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/nsrus.nbs 11102146179

acm -US73 V3»;19S0 C.1 NBS-PUB.0 1964 c

5- <v W J 4,

^fAU O?

NSRDS—NBS 3, Section 9

No. 3-9

1980

c. 2
NATIONAL BUREAU OF STANDARDS

The National Bureau of Standards 1 was established by an act of Congress on March 3, 1901. The Bureau’s overall goal is to strengthen and advance the Nation’s science and technology

and facilitate their effective application for public benefit. To this end, the Bureau conducts

research and provides: (1) a basis for the Nation’s physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety. The Bureau’s technical work is per- formed by the National Measurement Laboratory, the National Engineering Laboratory, and

the Institute for Computer Sciences and Technology.

THE NATIONAL MEASUREMENT LABORATORY provides the national system of

physical and chemical and materials measurement; coordinates the system with measurement

systems of other nations and furnishes essential services leading to accurate and uniform

physical and chemical measurement throughout the Nation’s scientific community, industry,

and commerce; conducts materials research leading to improved methods of measurement,

standards, and data on the properties of materials needed by industry, commerce, educational

institutions, and Government; provides advisory and research services to other Government

agencies; develops, produces, and distributes Standard Reference Materials; and provides

calibration services. The Laboratory consists of the following centers:

Absolute Physical Quantities2 — Radiation Research — Thermodynamics and

Molecular Science — Analytical Chemistry — Materials Science.

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provides engineering measurement traceability services; develops test methods and proposes

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Engineering and Process Technology2 — Building Technology — Fire Research —

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THE INSTITUTE FOR COMPUTER SCIENCES AND TECHNOLOGY conducts

research and provides scientific and technical services to aid Federal agencies in the selection,

acquisition, application, and use of computer technology to improve effectiveness and

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relevant Executive Orders, and other directives; carries out this mission by managing the

Federal Information Processing Standards Program, developing Federal ADP standards

guidelines, and managing Federal participation in ADP voluntary standardization activities; provides scientific and technological advisory services and assistance to Federal agencies; and

provides the technical foundation for computer-related policies of the Federal Government.

The Institute consists of the following centers:

Programming Science and Technology — Computer Systems Engineering.

'Headquarters and Laboratories at Gaithersburg, MD, unless otherwise noted; mailing address Washington, DC 20234.

2 Some divisions within the center are located at Boulder, CO 80303.
*UJkSA-U V ffAK&ASQg um«t

Selected Tables of Atomic Spectra

JUN 2 5 1980

A Atomic Energy Levels - Second Edition

B Multiplet Tables

Ov

2

Data Dervied from the Analyses of Optical Spectra

Charlotte E. Moore

Office of Standard Reference Data

National Bureau of Standards

Washington, D.C. 20234

U.S. Naval Research Laboratory

E. O. Hulburt Center for Space Research

Washington, D.C. 20375

U.S. DEPARTMENT OF COMMERCE, Philip M. Klutznick, Secretary

Luther H. Hodges, Jr., Deputy Secretary

Jordan J. Baruch, Assistant Secretary for Productivity, Technology, and Innovation

NATIONAL BUREAU OF STANDARDS, Ernest Ambler, Director

Issued May 1980
Library of Congress Catalog Card Number: 64-60074

NSRDS-NBS 3, Section 9

Nat. Stand. Ref. Data Ser., Nat. Bur. Stand. (U.S.), 3, Sec. 9, 21 pages (May 1980)

CODEN: NSRDAP

©1980 by the Secretary of Commerce on Behalf of the United States Government

For sale by the Superintendent of Documents, E\S. Government Printing

Office, Washington, D.C. 20402 - Price $2.75
Abstract

The present publication is the ninth section of a series being prepared in response to the need for a current revision of two sets of the author’s tables containing data on atomic spectra as derived from

analyses of optical spectra. As in the previous Sections, Part A contains the atomic energy levels and

Part B the multiplet tables. Section 9 includes these data for 0 V. The form of the presentation is described in detail in the text to Section I.

Key words: Atomic energy levels, 0 V; atomic spectra, 0 V; multiplet table, 0 V; oxygen spectra, 0 V; spectrum 0 V; wavelengths, O V.

Ill
Foreword

The National Standard Reference Data System provides access to the quantitative data of physical science, critically evaluated and compiled for convenience and readily accessible through a

variety of distribution channels. The System was established in 1963 by action of the President’s

Office of Science and Technology and the Federal Council for Science and Technology, and

responsibility to administer it was assigned to the National Bureau of Standards.

NSRDS receives advice and planning assistance from a Review Committee of the National

Research Council of the National Academy of Sciences-National Academy of Engineering. A number of Advisory Panels, each concerned with a single technical area, meet regularly to examine

major portions of the program, assign relative priorities, and identify specific key problems in

need of further attention. For selected specific topics, the Advisory Panels sponsor subpanels

which make detailed studies of users’ needs, the present state of knowledge, and existing data re- sources as a basis for recommending one or more data compilation activities. This assembly of

advisory services contributes greatly to the guidance of NSRDS activities. The System now includes a complex of data centers and other activities in academic insti- tutions and other laboratories. Components of the NSRDS produce compilations of critically

evaluated data, reviews of the state of quantitative knowledge in specialized areas, and computations of useful functions derived from standard reference data. The centers and projects also

establish criteria for evaluation and compilation of data and recommend improvements in ex- perimental techniques. They are normally associated with research in the relevant field. The technical scope of NSRDS is indicated by the categories of projects active or being

planned: nuclear properties, atomic and molecular properties, solid state properties, thermodynamic and transport properties, chemical kinetics, and colloid and surface properties.

Reliable data on the properties of matter and materials are a major foundation of scientific

and technical progress. Such important activities as basic scientific research, industrial quality control, development of new materials for building and other technologies, measuring and correcting

environmental pollution depend on quality reference data. In NSRDS, the Bureau’s responsibility

to support American science, industry, and commerce is vitally fulfilled.

Ernest Ambler, Director

IV
Preface

The present publication is the ninth section of a series that is being prepared in response to the

increasing demand for a current revision of two sets of tables containing data on atomic spectra as derived from analyses of optical spectra.

The first set. Atomic Energy Levels, NBS Circular 467, consists of three volumes published, respectively, in 1949, 1952 and 1958. This Circular has been reprinted as NSRDS-NBS 35, Volumes I, II and III. The second set consists of two Multiplet Tables; one published in 1945 by the Princeton University

Observatory, containing multiplets having wavelengths longer than 3000 A; the other. An Ultraviolet

Multiplet Table, NBS Circular 488, appearing in five Sections, the first in 1950, the second in 1952,

and the others in 1962. The Princeton Multiplet Table was reprinted in 1972 as NSRDS-NBS 40.

The present series includes both sets of data, the energy levels and multiplet tables, as Parts A and

B, respectively, for selected spectra contained in Volume I of “Atomic Energy Levels.” The sections are being published at irregular intervals as 'revised analyses become available. A flexible paging permits

the arrangement of the various sections by atomic number, regardless of the order in which the separate

spectra are published. Section 1 includes three spectra of silicon, Z=14: Si II, Si ill. Si IV. Section 2

contains similar data for Si I. Section 3 covers all spectra of carbon, Z = 6: C I, C II, C ill, C IV, C v, C VI. Section 4 includes the last four spectra of nitrogen, Z = 7; N IV, N V, N VI, N VII. Section 5

completes the spectra of nitrogen, N I, N II, N III. Section 6 contains the spectra of hydrogen, Z=l:

H I, D, T. Section 7 contains the first spectrum of oxygen, Z = 8: O I, and Section 8 the last three

spectra of oxygen, Z = 8: 0 VI, 0 VII, O VIII. The present Section, 9, contains O V. The form of presentation of the data is described in detail in the text of Section 1. All sections are arranged identically,

and the same conversion factor, cm

-1

to eV, 0.000123981 is used throughout.

The manuscript has been prepared by Charlotte E. Moore, who published the earlier tables. She

appreciates the cordial cooperation of numerous atomic spectroscopists. She is particularly indebted to B. Edlen in Lund, Sweden, W. C. Martin and R. Zalubas in the Spectroscopy Section of this Bureau,

and to D. R. Lide and his staff for their cordial collaboration in publishing this material.

Washington, D.C., July 1979

V
a

-
Contents

p«*'

Abstract Ill Foreword IV

Preface V

Part A-Atomic Energy Levels

Element: Z Spectrum

Oxygen: 8

0 v A8 v-1 to A8 v-4

Part B-Multiplet Tables

Element: Z Spectrum

Oxygen: 8

0 v B8 v-1 to B8 v-6

VII
Errata

NSRDS-NBS 3, Section 8

Selected Tables of Atomic Spectra, Atomic Energy Levels and

Multiplet Tables, 0 VI, 0 VII, 0 vm

O vi

Part A. An obvious duplication of configuration assignments for two pairs of levels above the ionization limit have been called to the writer’s attention by W. C. Martin and V. Kaufman: the pair

4537620 and 4541330 cm

-1 and the pair 4582950 and 4591370 cm-1

. From a study of the data re- ported in the literature, it appears reasonable to conclude that the lower pair of levels represents

different observations of the same line from which the level has been derived. The level 4541330 cm

-1

should be rejected.

In the upper pair, the level 4582950 cm

-1 should be designated 2p" 2 P° because of its reasonable

agreement with an estimated value. The level 4591370 cm" 1 should be rejected. Part B. As a result of these corrections, the Multiplets UV 2.10 and UV 2.12 should be rejected

and UV 2.11 should have the designation 2s 2S-2p" 2 P°. O vii

Part A. W. C. Martin has also noted an evident misprint in 0 VII, namely; the levels 10593340 and

10593340 + x cm

-1 should doubtless have the configuration 2s 3p.

Part B. The designations of Multiplets 17 and 31 should be corrected accordingly.

June 5, 1979

VIII
NSRDS-NBS 3, SECTION 9

OXYGEN Z=8

A 0 V Atomic Energy Levels

B 0 V Multiplet Table

Atomic Energy Levels

Part A OXYGEN

O v

Be I sequence: 4 electrons Z — 8

Ground State Is 2 2s 2 1 So

2s 2 ‘So 918657 ±4cm-1

; 108.855 A I P 113.896 eV

The detailed analysis published in 1968 by K. Bockasten and K. B. Johansson is presented here.

These authors have recalculated all of the energy levels from measurements of 126 lines between 340 A

and 7700 A as observed with a theta-pinch discharge as source, combined with 31 lines observed by B. Edlen in the range 172 A - 287 A. They have connected the singlet and triplet terms by observation

and derived the value of x in “Atomic Energy Levels” as —182.4cm -1

. The intercombination line 2s 2 1 S-252p 3 P l5 which is of special interest in the interpretation of XUV

stellar spectra, has recently been remeasured by C. M. Brown at 1218. 344±0. 010 A. The value of

2p

3P i from this observation is 82078.62cm -1

, resulting in a correction of +3. 3cm -1

to all triplet terms. This adjustment has been made in the present list and is in accord with B. Edlen’s current study

of the Be I isoelectronic sequence.

The ionization limit listed above has been determined “by applying the polarization formula to the

hydrogen-like levels and by using the theoretically predicted value of the dipole polarizability.”

Wavelengths calculated to four places are listed for 66 lines in the region 124 A - 286 A “suitable

as reference lines.” In general, the four-place calculated wavelengths are quoted in the Multiplet Table

in preference to the observed values.

In 1975 Edlen extended the 1968 paper by observations from 194 A to 114 A. From this list of

classified lines the writer has added the following energy levels, with the wavelengths on which they are based:

Desig. Level(cm ‘) Wavelength (A) Desig. Level (cm *) Wavelength (A)

45

' *Pi 818668? 165.349 8d

3D1>2 875162 126.082

V ^0 834835? 132.845 5p' 3Po 900858 122.133

4d' ^

836985? 165.218 bp' 3P 1 901023 122.088

4p' ‘So 839441? 146.920 5d' ^

904027 144.809

4d' 3D°i 841102 159.327 5d' ^2 904183 144.809

7d

3 D , , 2 861778 128.246

The level 838375 has been designated as 6p

3P0 , 1,2 instead of 6p

3P2 on the basis of the resolved triplet

at 160 A. Brackets in the Table of Energy Levels denote calculated values. The authors of the 1968 paper have noted an error in “Atomic Energy Levels,” p. 57: the level listed there as 902592 cm

-1 should have read 902692 cm-1

.

References

B. Edlen, Nova Acta Reg. Soc. Sci. Upsala [IV] 9, No. 6, 49, 64-72 (1934). 1 P, T, C L, G D

C. E. Moore, Atomic Energy Levels, I, Circ. Natl. Bur. Std. 467, 57 (1949). I P, T

K. Bockasten and K. B. Johansson, Ark. Fys. 38, No. 31, 563-584 (1968). I P, T, t. L, G D

B. Edlen, Physica Scripta 11, 366-370 (1975). C L

C. M. Brown, Unpublished (May 1979). W L

B. Edlen, Physica Scripta 20, 129-137 (1979). T, C L

A8 V— 1
Atomic Energy Levels

O

v o v

Config. Desig.

J Level Interval Config. Desig.

J Level Interval

25 * 25 2 X S 0 0 25(S)45 45 3 S 1 722480.0

2s( 2 S)2p 2p 3 P° 0 81942.5

136.1

25( 2 S)45 45

X S 0 731670.5 1 82078.6 2 82385.3

306.7

25( 2 S)4p 4p 3 P° 0 735911.6

10.4

27.1 1 735922 .0 2s( 2 S)2p 2/> 1 P° 1 158797.7 2 735949.1

2p 2 2p 23 P 0 213462.5

155.7

25( 2 S)4p 4p 1 P° 1 737880.8 1 213618.2 2 213887.0

268.8

25( 2 S)4<i 4 d 3 D 1 742239.4 4 7 2 742244. 1

4.5 2P 2 2p 2 ‘D 2 231721.4 3 742248.6

2p 2 2p 21 S 0 287910.3 25( 2 S)4<f 4d ‘D 2 746274.9

2s( 2 S)3s 35 3 S 1 546972.7 25( 2 S)4/ 4/ 3 F° 2, 3, 4 747550.5

2i(*S)35 35

X S 0 561276.4 25(*S)4/ 4/ 3 749840.5

2s( 2 S)3/> 3p 1 P° 1 580824 .9 25( 2 S)55 55 3 S 1 796071 2 5 ( 2 S)3p 3p 3 P° 0 582806.4

36.7

25( 2 S)5p 5p 1 P° 1 802466 1 582843.1 2 582920.3

77.2

25( 2 S)5p 5p 3 P° 01 802862

16

2s( 2 S)3rf 3d 3 D 1 600748.9

10.0 2 802878 2 600758.9 3 600779.2

20.3

2s( 2 S)5d 5J 3 D 1 [806446.4]

[2.0]

[3.0] 2 [806448.4]

2i( 2 S)3</ 3d

J

D 2 612615.6 3 806451.4

2p( 2 P°)35 35' 3 P° 0 652918.0

162.1

2s( 2 S)5d 5<f 2 808352.3 1 653080.1 2 653423.3

343.2 2s( 2 S)Sg 5g 3 G 3,4 808388.2 3 7 5 808391.9

2p( 2 P°)3i 35' »P° 1 664485.9

2s( 2 S)5g 5^ 4 808388.6

2p( 2 F)3p 3p'

X P 1 672693.8

2s( 2 S)5f 5/ 3 F° 2 808613.0

0.9

2.2

2p( 2 P)3p 3p' 3 D 1 677150.7

197 8 3 808613.9 2 677348.5

316.5 4 808616.1 3 677665.0

2s( 2 S)5f 5/ iF0 3 808916.8

2p( 2 P°)3p 3p' 3 S 1 683942.9

2p( 2 P°)45 45' 3 F 0

2p( 2 F)3p 3p' 3 P 0 689403.5

114 2 1 1 689517.7

190.8 2 818668 2 689708.5

2/>( 2 P°)45 45' ‘P0 1 824282

2p( 2 P)3<f 3d' 3 F° 2 692626.0

183.4 235.4 3 692809.4 2/>( 2 P°)4p 4p' VP 1 829597 4 693044 .8 2p( 2 P°)4p 4p' 3 D 1 , 830867

162

2p( 2 F)3<f 3d' 1 D° 2 694643.8 2 831029 305 3 831334

2p( 2 F)3p 3p' ‘D 2 697170.2

2p( 2 P°)4p 4

p' 3 S 1 832072

2p( 2 P°)3<i 3d' 3 D° 1 704182

60

106 23 704242

704348

2p( 2 P°)4p 4p' 3 P 01 834835

834972

137

170 2 835142

2p( 2 P°)3p 3p' »S 0 707635.5

2p( 2 P°)4<f 4<f' 3 P 2 836985

2p( 2 F)3<f 3d' 3 P° 2 707981 2

-143 9 3 1 708125.1 -80 4 0 708205

2p( 2 F)3<f 3d' »F° 3 712963.5 2p( 2 P°)4</ 4<f ' 1 D° 2 837833

2p( 2 F)3</ 3d' 1 P° 1 719274.9 2p( 2 P°)4p 4p' 1 D 2 837855

A8 v-2
Atomic Energy Levels

O V—Continued O V—Continued

Config. Desig. J Level Interval Config. Desig. J Level

i interval ]

25( a S)6p 6p 3 P° 0, 1, 2 838375 2j( 2 S)8p 8p 'P° 1 874447

I

2p( 2 P°)4p 4p' »S 0 839441 2j( 2 S)8 d 8 d

3 D 1. 2 875162

24

3 875186

2i( 2 S)6p 6p

X P° 1 839616

2s( 2 S)8i 8t 3I 5, 6. 7

| 875777.7

2s( 2 S)6g 6g 3 G 3 840126.7

42.

7

& *1 6 4 840169.4

122.1

5 840291.5 2s( 2 S)8k 8 k

3 K° 6, 7, 8

f 875789.1

8 k

1 K° 7 ) 2s(*S)6g 6g X G 4 840385.2

2p( 2 P°)5p 5p' X P 1 898580

2i( 2 S)6/ 6/ 1 F° 3 840821 .5 2p( 2 P°)5p 5p' 3 D 1 2s( 2 S)6<f 6rf 3 D 1, 2, 3 841036 2

3 899492

2p( 2 P°)4<f 4

3 D° 1 841102

93

123

2 841195 2p( 2 P°)5p 5

p' 3 P 0 900858

165 i 3 841318 1 901023

142

2 901165

2i( 2 S)6<f 6<f 1 D 2 842087

2p( 2 P°)5p 5p ' 1 D 2 902442

2i( 2 S)6/i 6/i 3 H° 4, 5, 6

[ 842376.5

6h 1 H° 5 \ 2p( 2 P°(5<f 5 d' 1 D° 2 902691

2s( a S)6/ 6/ 3 F° 2 842707.3

16 0

2p( 2 P°)5<i 5 d' 3 D° i 904027

156

135

|

3 842723.3

19.0 2 904183

4 842742.3 3 904318

2p( a P°)4<f 4d' 3 P° 2 843111 -107

2p( 2 P°)5<f 5 d' 3 P° 2 904810

1 843218 1 0 843270 — 52 0

2p( 2 P°)5<f 5 d' l F° 3 906403

2p( 2 P°)4/ 4/ 3 G 3 845481.6

65.1 160.0

4 845546.7 0 vi ( 2 Sovi ) Limit 918657±4

5 845706.

7

2p( 2 P°)6p 6p

’ 1 P 1 935093

2p( 2 P°)4/ 4/' 1 G 4 845942.6

2p( 2 P°)6p 6p' 3 D 1 2p( 2 P°)4<f 4d' 1 F° 3 847136 2

3 935766

2p( 2 P°)4 <f 4d' »P° 1 847460

2p( 2 P°)6p 6p' 3 P 0

25( a S)7p Ip X P° 1 860874 12 936626

2s( 2 S)7<f Id 3 D 1, 2 861778

18

3 861796 2p( 2 P°)6p 6p' 1 D 2 937341

2s( 2 S)7<f Id 1 D 2 862419 2p( 2 P°)7p 7p' 3 D 1

2s( 2 S)7/i 7h 3 H° 4, 5, 6

[ 862609.

5

z3 957314

7h 1 H° 5

2p( 2 P°)7p 7p' 3 P 0

12

2$( 2 S)7i 7 i 3

1 7i X I

5, 6, 7 6 J 862653.

7

957850

2p(a P°)7<f 7<f' 3 D° 1

2s( 2 S)7g 7g

3 G 3 862793.

1

3.7

2

3 959016

4 862796.8 9 ^ 5 862799.3

0 vi ( 2 P°ow ) Limit 1015031

2i( 2 S)7g 7g X C 4 862800.7 0 vi ( 2 P° m ) Limit 1015561

Mav 1979.

A8 V-3
Atomic Energy Levels

O V Observed Terms

Config.

li 2 +

Observed Terms

25 2

25(

2S)2p

2P

2

2s 2 l S

/

2p

3 P° \ 2p

1 P°

( 2p

2 3P }2p 2 »S 2p 2 *D

ns(n^3) np(n^ 3) nd(n^3) nf(n^ 4)

(3- 55 3S 3-6p 3P° 3-8 d

3 D 4-6/ 3F°

( o)nl |3,4s ‘S 3-8p 1 P° 3-7 d *D 4-6/ ‘F°

9n/ 2P°U/ / / 3,4s' 3P° 3,4p' 3 S 3-7p' 3P 3-7p' 3D 3-5 d' 3P° 3-5,7 d' 3D° 3,4d' 3F° 4

/' 3G

^P\ * )Tli |

3,45' >P° 3,4p ' *S 3-6p' *P 3-6p' >D 3,4d' ‘P

0 3-5 d' ‘D0 3-5 d' ‘F° 4

/' l G

ng(n*z 5) nh(n^ 6) ni(n^7) nk(n^8)

2s(tS)nl i 5-7 g

3G

\ 5-7* ‘G

3u°

6, 7h 7,8 i [\

3vo 84 V

A8 v-4
Pari B Multiplet Table

OXYGEN

O v(Z=8)

I P 113.896 Limit 918657 cm

-1 108.855A

Anal A List A May 1979

REFERENCES

A K. Bockasten and K. B. Johansson, Ark. Fys. 38, No. 31, 563-584 (1968). I P, T, C L, I; W L 124 A - 7610 A

B C. M. Brown, Unpublished material (May 1979). W L 1218.344 ± 0.010 A.

C B. Edlen, Physica Scripta 11, 366-370 (1975). C L, I; W L 114 A-194 A

D B. Edlen, Nova Acta Reg. Soc. Sci. Upsala [IV] 9, No. 6, 49, 64-72 (1934). 1 P, T, C L, 1, G D: W L 122 A - 4554 A

E B. Edlen, Zeit. Astroph. 7, 378-390 (1933). W L 3702-6830 A; Lines observed in spectra of hot stars.

P Predicted Lines:

Four-place calculated wavelengths “suitable as reference lines,” 124 A -170 A are quoted from Ref. A,

Table 6, p. 579. Observed intensities are entered for these lines. Four-place calculated wavelengths are quoted from Ref. C, 124 A-194 A. Observed intensities are entered

for these lines. Two-place wavelengths calculated from the energy levels (Part A) for lines listed in Ref. E as observed in spectra of hot stars and for missing lines in some multiplets.

New Multiplet Numbers not inserted between older ones start with UV 17 and 18.

m Masked

Raie Ultime

Blend

and § Blend of O V and 0 IV

and §§ Blend of 0 V and 0 III

and t Blend of 0 V and 0 II

B8 v— 1
Multiplet Table

O v O v

I A Ref. Int. E P

J Multiplet No.

I A Ref. Int. E P

J Multiplet Low High Low High No.

Vac Vac

1218.344 B i 0.00 10.18 0-1 2s 2 ‘S-2p

3P° 164.6570 P 7* 10.21 85.51 2-2 2p

3P°-3p ,3P UV 0.01 164.6256 P 4 10.18 85.49 1-1 U V 6.02 164.7087 P 6 10.21 85.49 2-1 629.730t A 25 0.00 19.69 0-1 2s 2 'S-2p ‘P° 164.6565 P 7* 10.18 85.47 1-0

UV 1 164.5739 P 6 10.18 85.51 1-2 164.5887 P 5 10.16 85.49 0-1

172.1689 P 13 0.00 72.01 0-1 2s 2 'S-3p

‘P° UV 2 156.2269 P 4 10.21 89.57 2-1 2P

3P

°-4s ®S 156.1521 P 3 10.18 89.57 1-1 UV 6.03 139.0289 P 7 0.00 89.18 0-1 2s 2 ‘S-3 d' l P° 156.1189 P 2 10.16 89.57 0-1 UV 2.01 151.5465 P 8* 10.21 92.02 2-3 2p ^-4^ 3D

135.5232 P 7 0.00 91.48 0-1 2

s

2 *S-4p ‘P° 151.4772 P 7* 10.18 92.02 1-2 UV 6.04 UV 2.02 151.4470 P 6 10.16 92.02 0-1

124.6159 P 6 0.00 99.49 0-1 25 2 *S-Sp ‘P

0 151.5476 P 8* 10.21 92.02 2-2

UV 2.03 151.4782 P 7* 10.18 92.02 1-1

119.102 C 4 0.00 104.10 0-1 25 2 'S-6p ‘P° 140.115 C 2 10.21 98.70 2-1 2P ^-55 ^

UV 2.04 140.052 C 1 10.18 98.70 1-1 UV6.05

140.030 C 0 10.16 98.70 0-1

118.000 C 1 0.00 105.07 0-1 25 2 'S-4J' *P° UV 2.05 138.1089 P 6* 10.21 99.98 2-3 2P ^-5^ 3D

138.0510 P 5* 10.18 99.98 1-2 UV 6.06

116.161 c 2 0.00 106.73 0-1 25 2 *S-7p ‘P° 138.0255 P 4 10.16 99.98 0-1

UV 2.06 138.1095 P 6* 10.21 99.98 2-2

138.0514 P 5* 10.18 99.98 1-1 114.358 c 1 0.00 108.41 0-1 25 2 ‘S-8p

1 P° UV 2.07 133.5204 P 5 d* 10.21 103.07 2-3 2

P

3P°-4p' 3D

133.5201 P 5 d* 10.18 103.03 1-2 UV 6.07 133.5247 P 5 d* 10.16 103.01 0-1

760.445 A 22 10.21 26.52 2-2 2p

*?°-2p 2:iP 133.5748 P 1 10.21 103.03 2-2

760.228 A 19 10.18 26.48 1-1 UV 3 133.5490 P 1 10.18 103.01 1-1 762.003 A 21 10.21 26.48 2-1

761.128 A 20 10.18 26.47 1-0 133.389 c 3 10.21 103.16 2-1 2P

758.678 A 21 10.18 26.52 1-2 133.335 c 2 10.18 103.16 1-1 UV 6.08 759.441 A 20 10.16 26.48 0-1 133.316 c 1 10.16 103.16 0-1

669.628 A 5 10.21 28.73 2-2 2p V-Sp* 1 D *132.845 c 4 10.21 103.54 2-2 2

P

3P°-4p' 3p

668.225 A 1 10.18 28.73 1-2 UV 3.01 132.875 c 2 10.21 103.52 2-1 UV 6.09 *132.845 c 4 10.18 103.50 1-0

215.245 A 9 10.21 67.81 2-1 2p

3P°-35 ^ *132.797 c 3 10.18 103.54 1-2 215.103 A 8 10.18 67.81 1-1 UV 4 *132.797 c 3 10.16 103.52 0-1

215.040 A 7 10.16 67.81 0-1

*131.812 c 4 10.21 104.27 2-3 2p *P-6d 3D

192.9035 P 14* 10.21 74.49 2-3 2p ^-3d

3D

*131.758 c 3 10.18 104.27 1-2 U V 6.10 192.7970 P 13* 10.18 74.48 1-2 UV 5 131.738 c 2 10.16 104.27 0-1

192.7501 P 12 10.16 74.48 0-1

192.9111 P 14* 10.21 74.48 2-2

*131.812 c 4 10.21 104.27 2-2

*131.758 c 3 10.18 104.27 1-1 192.8007 P 13* 10.18 74.48 1-1

167.9883 P 8* 10.21 84.02 2-3 2p ^Sp,3D

128.302 c 3 d 10.21 106.85 2-3 2P

3P°-7d3D

167.9910 P 8* 10.18 83.98 1-2 UV 6 *128.246 c 2d 10.18 106.84 1-2 UV 6.11 168.0084 P 5 10.16 83.95 0-1 *128.246 c 2d 10.16 106.84 0-1 168.0776 P 4 10.21 83.98 2-2

168.0469 P 4 10.18 83.95 1-1 126.135 c 2d 10.21 108.51 2-3 2P *D 168.1335 P 1 10.21 83.95 2-1 *126.082 c Id 10.18 108.50 1-2 UV 6.12 *126.082 c Id 10.16 108.50 0-1

166.2351 P 6 10.21 84.80 2-1 2p ^-Sp'tS

166.1504 P 5 10.18 84.80 1-1 UV 6.01 122.383 c 4 10.21 111.52 2-3 2p

166.1128 P 4 10.16 84.80 0-1 UV 6.13

B8 v-2
Multiplet Table

O V—Continued O V—Continued

I A Ref. Int. E P

J Multiplet No.

I A Ref. Int. E P

J Multiplet Low High Low High No.

Vac Vac

122.133 C 3 10.21 111.73 2-2 2P

3P°-5p' 3P 134.473 C 2 19.69 111.89 1-2 2p ‘P°-5p' ‘D 122.088 C 1 10.18 111.71 1-1 UV 6.14 UV 12.11

117.181 C 2 10.21 116.02 2-3 2P

3P°-6p ' 3D 128.817 C 0 19.69 115.93 1-1 2p , P°-6p' , P UV 6.15 UV 12.12

117.063 C 2 10.21 116.12 2-2 2P

3P°-6p' 3P 128.445 C 1 19.69 116.21 1-2 2p ‘P°-6p' ‘D UV 6.16 UV 12.13

114.295 C 1 10.21 118.69 2-3 2P

3P°-7p' 3D 270.982 D 0 26.53 72.27 2-2 2

p

2 ^ -3p ^

UV 6.17 UV 12.14

114.225 C 1 10.21 118.76 2-2 2P

3P°-7p' 3P 227.511 A 7 26.52 81.01 2-2 2

p

2 *P -3i ,3P° UV 6.18 227.549 A 5 26.48 80.97 1-1 UV 12.15 227.689 A 5 26.52 80.97 2-1

1371.292 A 20 19.69 28.73 1-2 2P

1 P°-2p 2 *D 227.634 A 5 26.48 80.95 1-0

UV 7 227.372 A 5 26.48 81.01 1-2 227.469 A 5 26.47 80.97 0-1 774.518 A 18 19.69 35.70 1-0 2P 'P°-2p 21S UV 8 203.890 D 8 26.52 87.33 2-3 2

p

2 ^ -3rf

,3D°

203.821 D 7 26.48 87.31 1-2 UV 13 248.459 A 6 19.69 69.59 1-1 2p *P°-3s ‘S 203.783 D 6 26.47 87.31 0-1 UV 9 203.935 D 6 26.52 87.31 2-2

220.352 A 13 19.69 75.95 1-2 2P

l F°-3d 'D 203.851 D 6- 26.48 87.31 1-1 UV 10 202.393 A 7 26.52 87.78 2-2 2

p

2 ^ -3d ,3P° 202.224 A 5 26.48 87.79 1-1 UV 14 194.5919 P 9 19.69 83.40 1-1 2P *P°-3p MP

202.334 A 5 26.52 87.79 2-1 UV 11 202.191 D 5 26.48 87.80 1-0

185.7450 P 10 19.69 86.44 1-2 2p ‘P^p^D 202.283 A 5 26.48 87.78 1-2 UV 12 202.161 A 5 26.46 87.79 0-1

191.5481 P 2* 26.52 91.24 2-2 2

p

2 ^ -4p ^

182.2032 P 3 19.69 87.73 1-0 2P

1 P°-3p' 1 S 191.4595 P 1* 26.48 91.24 1-1 UV 14.01 UV 12.01 191.5580 P 2* 26.52 91.24 2-1 191.4633 P 1* 26.48 91.24 1-0 174.5588 P 3 19.69 90.71 1-0 2p ‘P°-4s l S 191.4495 P 1* 26.48 91.24 1-2 UV 12.02 191.4024 P 0 26.47 91.24 0-1

170.2194 P 7 19.69 92.52 1-2 2P >P°-4<f ‘D 169.782 P 26.52 99.54 2-2 2

p

2 *P -5p V

UV 12.03 169.709 P 26.48 99.54 1-1 UV 14.02

153.9516 P 5 19.69 100.22 1-2 2P *P°-5d

l D 165.349 C 1 26.52 101.50 2-2 2p 2 3 P-4j

' 3P6’ UV 12.04 UV 14.03

149.076 C 4 19.69 102.85 1-1 2p ‘P°-4p''P *160.1312 P 1 26.52 103.94 2- 2p* *P -6p

*P° UV 12.05 *160.059 C 1 26.48 103.94 1- UV 14.04 160.023 C 0 26.47 103.94 0-1

147.263 C 5 19.69 103.88 1-2 2P 'P°-4p MD 159.380 C 6 26.52 104.31 2-3 2

p

2 J P-4<f' s D° UV 12.06 159.343 c 5 26.48 104.29 2-3 UV 14.05 159.327 c 4 26.47 104.28 0-1

146.920 C 0 19.69 104.07 1-0 2P ‘P°-4p ,1S? 159.411 c 3 26.52 104.29 2-2

UV 12.07 158.926 c 4 26.52 104.53 2-2 2p* 3P-4<f ' *P° 146.347 C 3 19.69 104.40 1-2 2P ‘P°-6tf *D *158.818 c 3 26.48 104.54 1-1 UV 14.06 158.899 c 2 26.52 104.54 2-1 UV IZ.l/O *158.818 c 3 26.48 104.55 1-0 158.858 c 1 26.48 104.53 1-2 142.122 C 1 19.69 106.92 1-2 2P ‘P°-7d ‘D 158.792 c 2 26.47 104.54 0-1 UV 12.09 144.837 c 4 d 26.52 112.12 2-3 2

p

2 3P-5</' 3D°

135.175 C 1 19.69 111.41 1-1 2P 'P^p^P *144.809 c 4d 26.48 112.10 1-2 UV 14.07 UV 12.10 *144.809 c 4 d 26.47 112.08 0-1

B8 v-3
Multiplet Table

O V—Continued O V—Continued

I A Ref. Int. E PJ Multiplet No.

I A Ref. Int. E P

J Multiplet Low High Low High No.

Vac Vac

529.202 A 6w 67.81 91.24 1- 35 3S-4p

3P° 144.734 C Ibd 26.52 112.18 2p

2 3P-5d,3P° UV 33

UV 14.08 390.755 A 3 67.81 99.54 1- 3s ^-Sp 3P° 134.205 C Id 26.52 118.90 2-2 2

p

2 3P-7<f ' 3D° UV 34

UV 14.09 343.168 A 1 67.81 103.94 1-2 35 3S-6p 3P° 286.448 A 6 28.73 72.01 2-1 2

p

2 ‘D-3P ‘P

0 UV 35

UV 14.10

Air *231.070§ D 7* 28.73 82.38 2-1 2p

2 ^-35 ' *P° 5114.07 A 7 69.59 72.01 0-1 35 ‘S-3p *P° UV 14.11 1

216.018 A 9 28.73 86.12 2-2 2

p

2 *D-3d' ‘D

0 Vac UV 15 566.232 A 2 69.59 91.48 0-1 35 ‘S-4p ‘P° UV 36

207.794 A 10 28.73 88.39 2-3 2p

2 'V-Zd^Y0 UV 16 414.612 A 1 69.59 99.49 0-1 35 ’S-5p ‘P°

205. 105 A 2 28.73 89.18 2-1 2

p

2 ‘D-Sd'T0 UV 37

UV 17

Air 193.0058 P 6 28.73 92.97 2-3 2p

2 ‘D-4/ T° 3144.66 A 10 72.01 75.95 1-2 3P

lP-3d *D UV 18 2

173.252 P 28.73 100.29 2-3 2

p

2 ‘D-5f ‘F° Vac UV 19 788.577 A 1 h 72.01 87.73 1-0 3P ‘P-Sp^S

UV 38

168.759 C 2 28.73 102.20 2-1 2

p

2 *D-4s ' ‘P° UV 20 662.928 A Ih 72.01 90.71 1-0 3P

1 P°-4s lS UV 39

165.218 C 0 28.73 103.77 2-2 2

p

2 'D-4d' 3F°? UV 21 604.416 A 1 72.01 92.52 1-2 3P ‘P°-4<f *D UV 40

164.986 C 4 28.73 103.88 2-2 2p 2 l D-4d' ‘D" UV 22 439.517 A 3 72.01 100.22 1-2 3P 'P°-5<f *D UV 41 164.1766 P 4 28.73 104.25 2-3 2

p

2 *D-6/ lF° UV 23 382.757 A 0 72.01 104.40 1-2 3P *P°-6d ‘D UV 42

162.492 C 6 28.73 105.03 2-3 2p 2 1 D-4<f' 1 F° UV 24 Air 5597.91 A 9 72.27 74.49 2-3 3P

149.038 C i 28.73 111.92 2-2 2

p

2 'DSd1 ‘D

0 5580.12 A 7 72.26 74.48 1-2 3

UV 25 5571.84 A 5 72.26 74.48 0-1

5604.28 A 5 72.27 74.48 2-2

341.391 D 0 35.70 72.01 0-1 2

p

2 1 S-3p ip° 5583.23 A 5 72.26 74.48 1-1 UV 26 5607.41 P 72.27 74.48 2-1 Vac

265.550 D 4 35.70 82.38 0-1 2p 2 'S-3s' ‘P

0 1055.451 A 5 72.27 84.02 2-3 3P ^-Sp^D

UV 27 1058. 149 A 3 72.26 83.98 1-2 UV 43

1059.930 A 2 72.26 83.95 0-1

231.823 A 7 35.70 89.19 0-1 2p

2 'S-Zd' 1?

0 1058.998 A 2 72.27 83.98 2-2

UV 28 1060.380 A 2 72.26 83.95 1-1

222.235 A 3 35.70 91.48 0-1 2

p

2 »S-4p ‘P° 716.553 A 5 72.27 89.57 2-1 3P UV 29 716.137 A 3 72.26 89.57 1-1 UV 44

m715.955 P 0 iv 72.26 89.57 0-1

186.442 C 0 35.70 102.20 0-1 2

p

2 *S-4s ' l P° UV 30 627.636 A 5 72.27 92.02 2-3 3P

3P°—4<f 3D

627.351 A 4 72.26 92.02 1-2 UV 45

178.715 C 4 35.70 105.07 0-1 2p

2 *S-4</

,,P° 627.225 A 2 72.26 92.02 0-1

UV 31 469.150 A 1 72.27 98.70 2-1 3P

3P°-5s "S UV 46

Air 2781.01 A 25 67.81 72.27 1-2 35 *S-3p 3P° 447.356 A 4 72.27 99.98 2-3,2 3p

2786.99 A 24 67.81 72.26 1-1 UV 32 447.226 A 3/i 72.26 99.98 1-2,1 UV 47

2789.85 A 22 67.81 72.26 1-0

B8 v-4
Multiplet Table

O V—Continued

E P

I A Ref. Int. J Multiplet Low High No.

Vac

739.838 A ih 74.48 91.24 3 d

3D -4p3P° UV 48

681.272 A 12 74.48 92.68 3d 3D -4/

3F° UV 49

481.136 A 6 74.48 100.25 3d 3D-5/ 3F° UV 50

413.296 A 4 74.48 104.48 3d 3D -6/ V

UV 51

728.733 A 8 75.95 92.97 2-3 3d ‘D -4/ ‘F° UV 52

509.415 A 3 75.95 100.29 2-3 3d 'D -5/ *F° UV 53

438.197 A 0 75.95 104.25 2-3 3d ‘D -6/ *F° UV 54

Air 4123.99 A 8 81.01 84.02 2-3 3 s'

3P°-3p' 3D

m41 19.42 P 0 ii 80.97 83.98 1-2 4 m4125.49 P 0 hi 80.95 83.95 0-1

4178.45 A 4 81.01 83.98 2-2 - m4153.26 P 0 ii 80.97 83.95 1-1 4213.35 P 81.01 83.95 2-1

3275.63 A 1 81.01 84.80 2-1 3s' ^-Sp'^

3239.21 P 80.97 84.80 1-1 5 3222.29 P 80.95 84.80 0-1

2755.11 A 8 81.01 85.51 2-2 3 s' ^-Sp' 3?

2743.58 A 3 80.97 85.49 1-1 UV 55 2769.76 A 4 81.01 85.49 2-1

2752.24 A 4 80.97 85.47 1-0

2729.34 A 4 80.97 85.51 1-2 2731.45 A 3 80.95 85.49 0-1

Vac

562.080 A 3 81.01 103.07 2-3 3 s'

3P°-4p' 3D

561.959 A 2 80.96 103.02 1,0-2,

1

UV 56

Air 3058.68 D 0 82.38 86.44 1-2 3 s' ‘P^p^D

6

4554.53 A 3 83.40 86.12 1-2 3P' •P-3 d' *D°

7

6500.24 A 9 84.02 85.92 3-4 3p' 3D -3d l3F° 6466.13 A 8 83.98 85.90 2-3 7.01 6460.11 A 7 83.95 85.87 1-2 6601.28 A 2 h 84.02 85.90 3-3

6543.78 A 3 83.98 85.87 2-2

3746.60 P 84.02 87.33 3-3 3

p' 3D -3<f

,3D°

3717.27 P 83.98 87.31 2-2 8 3698.32 P 83.95 87.31 1-1 3761.54 P 84.02 87.31 3-2

3725.58 P 83.98 87.31 2-1

3702.68 P 83.98 87.33 2-3

3690.13 P 83.95 87.31 1-2

O V—Continued

E P

1

1 A Ref. Int. J Multiplet Low High No.

Air 3297.62 P 84.02 87.78 3-2 3

p' 3D -3d ,3V° 3248.28 P 83.98 87.79 2-1 9

3219.21 P 83.95 87.80 1-0 3263.54 P 83.98 87.78 2-2

3227.54 P 83.95 87.79 1-1 3242.61 P 83.95 87.78 1-2

4924.88 P 84.80 87.31 1-2 3/>' ^ -3</' 3D° 4939.48 P 84.80 87.31 1-1 10

4158.84 A 2 84.80 87.78 1-2 3p' ^ -3d ,3P° 4134.06 A 1 84.80 87.79 1-1 11 4120.44 P 84.80 87.80 1-0

6828.81 P 85.51 87.33 2-3 3

p' *P -3d ,3D° 6789.48 P 85.49 87.31 1-2 12 6764.58 P 85.47 87.31 0-1 6878.62 P 85.51 87.31 2-2

6817.26 P 85.49 87.31 1-1 6907.13 P 85.51 87.31 2-1

5471.12 P 85.51 87.78 2-2 3

p' ®P -3d ,3P° 5372.71 P 85.49 87.79 1-1 13 5428.38 P 85.51 87.79 2-1 5349.65 P 85.49 87.80 1-0 5414.59 P 85.49 87.78 1-2 5339.94 P 85.47 87.79 0-1

Vac

679.136 A 4 85.92 104.18 4-5 3d' 3F°-6g 3G

678.612 A 3 85.90 104.17 3-4 UV 57 677.968 A 2 85.87 104.16 2-3

655.039 A 5 85.92 104.85 4-5 3d' ^-4fK

*654.712§ A 3 85.90 104.83 3-4 UV 58

654.207 A 2 85.87 104.82 2-3

Air 6330.05 A 3 86.44 88.39 2-3 3

p' ‘D -3d''F

14

4522.66 P 86.44 89.18 2-1 3

p' ‘D -3<f'ip°

15

Vac

784.795 A 2 88.39 104.19 3-4 3d' 'r-bg 1 g

UV 59

*752.019§ A 1 88.39 104.88 3-4 3d' 1 F°-4/ ‘G UV 60

Air 3702.65 P 89.18 92.52 1-2 3d' 'P°-4 d 'D 16

7422.4 A 5 89.57 91.24 1-2 45 *S -4p V

7437.3 A 4 89.57 91.24 1-1 17

7443.

1

A 1 h 89.57 91.24 1-0

Vac

1243.801 A 1 89.57 99.54 1-2 As ^ -5p *P° UV 61

B8 v-5
Multiplet Table

O V—Continued O V—Continued

E P

I A Ref. Int. J Multiplet Low High No.

Vac

1418.393 A 3 91.24 99.98 2-3 4P

3P°-5<f 3D

1417.908 A 2 91.24 99.98 1-2 UV 62

1417.653 A 1 91.24 99.98 0-1

1419.009 A 2 91.48 100.22 1-2 4P ‘P°-5<f *D UV 63

1506.717 A 10m; 92.02 100.25 4 d

3D -5/ 3 F° UV 64

1596.375 A 7 92.52 100.29 2-3 4d ‘D -5/ ‘F® UV 65

1643.678 A 14m; 92.68 100.22 4/ ^-5# 3G

UV 66

1707.996 A 10 92.97 100.22 3-4 4/ ‘F®-5g *G UV 67

Air 2619.88 A 2 99.54 104.27 2-3 5P

3P°-6<f 3D

2618.81 A 1 99.54 104.27 1-2 UV 68

*2754.7 A 3 99.98 104.48 3-4 5d

3D -6/ 3P

2755.91 A 2 99.98 104.48 2-3 UV 69

2756.98 A 2 99.98 104.48 1-2

3078.95 A 2 100.22 104.25 2-3 5d *D -6/ l F° 18

*2941.65 A 11 + 100.23 104.44 5-6 5g *G -6h

3H°

2941.33 A 11 100.22 104.44 4, 3-5,4 UV 70

Vac *1844.495 A 2wh 100.23 106.95 5-6 5g ^ -7h

3H°

UV 71

Air *2941.65 A 11 + 100.22 104.44 4-5 5g *G -6h 'H° UV 72

Vac

*1844.495 A 2wh 100.22 106.95 4-5 XG ~lh ‘H® UV 73

Air 3156.11 A 7 100.25 104.18 4-5 5/ 3F°-6g 3G

3168.10 A 6 100.25 104.17 3-4 19 3172.31 A 5 100.25 104.16 2-3

I A Ref. Int. E P

J Multiplet

Low High No.

Air *2695. 44§§ A 6 100.25 104.85 4-5 5/ 3F°-4/' 3G

2706.83 A 4 100.25 104.83 3-4 UV 74 2711.53 A 4 100.25 104.82 2-3

Vac

1845.631 A 1 wh 100.25 106.97 5/ ^-7^ 3G

UV 75

Air 3176.87 A 6 100.29 104.19 3-4 5/ *F°-6g *G 20

2700.04 A 4 100.29 104.88 3-4 5/ ip_4/ *G UV 76

4479.45 A 5 104.18 106.95 5-6 6g ^ -7h 3H°

*4454. 97f A 4 104.17 106.95 4-5 21

*4446. 92f A 4 104.16 106.95 3-4

4498.82 A 5 104.19 106.95 4-5 6g lG -Ih ‘H° 22

4628.87 P 104.25 106.92 2-3 6/ l Y°-ld *D 23

4548.48 A 2 104.25 106.97 3-4 6/ J P-7g

l G

24

4930.27 A I2w 104.44 106.95 6h

3,1 H°-7i 3>1

I 25

2993.0 A 2 w 104.44 108.58 6h 31H°-8i 31

I UV 77

4984.41 A 2 104.48 106.97 4-5 5/ *F-lg ^

4980.30 A 2 104.48 106.97 3-4 26

4977.25 A 2 104.48 106.97 2-3

5914.54 A 4 h 104.85 106.95 5-6 4f

3G -Ih 3H°

5859.07 A 3 h 104.83 106.95 4-5 27

5836.79 A 3h 104.82 106.95 3-4

5999.50 A 3h 104.88 106.95 4-5 4f *G -7h

! H°

28

7592.0 A 6W 106.95 108.58 Ih 3,1 H°-8i 3 - 1 i

• 29

7610.9 A 8W 106.95 108.58 7t

3,1 I-8A 3,1 K° 30

B8 v-6

U.S. GOVERNMENT PRINTING OFFICE : 1980 0-303-705
NBS-U4A (rev. #-78)

U.S. DEPT. OF COMM.

BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO.

NSRDS-NBS 3, Section 9

2. Gov't. Accession

4. TITLE AND SUBTITLE

Selected Tables of Atomic Spectra, Atomic Energy

Levels and Multiplet Tables, 0 V

5. Publication Date May 1980

I. Performing Organization Code

7. AUTHOR(S)

Charlotte E. Moore

8. Performing Organ. Report No.

9. PERFORMING ORGANIZATION NAME AND ADDRESS

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, DC 20234

X0. Project/Task/Work Unit No.

11. Contract/Grant No.

12. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street, city. State. ZIP)

Same as item 9

13. Type of Report & Period Covered

N/A

15. SUPPLEMENTARY NOTES

Library of Congress Catalog Card Number: 6460074

| | Document describes a computer program; SF-185, FIPS Software Summary, is attached.

16. ABSTRACT (A 200-word or leas factual summary o( moa( ai ghi ficant information. If document includes a significant bibliography or

literature survey, mention it here.)

The present publication is the ninth section of a series being

prepared in response to the need for a current revision of two

sets of the author's tables containing data on atomic spectra as

derived from analysis of optical spectra. As in the previous

Sections, Part A contains the atomic energy levels and Part B

the multiplet tables. Section 9 includes these data for 0 V.

The form of the presentation is described in detail in the text

to Section I.

17. KEY WORDS (six to twelve entries; alphabetical order; capitalize only the first letter of the first key word unless a proper name;

separated by semicolons) Atomic energy levels, 0 V; atomic spectra, 0 V; multiplet table, 0 V; oxygen spectra, 0 V? spectrum 0 V; wavelenths, 0 V.

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by H. M. Rosenstock, K. Draxl, B. Steiner, and

J. T. Herron, National Bureau of Standards Provides a comprehensive body

of critically evaluated information on ionization potentials, ap- pearance potentials, electron affinities and heats of formation of gaseous positive and negative

ions. It is a complete revision and

extension of the earlier reference

work, "Ionization Potentials, Appearance Potentials and Heats

for Formation of Gaseous Positive Ions,” NSRDS-NBS 26.

Please send copies of

A. “PHYSICAL AND THERMODYNAMIC PROPERTIES OF ALIPHATIC ALCOHOLS.” (First supplement to Vol. 2 ol the Journal of Physical and

Chemical Reference Data.) Hard Cover: $33.00. Soft Cover: $30.00.

B. “THERMAL CONDUCTIVITY OF THE ELEMENTS. A COMPREHENSIVE

REVIEW.” (First supplement to Vol. 3 of the Journal of Physical and

Chemical Reference Data.) Hard Cover $60.00. Soft Cover: $55.00

C. “ENERGETICS OF GASEOUS IONS.” (First supplement to Vol. 6 of the Journal of Physical and Chemical Reference Data.) Hard Cover: $70.00

Soft Cover: $65.00.

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NBS TECHNICAL PUBLICATIONS

PERIODICALS

JOURNAL OF RESEARCH—The Journal of Research of the National Bureau of Standards reports NBS research and develop- ment in those disciplines of the physical and engineering sciences in which the Bureau is active. These include physics, chemistry,

engineering, mathematics, and computer sciences. Papers cover a broad range of subjects, with major emphasis on measurement

methodology and the basic technology underlying standardization. Also included from time to time are survey articles on topics

closely related to the Bureau’s technical and scientific programs. As a special service to subscribers each issue contains complete

citations to all recent Bureau publications in both NBS and non- NBS media. Issued six times a year. Annual subscription: domestic

$17: foreign $21.25. Single copy, $3 domestic; $3.75 foreign.

NOTE: The Journal was formerly published in two sections: Section A “Physics and Chemistry” and Section B “Mathematical

Sciences.” DIMENSIONS/NBS—This monthly magazine is published to in- form scientists, engineers, business and industry leaders, teachers,

students, and consumers of the latest advances in science and

technology, with primary emphasis on work at NBS. The magazine

highlights and reviews such issues as energy research, fire protection, building technology, metric conversion, pollution abatement,

health and safety, and consumer product performance. In addition, it reports the results of Bureau programs in measurement

standards and techniques, properties of matter and materials,

engineering standards and services, instrumentation, and

automatic data processing. Annual subscription: domestic $11;

foreign $13.75.

NONPERIODICALS

Monographs—Major contributions to the technical literature on

various subjects related to the Bureau’s scientific and technical activities. Handbooks—Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with in- terested industries, professional organizations, and regulatory

bodies.

Special Publications—Include proceedings of conferences sponsored by NBS, NBS annual reports, and other special publications

appropriate to this grouping such as wall charts, pocket cards, and

bibliographies.

Applied Mathematics Series—Mathematical tables, manuals, and

studies of special interest to physicists, engineers, chemists,

biologists, mathematicians, computer programmers, and others engaged in scientific and technical work.

National Standard Reference Data Series—Provides quantitative data on the physical and chemical properties of materials, compiled from the world’s literature and critically evaluated. Developed under a worldwide program coordinated by NBS under

the authority of the National Standard Data Act (Public Law

90-396).

NOTE: The principal publication outlet for the foregoing data is the Journal of Physical and Chemical Reference Data (JPCRD)

published quarterly for NBS by the American Chemical Society

(ACS) and the American Institute of Physics (AIP). Subscriptions,

reprints, and supplements available from ACS, 1 155 Sixteenth St., NW, Washington, DC 20056.

Building Science Series—Disseminates technical information

developed at the Bureau on building materials, components,

systems, and whole structures. The series presents research results,

test methods, and performance criteria related to the structural and

environmental functions and the durability and safely characteristics of building elements and systems.

Technical Notes—Studies or reports which are complete in themselves but restrictive in their treatment of a subject. Analogous to monographs but not so comprehensive in scope or definitive in treatment of the subject area. Often serve as a vehicle for final reports of work performed at NBS under the sponsorship of other government agencies.

Voluntary Product Standards—Developed under procedures

published by the Department of Commerce in Part 10, Title 15, of

the Code of Federal Regulations. The standards establish nationally recognized requirements for products, and provide all concerned interests with a basis for common understanding of the

characteristics of the products. NBS administers this program as a supplement to the activities of the private sector standardizing

organizations.

Consumer Information Series—Practical information, based on NBS research and experience, covering areas of interest to the con- sumer. Easily understandable language and illustrations provide

useful background knowledge for shopping in today’s tech- nological marketplace.

Order the above NBS publications from: Superintendent of Documents, Government Printing Office, Washington, DC 20402. Order the following NBS publications—FIPS and NBSIR's—from

the National Technical Information Services, Springfield. VA 22161

Federal Information Processing Standards Publications (FIPS

PUB)—Publications in this series collectively constitute the Federal Information Processing Standards Register. The Register

serves as the official source of information in the Federal Govern- ment regarding standards issued by NBS pursuant to the Federal Property and Administrative Services Act of 1949 as amended.

Public Law 89-306 (79 Stat. 1127), and as implemented by Executive Order 11717 (38 FR 12315, dated May 1 1, 1973) and Part 6 of Title 15 CFR (Code of Federal Regulations).

NBS Interagency Reports (NBSIR)—A special series of interim or

final reports on work performed by NBS for outside sponsors

(both government and non-government). In general, initial dis- tribution is handled by the sponsor; public distribution is by the National Technical Information Services, Springfield. VA 22161.

in paper copy or microfiche form.

BIBLIOGRAPHIC SUBSCRIPTION SERVICES

The following current-awareness and literature-survey bibliographies are issued periodically by the Bureau: Cryogenic Data Center Current Awareness Service. A literature sur- vey issued biweekly. Annual subscription: domestic $25; foreign

$30.

Liquefied Natural Gas. A literature survey issued quarterly. Annual

subscription: $20.

Superconducting Devices and Materials. A literature survey issued

quarterly. Annual subscription: $30. Please send subscription or- ders and remittances for the preceding bibliographic services to the National Bureau of Standards, Cryogenic Data Center (736)

Boulder, CO 80303.
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