A 1 1 1 1 S A b 1 b 4

NATL INST OF STANDARDS 4 TECH R.I.C.

„ All 101 586164

f

1mm/Selected tables of 3 A1.M65 SECT. 10 1983 V10 C.1 NSRDS 1965

NSRDS—NBS 3, Section 10

U.S. DEPARTMENT OF COMMERCE/National Bureau of Standards
NATIONAL BUREAU OF STANDARDS

The National Bureau of Standards' 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

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the Institute for Computer Sciences and Technology.

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'Headquarters and Laboratories at Gaithersburg, MD, unless otherwise noted; mailing address Washington, DC 20234. "Some divisions within the center are located at Boulder, CO 80303.
aAnor^L zrvzvj

o? srrxBMtD*

Selected Tables of Atomic Spectra

A Atomic Energy Levels - Second Edition

B Multiplet Table

OE

Data Derived from the Analyses of Optical Spectra

Charlotte E. Moore

Office of Standard Reference Data

National Bureau of Standards

Washington, DC 20234

U.S. Naval Research Laboratory

E. O. Hulburt Center for Space Research

Washington, DC 20375

U.S. DEPARTMENT OF COMMERCE, Malcolm Baldrige, Secretary

NATIONAL BUREAU OF STANDARDS. Ernest Ambler, Director

Issued March 1983
Library of Congress Catalog Card Number: 64-60074

NSRDS-NBS 3, Section 10

Natl. Stand. Ref. Data Ser., Natl. Bur. Stand. (U.S.), 3, Sec. 10, 21 pages (Mar. 1983)

CODEN: NSRDAP

© 1983 by the Secretary of Commerce on Behalf of the United States Government

U.S. GOVERNMENT PRINTING OFFICE

WASHINGTON: 1983

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402

Price $3.25

(Add 25 percent for other than U.S. mailing)
Abstract

The present publication is the tenth 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 10 includes these data for O iv.

The form of the presentation is described in detail in the text to Section I.

Key words: Atomic energy levels, O iv; atomic spectra, O iv; multiplet table, O IV; oxygen

spectra, O iv; spectrum O iv; wavelengths, O iv.

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 tenth 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, re- gardless of the order in which the separate spectra are published. Section 1 includes three

spectra of silicon, Z = 14: Si II, Si III, 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 vn. Section 5 completes the spectra of

nitrogen, N I, N II, N ill. Section 6 contains the spectra of hydrogen, Z- 1: H I, D, T. Section

7 contains the first spectrum of oxygen, Z = 8: O I, Section 8 the last three spectra of oxygen,

Z = 8: O vi, O vii, O viii, Section 9, contains O v. The present Section, 10, contains O iv. 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., February, 1982

V
'
Contents

Page Abstract Ill Foreword IV

Preface V

Part A-Atomic Energy Levels

Element: Z Spectrum

Oxygen: 8

O iv A8 iv-1 to A8 iv-4

Part B-Multiplet Table

Element: Z Spectrum

Oxygen: 8

O iv B8 iv-1 to B8 iv-7

VII
Errata

NSRDS-NBS 3, Section 4

Selected Tables of Atomic Spectra

Atomic Energy Levels and Multiplet Tables

N iv, N v, N vi, N vn

N iv

Part A, p. A7 iv-i In the second reference the authors should be listed as: D. J. Michels, S. G.

Part B, p. B7 iv-i Tilford, and J. W. Qwinn

Part A, p. A7 lV-2 Interchange the designations of the terms 487607.4 and 498045.5, i.e. 4s 3 S

and 3p' 3 S, respectively.

Corresponding corrections should be made in the designations of the

following Multiplets in Part B:

UV 5.04 UV 11.02 UV 18.57 UV 18.76 7.01

UV 5.07 UV 11.05 UV 18.60 UV 18.78 12.02

(letter from D. G. Hummer to D. J. Michels).

Part B, p. B7 iv-i Limit should read 624866. (W. C. Martin).

June 14, 1982

VIII
NSRDS-NBS 3, SECTION 10

OXYGEN Z=8

A O IV Atomic Energy Levels

B O iv Multiplet Table

Atomic Energy Levels

Part A OXYGEN

O iv (Z=8)

B I sequence: 5 electrons

Ground state Is2 2s2 2p

2P(°

)

1 /2

2p

2 P8>/2 624382.0 cm' 1

, 160.158 A (Vac) 77.416 eV

The analysis is quoted from the 1969 paper by Bromander, who has revised and extended

the earlier work. His observations made “with a theta-pinch discharge as a light source” cover the range 500 A - 8000 A. He includes 26 lines observed earlier by Palenius, who used a

sliding vacuum spark as a source, where they appeared sharper but weaker. A separate table

contains 39 classified lines between 202 A and 379 A used for the calculation of energy levels.

These wavelengths are taken from Edlen’s 1934 paper. The present revision includes a con- nection between doublet and quartet levels which determines a value of x = 262.5 cm -1

, to be added to the quartet terms as listed in “Atomic Energy Levels.”

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

to the hydrogen-like levels,” according to Bromander.

In 1975 B. Edlen published a paper on “The Oxygen Spectrum below 200 A and the High

Limit Terms of O iv.” This line list includes 71 lines of O iv and adds classifications for 26

lines between 200 A and 327 A. Twenty-five high-limit terms from the limits 2s 2p *P and

2p

2

( 3 P, *D, *S) have been added from this work.

In addition to investigations on the analysis of O iv, a few selected references on related

topics are listed below. Hansen’s paper deals with the relative transition probabilities of

forbidden transitions in the B I isoelectronic sequence. Lewis et al. and Martinson et al. report on radiative lifetimes of excited levels in oxygen spectra. Church and Liu give two “QuantumBeat g-Value Measurements on Transitions from Levels of Aligned Fast Ions” as follows:

3 d

4 F°3\2 1.26 ± 0.035

3p

4 D3

> /2 1.40 ± 0.035

References

B. Edlen, Nova Acta Reg. Soc. Sci. Uppsala [IV] 9, No. 6, 87-102 (1934). I P, T, C L, G D, W L

H. P. Palenius, Ark. Fys. 34, No. 45, 571-572 (1967). C L

J. Bromander, Ark. Fys. 40, No. 23, 257-274 (1969). I P, T, C L, G D

M. R. Lewis, F. S. Zimnock, and G. W. Wares, Phys. Rev. 178, No. 1, 49-54 (1969). C L

J. E. Hansen, J. Opt. Soc. Am. 59, No. 6, 722-726 (1969). T

I. Martinson, H. G. Berry, W. S. Bickel, and H. Oona, J. Opt. Soc. Am. 61, No. 4, 519-523 (1971). C L

D. A. Church and C. H. Liu, Physica 67, 90-112 (1973). Z E

B. Edl6n, Physica Scripta 11, 366-370 (1975). T, C L

A8 IV-1
Atomic Energy Levels

O IVO iv

Config. Desig.

J

2s2 ( 1 S)2p 2p 2 P° OV2 IV2

2s 2p2 2p2 4 P OV2 1 V2 2V2

2s 2p2 2p2 2 D 202 102

2s 2p2 2p2 2 S 002

2s 2p2 2p2 2 P OO2

102 2p3 2p3 4 S° 102 2p3 2p3 2 D° 202 102 2p3 CO to tjo OO2

102

2s2 ( 1 S)3s 3s 2 S 0 02

2s2 ( 1 S)3p 3p 2 P° 002

102

2s2 ( 1 S)3c/ 3d 2 D 102 202

2s 2p( 3 P°)3s 3s' 4 P° 002

102 202

2s 2p( 3 P°)3s 3s' 2 P° 0 V2 1 V2

2s 2p( 3 P°)3p 3

p' 2 P 002 1 V2

2s 2p( 3 P°)3p 3

p' 4 D 002

102 202 3 V2

2s 2p( 3 P°)3p 3p' 4 S 102

2s 2p( 3 P°)3p 3p' 4 P OO2

102 2V2

2s 2p( 3 P°)3p 3p' 2 D 102 202

2s2 ( 1 S)4s 4s 2 S ov2

2s 2p( 3 P°)3p 3

p' 2 S 002

2s 2p( 3 P°)3c/ 3c/' 4 F° 102 2 O2 3 O2 4V2

2s 2p( 3 P°)3c/ 3c/' 4 D° 002

102 202 3 O2

Level

0.0

385.9

71439.8

71570.1

71755.5

126936.3

126950.2

164366.4

180480.8

180724.2

231537.5

255155.9

255184.9

289015.4

289023.5

357614.3

3901612

390248.0

419533.9

419550.6

438849.0

438983.9

439230.9

452806.6

453071.5

467229.3

467344.9

468337.4

468414.9

468550.6

468760.0

474478.1

478848.6

478942.9

479072.0

482666.1

482921.6

485821.7

492890.9

495169

495246.1

495359.6

495512.9

4997672

499795.7

499842.6

499907.0

Interval Config. Desig.

J Level Interval

385.9

2s2 ( 1 S)4p 4p 2 p° OV2 499994.9

42.9

IV2 500037.8

130.3

2s 2p( 3 P°)3c/ 3c/' 2 D° 102 5015092

55.2 202

501564.4

185.4

2s 2p( 3 P°)3cZ 3c/' 4 p° 2O2 504095.7 -113 2

-13.9

D/2 504208.9 -73.4 0 1 /2 504282.3

2s2 ( 1 S)4cZ 4c/ 2 D 102 510569.7

4.4

202 510574.1

243.4

2s 2p( 3 P°)3cZ 3c/' 2 po 2 O2 510744.9

232.3 3 V2 5109772

-29.0

2s2 ( 1 S)4/’ 4A 2 po 202 5131872

11.1

3V2 513198.3

8.1

2s 2p( 3 P°)3c/ 3c/' 2po 1V2 OV2 514220.4

514371.3

-150.9

2s2p( 1 P°)3s 3s" 2p° ov2 518699

10 1 V2 518709

86.8 2s2 ( 1 S)5s 5s 2 S 0 V2 539368

16.7

2s2 ( 1 S)5p 5p 2 p° 0V2 546803.4

15.3 1 V2 546818.7

2s 2p( 1 P°)3p 3p" 2 D 1V2 547326

29 134.9 2 V2 547355

247.0

2s 2p( 1 P°)3p 3p" 2 P 0 V2 549792

63

1V2 549855

264.9

2s2 ( 1 S)5c/ 5d 2 D 1V2 552029.6

2.7

202 552032.3

115.6

2s2 ( 1 S)5/~ 5f 2 po 202 }

552495.1 3 V2 77.5

135.7 2s2 ( 1 S)5g 5 2 G 3 V2 f 554001.6

209.4 4X /2

J

2s2p( 1 P°)3p 3p" 2 S OV2 554464

2s 2p(3 P°)4s 4s' 4 p° OV2 568901

135

247 94.3 IV2 569036

129.1 2V2 569283

2s2p( 1 P°)3c/ CO 2 p° 2V2 255.5 3 x /2 570797

2s 2p( 3 P°)4s 4s' 2 po 0J /2 573696

211

IV2 573901

2s2 ( 1 S)6c/ 6d 2 D IV2 }

574368.7 2 l /2 77

113.5 2s2 ( 1 S)6/ 6f 2 po 202 f 574807.7

153.3 3 X /2

J

2s 2p( 3 P°)4p 4p' 2 P 0 V2 575202

173

28.5 1V2 575375

46.9

64.4

2s2 ( 1 S)6g 6# 2 G 3 V2 4V2 }

575507.4

A8 IV-2
Atomic Energy Levels

O iv—Continued O IV—Continued

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

2s2

(

1 S)6/z 6h 2 H° 4‘A

}

575585.0 2p2

( 3 P)3p 3p"' 2 S° 0 d2 597256

5V2 2s 2p( 3 P°)4c/ 4d' 2 P° 1 V2 597720 -149

2s 2p( 1 P°)3c? 3d" 2 D° 1V2 575819

34 0 V2 597869

2>/2 575853

2p2 (>D)3s 3sIV 2 D da 600092

14

2p2

( 3 P)3s 3s'"

4 P OV2 576853

144

2>/2 600106

I 1/2 576997

2d2 577209

212 2p2

( 3 P)3p 3p"' 4 D° OV2 IV2 602962

115

150

2s 2p( l P°)3d 3d" 2p° 0 V2

1 V2 581721581743

22

2>/2 3^/2 603077

603227

2s 2p( 3 P°)4p 4

P' 2 D 1 V2 584541

220 2p2

( 3 P)3p 3p"' 4 P° OV2 606530

48

116

2V2 584761 IV2 606578

2s2

( 1 S)7/i Ih 2 H° 4V2 }

588529.1

202 606694

5V2 2p2

( 3 P)3p 3p"' 2 D° 2 V2 615431 -29

2s2

( 1 S)7i li 2

I 5V2 }

588546.1

IV2 615460

6 V2 2p2

( 3 P)3p 3

p'" 4 S° IV2 616881

2s 2p( 3 P°)4p 4

p' 2 S OV2 590069 O v 2s

2 Limit 624382.0

2s 2p( 3 P°)4c? Ad' 4 D° OV2 IV2 }

591899 - 2p2

(

4 D)3p 3p

IV 2 F° 2 V2 3V2 }

624876

2Vs 591962 63

2s 2p( 3 P°)5p 5p' 2 P 3dz 592046 84 OV2 IV2 628539

2s 2p( 3 P°)4d Ad' 4po 2V2 593273 -133 2s 2p( 3 P°)5p 5p' 2 D IV2 593406 id2 630648

231

OV2 593473

-67 2 d2 630879

2s 2p( 3 P°)4<7 Ad' 2 D° IV2 2V2 593627

593708

81

2p2

(

! D)3p 3pIV 2 D° id2 2 d2 631913

2s 2p( 3 P°)4/' 4

r

4 F 1 V2 2 V2

593948.7

593961.9

13.2

30.9

52.1

2p2

( 3 P)3o? 3d'" 2 P 1 V2 ov2 632426

632597

-171

3d2 593992.8 2s 2p( 3 P°)5<7 5d' 4 D° 0 V2 Ad2 594044.9 1 V2

2s 2p( 3 P°)4/’ 4r

2 F 2d2 594019

55

2 V2 634182 3 V2 594074 3 V2

2p2

( 3 P)3s 3s'"

2 P 0V2 594340

198

2s 2p( 3 P°)5cf 5d' 4 P° 2 V2 634523 -99

1 V2 594538 1 V2 634622 -31

0 V2 634653

2s 2p( 3 P°)4c? Ad' 2p° 2 V2 596295

180 2s 2p( 3 P°)5d 5d' 2 F° 3 V2 596475 2 1/2 636058

175 3V2 636233

2s 2p( 3 P°)4/’ 4r

4 G 2d2 596330

72 2p2

( 3 P)3rf 3d’" 4 P

3d2 596402 2 V2 637113 -99

Ad2 596510

108 IV2 637212 -62

3d2 596655

145 0>/2 637274

2s 2p( 3 P°)4/’ 4

r

4 D 3 V2 2d2

596331

596444

-113

-68

-53.8

2p2 (‘D)3rf 3o?lv 2G 3*/2 4*/2 }

643642

1 V2 0 V2

596512.4

596566.2

2p2

( 3 P)3cf 3d'" 2 D IV2 2V2 } 646859

2s 2p( 3 P°)4/' 4r

2 G 3>/2 596631.9

215.7 2p2 (‘D)3o? 3dIV 2 F 2>/2 651098

19 4V2 596847.6 3>/2 651117

2s 2p(3 P°)4/' 4

r

2 D 2 V2 596658.3 -139.9 2p2('D)3rf 3dIV 2 D 2 V2 653328 -83

1 V2 596798.2 l »/2 653411

A8 iv-3
Atomic Energy Levels

O iv—Continued O iv—Continued

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

2s 2p( 3 P°)6a? 6d' 4 D° 0V2 IV2 0 v 2s 2p 3 P° Limit 0

1 706321.2706457.3

136.1

306.7

2Va 2 706764.0

3V2 656591 2p2

( 1 S)3d 3dw 2 D IV2 2V2 }

706333

2s2p( 1 P°)4p 4p" 2 D IV2 656745

42

2V2 656787 2p2

( 3 P)4p 4p"' 4 D° OV2

2s 2p( 3 P°)6d 6d' 4 P° 2V2 IV2 656769

656889

-120

IV2 2V2 713033

OV2 3V2

2s 2p( 3 P°)6d 6d' 2F° 2V2 657471

236

0 v 2s 2p 1 P° Limit 1 783180

3V2 657707 0 v 2p2 3 P Limit 838129

2p2

( 1 D)3c? 3d

lw 2P OV2 }

659998 0 v 2

p

2 4 D Limit 2 856103

IV2 0 v 2p2 4 S Limit 0 912292

2s 2p( 1 P°)4d 4d" 2 D° 2V2 668553 A IV2 668557

February 1982.

O iv Observed Terms

A8 IV-4
Multiplet Table

Part B OXYGEN

O iv (Z= 8)

I P 77.4165 ev Limit 624382.0 cm

~ 1 160.158 A (VAC)

Anal A List A February 1982

References

A J. Bromander, Ark. Fys. 40, No. 23, 257-274 (1969), I P, T, C L, I, G D; W L 202 A-7713 A.

B H. P. Palenius, See Ref. A Table 1; Ark Fys. 34, No. 45, 571-572 (1967). C L; W L 553 A-1343 A.

C B. Edlen, Physica Scripta. 11, 366-370 (1975). T, C L, I; W L 152 A-327 A.

D B. Edlen, Nova Acta Reg. Soc. Sci. Uppsala I IV]9, No. 6, 87-102 (1934). I P, T, C L,(I,) G D; W L 152 A-3563 A.

E B. Edlen, Zeit. Phys. 93, 726-730 (1-935). C L, (I); W L 251 A-255 A quoted.

P Predicted Lines

New Multiplet Numbers not inserted between older ones start with UV 10 and 16; (13 and 15

rejected).

m Masked

t Raie Ultime

* Blend

* and § Blend of O iv and 0 hi

* and t Blend of O iv and O ii

* and §§ Blend of O iv and Si in

B8 IV—

1
Multiplet Table

O iv O iv

I A Ref. Int. EP

J

Multiplet

No.

I A Ref. Int. E P

J

Multiplet

Low No. High Low High

Vac Vac

1401.156 A 7 0.05 8.90 U/2—2V2 2p 2 P°-2p2

4

P *182.827 C 5 0.05 67.86 IV2—2V2 2

P

2 P°-3p" 2 D

1397.20 A 3* 0.00 8.87 OV2— U/2 UV0.01 182.706 C 4 0.00 67.86 OV2— U/2 UV 5.10

1404.812 A 4 0.05 8.87 IV2— IV2 *182.827 C 5 0.05 67.86 U/2- U/2

1399.774 A 5 0.00 8.86 OV2—OV2

1407.386 A 5 0.05 8.86 U/2—OV2

181.994 C 4 0.05 68.17 U/2-U/2 2p 2P°-3p" 2P

181.887 C 3 0.00 68.16 0 V2—0 V2 UV 5.11

790.199 B 21 0.05 15.74 IV2-2V2 2p 2P°-2p2

2

D 182.015 C 2 0.05 68.16 u/2—OV2

787.711 B 20 0.00 15.74 OV2— U/2 UV 1 181.866 C 2 0.00 68.17 OV2— 1V2

790.109 B 18 0.05 15.74 IV2-IV2

*181.277 C 6 0.05 68.44 1V2—2V2 2p 2 P°-5cf 2 D

609.829 B 20 0.05 20.38 IV2—OV2 2p 2P°-2p2

2

S 181.150 C 5 0.00 68.44 OV2— u/2 UV 5.12

608.398 B 19 0.00 20.38 OV2—OV2 UV 2 *181.277 C 6 0.05 68.44 u/2- u/2

554.5141; B 23 0.05 22.41 U/2- U/2 2p 2 P°-2p2

2

P 180.480 C 3 0.05 68.74 1V2—0V2 2p 2P°-3p" 2 S

554.075 B 22 0.00 22.38 OV2—

0

V2 UV 3 180.354 c 2 0.00 68.74 OV2—OV2 UV 5.13

555.261 B 21 0.05 22.38 IV2-OV2

553.330 B 21 0.00 22.41 OV2— 1 V2

*174.221 c 3d 0.05 71.21 U/2-2V2 2p 2P°-6cf 2 D

174.105 c 2d 0.00 71.21 OV2— 1V2 UV 5.14

279.937 D (11) 0.05 44.34 U/2-OV2 2p 2P°-3s 2 S *174.221 c 3d 0.05 71.21 u/2- u/2

279.633 D (10) 0.00 44.34 0V2

0

1/2 UV 4

173.916 c 3 0.05 71.34 u/2- u/2 2p 2 P°-4p' 2 P

238.573 D (15) 0.05 52.02 U/2-2V2 2p 2 P°-3d 2 D 173.852 c 2 0.00 71.31 OV2—0V2 UV 5.15

238.361 D (14) 0.00 52.01 0 V2— 1V2 UV 5 173.969 c 1 0.05 71.31 u/2

0 V2

173.799 c 1 0.00 71.34 0

1 /2— 1 V2

214.155 D (6) 0.05 57.94 u/2- u/2 2p 2 P°-3p' 2 P

214.032 D (5) 0.00 57.93 0V2—0V2 UV 5.01 173.363 p 0.05 71.56 U/2-2V2 2p 2 P°—3s " 4 P

214.209 D (4) 0.05 57.93 1V2—0V2 173.311 p 0.00 71.54 0V2— 1V2 UV 5.16

213.978 D (4) 0.00 57.94 0V2—1V2 173.427 p 0.05 71.54 u/2- u/2

173.354 p 0.00 71.52 OV2—0V2

213.600 P 0.05 58.09 u/2—2V2 2p 2 P°-3p' 4 D

173.470 p 0.05 71.52 U/2-OV2

213.486 P 0.00 58.07 0V2—u/2 UV 5.02

217.254 P 0.05 58.07 u/2- u/2 171.123 c 4 0.05 72.50 11/2-2V2 2p 2 P°-4p' 2 D

213.521 P 0.00 58.06 OV2-OV2 171.074 c 3 0.00 72.47 0V2— 1V2 UV 5.17

213.697 P 0.05 58.06 1V2—OV2 171.188 c 1 0.05 72.47 1V2-U/2

210.929 P 0.05 58.83 u/2— u/2 2p 2 P°-3p' 4 S 169.582 c 1 0.05 73.16 1V2—0V2 2p 2 P°-4p' 2 S

210.758 P 0.00 58.83 OV2-U/2 UV 5.03 169.474 c 0 0.00 73.16 OV2-OV2 UV 5.18

208.905 P 0.05 59.40 1 1/2-2 V2 2p 2 P°-3p' 4P 168.306 c 1 0.05 73.71 11/2-1V2 2p 2 P°-3s'" 2P

208.793 P 0.00 59.38 0V2— u/2 UV 5.04 168.254 p 0.00 73.69 OV2—OV2 UV 5.19

208.957 P 0.05 59.38 u/2— u/2

208.834 P 0.00 59.37 0

1

/2—OV2

166.741 c 0 0.05 74.40 11/2-2V2 2p 2 P°-3sIV 2 D

209.003 P 0.05 59.37 1 V:2—OV2

166.641 p 0.00 74.40 0

i /2— U/2 UV 5.20

166.776 p 0.05 74.40 1V2-1V2

207.239 D (7) 0.05 59.87 1 1/

2

—21/2 2p

2P°-3p' 2 D

207.183 D (6) 0.00 59.84 OV2— IV2 UV 5.05

159.197 c 0 0.05 77.93 U/2-

U

/2 2p 2 P°-5p' 2 P

TT17 C 0-1 207.348 D (4) 0.05 59.84 1

1 /2- IV2

U V 5.21

206.002 D (1) 0.05 60.23 IV2—OV2 2

p

2 P°-4s 2 S

158.606 c 2 0.05 78.22 1V2-2V2 2p 2 P°-5p' 2D

205.842 D (0) 0.00 60.23 0!/2—OV2 UV 5.06

158.567 c 1 0.00 78.19 OV2— U/2 UV 5.22

203.048 D (5) 0.05 61.11 1 !/2 —0

1 /2 2p 2 P°-3p' 2S

158.218 p 0.05 78.41 U/2-

U

/2 2p 2 P°-3rf" 2 P

202.891 D (4) 0.00 61.11 01 /2—0

1 /2 UV 5.07

158.079 p 0.00 78.43 0

X /2—OV2 UV 5.23

*196.009 C 9 0.05 63.30 1

1/2-21/2 2p

2 P°-4gZ 2 D

154.681 c 1 0.05 80.20 1V2-2V2 2p 2P°-3c/"' 2 D

195.863 C 8 0.00 63.30 O1/2— 1 1/2 UV 5.08

154.590 c 0 0.00 80.20 OV2— IV2 UV 5.24

*196.009 C 9 0.05 63.30 1

1 /2- 11/2 153.151 c 2d 0.05 81.00 1^/2—2 V2 2p 2P°-3c/IV2D?

185.535 c 2 0.05 66.87 IV2—OV2 2p 2 P°-5s 2 S

153.043 p 0.00 81.01 OV2— U/2 UV 5.25

185.402 c 1 0.00 66.87 OV2—OV2 UV 5.09

B8 iv-2
Multiplet Table

O iv—Continued O iv—Continued

I A Ref. Int. E P

J

Multiplet

No.

I A Ref. Int. E P

J

Multiplet

No. Low High Low High

Vac Vac

152.346 G 2 0.05 81.43 1 02-272 2p 2 P°-4p" 2 D 191.748 C 4 8.90 73.55 2

1 /2-21 /2 2p2 4 P -4d' 4 P

152.266 C 1 0.00 81.42 072— 1 72 UV 5.26 191.631 C 2 8.87 73,57 V/2-V/2 UV 7.04

ml91.559 P O v 8.86 73.58 OO2—OO2 151.604 P 0.05 81.83 172- 2p

2 P°-3dIV2 P

191.699 c 3 8.90 73.57 2 O2— 1 02 151.516 P 0.00 81.83 072— UV 5.27

191.607 C 3 8.87 73.58 U/2-OO2 141.654 P 0.05 87.57 172- 2p 2P°-3dV2D? 191.680 C 2 8.87 73.55 U/2—202

141.576 P 0.00 87.57 072— UV 5.28 191.583 C 2 8.86 73.57 0O2-U/2

*188.151 C 3 8.90 74.79 2

1 /2-3 1 /2 2p2 4 P -3p'" 4 D"

625.852 B 20 8.90 28.71 272-172 2p2 4 P -2p3 4 S° *188.151 C 3 8.87 74.77 U/2-2 V2 UV 7.05

625.130 B 19 8.87 28.71 172-172 UV 6 *188.151 C 3 8.86 74.76 OO2—U/2 624.617 B 18 8.86 28.71 072—172 188.210 C 0 8.90 74.77 2V2—2V2 272.125 A 7 8.90 54.46 272-272 2p2 4 P -3s' 4 P° 188.185 C 0 8.87 74.76 U/2—IV2 *272.174 D (5) 8.87 54.43 172-172 UV 6.01 *186.935 c 3 8.90 75.22 2V2-2V2 2p2 4 P -3p"' 4 P°

*272.174 D (5) 8.86 54.41 072—072 *186.870 c 2 8.87 75.20 U/2—

U

/2 UV 7.06

272.311 A 6 8.90 54.43 272-172 186.884 p 8.86 75.20 0

1 /2-0 1/2 272.270 A 6 8.87 54.41 172—072 186.978 c 1 8.90 75.20 2V2-U/2

271.989 A 6 8.87 54.46 172-272 *186.935 c 3 8.87 75.20 U/2—0V2

272.076 A 6 8.86 54.43 072— 1 72 - *186.870 c 2 8.87 75.22 U/2-2V2

233.561 D (8) 8.90 61.98 272—372 2p2 4 P -3d' 4 D° *186.870 c 2 8.86 75.20 0V2— U/2

233.495 D (7) 8.87 61.97 172-272 UV 7 183.444 c 2 8.90 76.48 2V2-U/2 2p2 4 P -3p"' 4 S°

*233.457 D (7-) 8.86 61.97 072—172 183.382 c 2 8.87 76.48 U/2-U/2 UV 7.07

233.596 D (6) 8.90 61.97 272-272 183.338 c 1 8.86 76.48 OV2-U/2 233.521 D (6) 8.87 61.97 172-172

*233.457 D (7-) 8.86 61.96 072—072 *177.801 c 3d 8.90 78.63 2

1 /2-3 1 /2 2p2 4 P -5d' 4 D°

m233.623 P 0 iv 8.90 61.97 272-172 177.762 c 2 8.87 78.63 UV 7.08

m233.537 P 0 iv 8.87 61.96 172-072

177.693 c 2 8.90 78.67 202-202 2p2 4 P -5d' 4 P

C 231.302 A 7 8.90 62.50 272-272 2p2 4 P -3d' 4 P° 177.603 p 8.87 78.68 U/2- U/2 UV 7.09

231.144 A 4 8.87 62.51 172-172 UV 7.01 177.553 p 8.86 78.68 OO2—OO2 231.031 A 3 8.86 62.52 072-072 177.662 c 1 8.90 78.68 2O2-IO2 231.240 A 6 8.90 62.51 272-172 177.594 c 1 8.87 78.68 IO2—OO2 231.101 A 6 8.87 62.52 172—072 177.635 p 8.87 78.67 IO2—2 O2 231.200 A 6 8.87 62.50 1 72—272 177.562 c 1 8.86 78.68 OO2— IO2 231.070 D (7) 8.86 62.51 072-172

*170.988 c 2d 8.90 81.40 202-302 2p2 4 P -6d' 4 D

C 200.995 D (2) 8.90 70.58 272-272 2p2 4 P -4s' 4 P° UV 7.10

*201.022 D (0) 8.87 70.55 172-172 UV 7.02 *170.935 c Id 8.90 81.43 202-202 2p2 4 P -6d' 4 P

C *201.022 D (0) 8.86 70.53 072-072

*170.847 c 0 8.87 81.44 UV7.11

201.098 D (1) 8.90 70.55 272-172

201.073 D (1-) 8.87 70.53 172—072 155.911 c Id 8.90 88.40 2p2 4 P -4p" 4 D

C 200.915 D (1) 8.87 70.58 172-272 UV 7.12

200.966 D (1-) 8.86 70.55 072-172

192.200 C 6 8.90 73.40 272-372 2p2 4 P -4d' 4 D°

779.912 B 15 15.74 31.63 202-202 2p2 2 D -2p3 2 D

C 779 821 B 14 15.74 31.64 ll/2-U/2 UV 8

192.163 C 5 8.87 73.39 172—272 UV 7.03

779 734 B 11 15.74 31.64 202-U/2

*192.138 c 4 8.86 73.38 072—1 72 779 997 B 11 15.74 31.63 1 02—202

192.231 c 3 8.90 73.39 272-272

*192.186 p 8.87 73.38 172-172 616.952 B 13 15.74 35.83 202-102 2p2 2 D -2p3 a F

*192.138 c 4 8.86 73.38 072-072 m617.036 P O ii 15.74 35.83 102-002 UV 8.01

192.256 p 8.90 73.38 272-172 m617.005 P On 15.74 35.83 U/2-U/2

*192.186 p 8.87 73.38 172—072

*379.775 D (4) 15.74 48.38 202-U/2 2p2 2 D -3p 2 P

379.919 D (3) 15.74 48.37 U/2-002 UV 8.02

*379.775 D (4) 15.74 48.38 U/2- U/2

B8 iv-3
Multiplet Table

O IV

Continued O IV

Continued

I A Ref. Int. E P

J

Multiplet

No.

I A Ref. Int. E PJ

Multiplet

No. Low High Low High

Vac Vac

*306.621 D (8) 15.74 56.17 2 V2-IV2 2p2 2 D -3s' 2 P° 285.838 D (7) 20.38 63.75 OV2-IV2 2p2 2S -3d' 2 P°

306.882 D (7) 15.74 56.14 IV2—OV2 UV 8.03 285.714 D (6) 20.38 63.77 OV2-OV2 UV 13

*306.621 D (8) 15.74 56.17 U/2-

U

/2 282.213 D (1) 20.38 64.31 OV2— U/2 2p2 2 S -3s" 2P°

*266.932 D (6) 15.74 62.18 2 V2-2 V2 2p2 2 D -3d' 2 D° UV 14

*266.967 D (5) 15.74 62.18 U/2-

U

/2 UV 8.04

*266.967 D (5) 15.74 62.18 2V2-IV2 239.592 D (3) 20.38 72.13 OV2—IV2 2p2 2 S -3d" 2 P°

T TA7 1C

*266.932 D (6) 15.74 62.18 IV2-2 V2 U V 15

260.389 D GO) 15.74 63.35 2

1 /2-3 1 /2 2p2 2 D -3d' 2 F°

230.755 D (2) 20.38 74.11 OV2—U/2 2p2 2 S -4d' 2 P°

*260.556 D (9) 15.74 63.32 IV2-2 V2 UV 9

230.682 D (1) 20.38 74.12 OV2—OV2 UV 16

*260.556 D (9) 15.74 63.32 2 V2—2 V2 1343.512 B 12 22.41 31.63 IV2-2 V2 2p2 2 P -2p3 2 D

C *258.207 D (3) 15.74 63.75 2V2-IV2 2p2 2 D -3d' 2 P° 1338.612 B 11 22.38 31.64 OV2-IV2 UV 17

258.116 D (2) 15.74 63.77 IV2—OV2 UV 9.01 1342.992 B 9 22.41 31.64 U/2-U/2

*258.207 D (3) 15.74 63.75 U/2-

U

/2 923.367 B 11 22.41 35.83 U/2- U/2 2p2 2 P -2p3 2 P°

255.252 D (5) 15.74 64.31 2p2 2 D -3s" 2 P° 921.366 B 10 22.38 35.83 OV2—OV2 UV 18

UV 9.02 923.433 B 9 22.41 35.83 IV2—OV2 234.988 D (3) 15.74 68.50 2p2 2 D -5/ 2 F°

921.296 B 9 22.38 35.83 OV2— U/2 UV 9.03 367.192 D (2) 22.41 56.17 2p2 2P -3s' 2 P°

225.299 D (5) 15.74 70.77 2 V2-3 V2 2p

2 2 D -3d" 2F°

UV 19

UV 9.04 311.679 D (6) 22.41 62.18 U/2-2V2 2p2 2 P -3d' 2 D°

223.728 D (0) 15.74 71.15 2 V2-IV2 2p2 2 D -4s' 2P°

311.490 D (5) 22.38 62.18 0V2—1V2 UV 20

223.841 D (0-) 15.74 71.13 U/2-OV2 UV 9.05

311.726 D (3) 22.41 62.18 U/2—

U

/2

222.763 D (5) 15.74 71.39 2 V2-2 V2 2p

2 2 D -3d" 2 D°

299.850 D (4) 22.41 63.75 1 1/2- U/2 2p2 2 P -3d' 2 P°

222.777 D (4) 15.74 71.39 U/2-

U

/2 UV 9.06

299.495 D (3) 22.38 63.77 0

1 /2-0 1 /2 UV 21

299.710 D (2) 22.41 63.77 1 d2—0 V2 214.249 D (1) 15.74 73.61 2V2-2 V2 2p2 2 D -4d' 2 D° 299.620 D (2) 22.38 63.75 OV2— IV2 214.290 D (1-) 15.74 73.60 U/2— U/2 UV 9.07

295.874 D (2) 22.41 64.31 U/2-U/2 2p2 2 P -3s" 2P°

212.974 D (3) 15.74 73.95 2V2-3 V2 2p2 2 D -4d' 2F° UV 22

213.061 D (2-)d 15.74 73.93 IV2-2 V2 UV 9.08

253.082 D (7) 22.41 71.39 U/2-2V2 2p2 2 P -3d” 2 D°

204.708 D (0 )d 15.74 76.30 2p2 2 D -3p'" 2 D° 252.948 D (6) 22.38 71.39 0V2—IV2 UV 23

UV 9.09

249.365 D (4) 22.41 72.13 U/2-U/2 2p2 2 P -3d" 2 P°

200.830 G (2 )bd 15.74 77.47 2p2 2D-3pIV 2 F° 249.223 D (3) 22.38 72.12 OV2—OV2 UV 24

UV 9.10

242.140 D (3) 22.41 73.61 U/2-2V2 2p2 2 P -4d' 2D°

198.031 C 4 15.74 78.35 2p2 2 D-3pIV 2D° 242.045 D (2) 22.38 73.60 0 to" 1 to UV 25

UV9.11 242.183 D (0) 22.41 73.60 U/2-U/2

196.349 C 2d 15.74 78.88 2V2-3 V2 2p

2 2 D -5d' 2 F° 240.079 D (1) 22.41 74.05 U/2-0V2 2p2 2 P -3p'" 2S°

196.432 C Id 15.74 78.86 IV2-2 V2 UV 9.12 239.935 D (0) 22.38 74.05 OV2—0V2 UV 26

188.405 C Id 15.74 81.51 2V2—3 V2 2p2 2 D -6d' 2 F° 230.040 D (0) 22.41 76.30 IV2—2 V2 2

p

2 2 P -3p'" 2D°

188.494 c 0d 15.74 81.54 IV2-2V2 UV 9.13 229.896 D (0) 22.38 76.31 OV2-U/2 UV 27

204.996 D (0) 22.41 82.89 U/2-2V2 2

p

2 2 P -4d" 2D°

802.200 B 11 20.38 35.83 0V2 — 1

x /2 2p2 2 S -2p3 2P°

204.905 D (0-) 22.38 82.89 OV2—

U

/2 UV 28

802.255 B 10 20.38 35.83 OV2-OV2 UV 10

442.705 D (1) 20.38 48.38 OV2-IV2 2p2 2 S-3p

2P° 289.292 D (3) 28.71 71.56 U/2-2V2 2p3 4 S°-3s"' 4 P

442.873 D (0) 20.38 48.37 OV2-OV2 UV 11 289.469 D (2) 28.71 71.54 U/2-U/2 UV 29

289.590 D (1) 28.71 71.52 U/2-OV2 346.372 D (4) 20.38 56.17 0 to" 1 I—4

to" 2p2 2 S -3s' 2 P°

346.688 D (3) 20.38 56.14 01 /2— 0V2 UV 12

B8 iv-4
Multiplet Table

O IV—Continued O iv—Continued

I A Ref. Int. E P

J

Multiplet

No.

I A Ref. Int. E P

J

Multiplet

Low No. High Low High

Vac Vac

246.563 D (4) 28.71 78.99 IV2-2 V2 2p3 4 S°-3d'" 4 P 618.107 A 4 48.38 68.44 IV2-2 V2 3p 2 P-5d 2 D

246.503 D (3) 28.71 79.00 U/2-

U

/2 UV 30 617.786 A 3 48.37 68.44 0 V2— U/2 UV 47

246.465 D (2) 28.71 79.01 U/2—OV2 543.118 A 2 48.38 71.21 IV2- 3p 2 P-6d 2 D

542.859 A 1 48.37 71.21 OV2— 1

V

2 UV 48

471.273 D (1) 31.63 57.94 2 V2-IV2 2p3 2 D°-3p' 2 P

471.603 D (0) 31.64 57.93 U/2-OV2 UV 31

*1067.810 A 9 52.02 63.63 2

1 /2-3 1 /2 3d 2 D-4/’ 2 F°

339.330 D (1) 31.63 68.17 2 V2-IV2 2p3 2 D°-3p" 2 P *1067.810 A 9 52.01 63.63 1 */2—2 '/2 UV 49

339.436 D (0) 31.64 68.16 IV2-OV2 UV 32

752.150 A 2h 52.02 68.50 3d 2 D -5/" 2 F°

295.051 D (1) 31.63 73.65 2 V2—3V2 2p3 2 D°-4f 2F UV 50

295.140 D (1-) 31.64 73.65 U/2—2 V2 UV 33

294.650 D (1 + ) 31.63 73.71 2V2-H/2 2p3 2 D°-3s'" 2 P

Air

294.853 D (1 + ) 31.64 73.69 IV2—OV2 UV 34

3385.52 A 15 54.46 58.12 2

1 /2-31/2 3s' 4 P°-3p' 4 D

*3381.20 A 15 54.43 58.09 U/2—

2

1 /2 3

289.898 D (2) 31.63 74.40 2V2-2 V2 2p3 2 D°-3slv 2 D *3381.20 A 15 54.41 58.07 0V2— U/2 289.933 D (1) 31.64 74.40 U/2-U/2 UV 35 *3409. 66§ A 12 54.46 58.09 2 V2—

2

l /2 3396.79 A 13 54.43 58.07 U/2-

U

/2 265.062 D (0) 31.63 78.41 2p3 2 D°-3d"' 2 P

m3390.19 P On 54.41 58.06 0V2—OV2 UV 36 3425.57 A 9 54.46 58.07 2V2-IV2 255.302 E (0) 31.63 80.20 2p3 2 D°-3d'" 2 D m3405.78 P O hi 54.43 58.06 U/2—OV2 UV 37 2836.26 A 10 54.46 58.83 2V2-IV2 3s' 4 P°-3p' 4 S

252.550 E (6)*d 31.63 80.73 2V2-3V2 2p3 2 D°-3dIV2F 2816.56 A 9 54.43 58.83 U/2—IV2 UV 51

252.581 E (6)*d 31.64 80.72 1 V2—2 V2 UV 38 2805.84 A 8 54.41 58.83 OV2-U/2

251.148 E (1 + ) 31.63 81.00 2 V2—2 V2 2p3 2 D°-3dIV2D 2509.19 A 12 54.46 59.40 2 V2-2V2 3s' 4 P°-3p' 4 P

251.114 E (1) 31.64 81.01 U/2-

U

/2 UV 39 2501.81 A 7 54.43 59.38 U/2-U/2 UV 52

2499.28 A 7 54.41 59.37 OV2—OV2 327.320 D (1) 35.83 73.71 U/2-

U

/2 2p3 2P°-3s"' 2 P

*2517. 2t A 11 54.46 59.38 2 V2-U/2 327.519 D (0) 35.83 73.69 OV2—OV2 UV 40 2507.73 A 11 54.43 59.37 U/2—OV2 2493.77 A 11 54.43 59.40 I

l l2—2 l l2 321.457 D (1) 35.83 74.40 2p3 2 P°-3sIV 2 D 2493.44 A 11 54.41 59.38 0V2— IV2 UV 41

291.203 D (1 + ) 35.83 78.41 IV2-IV2 2p3 2 P°-3d'" 2 P 7004.14 A 4h 56.17 57.94 1V2-U/2 3s’ 2 F-3p' 2 P

291.054 D (1) 35.83 78.43 OV2-OV2 UV 42 6931.55 A 2h 56.14 57.93 0

1 /2-0 1 /2 3.01

7061.16 A lh 56.17 57.93 1 V2—0 V2 279.456 E (2) 35.83 80.20 2p3 2 P°-3d"' 2 D 6876.43 A lh 56.14 57.94 OV2-U/2 UV 43

3349.11 A 13 56.17 59.87 l

l /2—2 1 /2 3s' 2 P-3p' 2 D

269.559 D (1 )d 35.83 81.83 2p3 2 P°-3dIV2 P 3348.08 A 12 56.14 59.84 OV2-1 V2 4

UV 44 3378.06 A 9 56.17 59.84 U/2-

U

/2

Air 3052.53 A 8 56.17 60.23 U/2-OV2 3s’ 2 F-4s 2 S

3063.42 A 17 44.34 48.38 OV2—

U

/2 3s 2 S -3p 2 P° 3028.04 A 7 56.14 60.23 0

l /2-0 l /2 5

3071.61 A 16 44.34 48.37 OV2—OV2 1 2510.6 A 3* 56.17 61.11 U/2—OV2 3s’ 2 F-3p' 2 S

m2494.00 P O iv 56.14 61.11 0

1 /2-01/2 UV 53

3411.69 A 16 48.38 52.02 1

V

2-2 V2 3p 2 P°-3d 2 D

3403.52 A 15 48.37 52.01 OV2— 1

V

2 2 2921.45 A 10 57.94 62.18 U/2—

2

l / 2 3p' 2 P -3d' 2 D°

3413.64 A 12 48.38 52.01 U/2-

U

/2 2916.30 A 9 57.93 62.18 OV2-U/2 UV 54

Vac 2926.17 A 6 57.94 62.18 U/2-U/2 1046.316 A 5 48.38 60.23 U/2-OV2 3p 2 P°-4s 2S 2132.64 A 2 57.94 63.75 1 */2— 1 */2 3p' 2 P -3d’ 2 F

1045.384 A 4 48.37 60.23 0’/2—0'/2 UV 45 2120.58 A 1 57.93 63.77 0l /2-0'/2 UV 55

831.070 A 4 48.38 63.30 IV2-21/2 3p

2 P°-4d 2 D

830.506 A 3 48.37 63.30 OV2-I 1/2 UV 46

B8 iv-5
Multiplet Table

O IV

Continued O iv

Continued

I A Ref. Int. E P

J

Multiplet

No.

I A Ref. Int. E P

J

Multiplet

No. Low High Low High

Vac Vac

1639.430 A 4 60.23 67.80 OV2-IV2 4s 2 S-5p 2 P°

*3736.85 A 16 58.12 61.43 3V2-4V2 3p' 4 D -3d' 4 F° 1639.842 A 3 60.23 67.79 OV2—OV2 UV 57

3729.03 A 15 58.09 61.42 2V2-3 V2 6

*3725.93 A 14w 58.07 61.40 IV2-2 V2 *3725.93 A 14w 58.06 61.39 OV2—

U

/2 Air

*3758. 39§ P 58.12 61.42 3 V2—3 V2 4687.03 A 6 61.11 63.75 OV2 -IV2 3p' 2 S -3c?' 2 P°

12.02

3744.89 A 12 58.09 61.40 2V2-2 V2 *3736.85 A 16 58.07 61.39 IV2-IV2 Vac

3209.66 A 10 58.12 61.98 3 V2—3 V2 3p' 4 D -3c7' 4 D°

988.713 A 6 61.43 73.97 4V2—5 V2 3c?' 4 F -4/

1

' 4 G

988.628 A 6 61.42 73.96 3 V2—4 ^/

2

UV 58

3194.79 A 9 58.09 61.97 2 V2-2 V2 7 988.571 A 6 61.40 73.94 2V2-3V2

*3185. 86§§ A 7 58.07 61.97 IV2-IV2 *3180.87 A 8 58.06 61.96 OV2—OV2 988.523 A 5 61.39 73.93 IV2—2 V2 m3216.30 P 0 hi 58.12 61.97 3 V2-2 V2 3199.55 A 7 58.09 61.97 2V2-IV2 1062.271 A 6 61.98 73.65 3V2-4V2 3(f 4 D°-4/‘' 4 F

3188.66 A 6 58.07 61.96 1 V2—OV2 1062.133 A 6 61.97 73.64 2V2—3V2 UV 59

3188.25 A 6 58.09 61.98 2V2—3V2 1061.952 A 5 61.97 73.64 IV2-2 V2 *3180.87 A 8 58.07 61.97 IV2-2V2 1061.780 A 5 61.96 73.64 OV2— IV2 3177.89 A 6 58.06 61.97 OV2-IV2 1062.840 A 3 61.98 73.64 3V2-3V2 1062.434 A 3 61.97 73.64 2V2-2V2

2829.16 A 4 58.12 62.50 3V2-2 V2 3p' 4 D -3c7' 4P°

2803.59 A 3 58.09 62.51 2V2-IV2 UV 56 *1080.965 A 7 62.18 73.65 2V2-3V2 3c?' 2 D°-4f 2 F

m2827.23 P 0 v 58.07 62.52 IV2—OV2 *1080.965 A 7 62.18 73.65 IV2-2 V2 UV 60

2812.41 A 2 58.09 62.50 2V2-2V2 1081.645 A 3 62.18 73.65 2V2-2V2

2772.90 A 2 58.07 62.51 IV2-IV2 m2781.21 P 0 v 58.06 62.52 OV2—OV2 *1084.189 A 6 62.50 73.93 2V2-3 V2 3c?' 4 P°-4/v 4 D

*1084.189 A 6 62.51 73.95 IV2-2 V2 UV 61

3375.40 A 11 58.83 62.50 1 V:2—2V2 3p' 4 S -3(7' 4 P° *1084.189 A 6 62.52 73.96 0 1 H1

to" m3362.56 P 0 in 58.83 62.51 IV2— IV2 8 1083.382 A 3 62.51 73.96 IV2-IV2 3354.27 A 10 58.83 62.52 IV2—0V2 1083.613 A 3 62.52 73.96 OV2-OV2

4798.24 A 7 59.40 61.98 2V2-3V2 3p' 4 P -3(7' 4 D° Air

4783.42 A 6 59.38 61.97 1V2-2V2 9 2758.16 A 7 63.30 67.80 2 V2-IV2 4(7 2 D-5p 2 P°

4772.56 A 5 59.37 61.97 OV2— IV2 2759.05 A 6 63.30 67.79 IV2—OV2 UV 62

*4813. 15§§ A 5 59.40 61.97 2V2—2V2

4794.26 A 5 59.38 61.97 1V2-1V2 *2384.61 A Ih 63.30 68.50 2V2- 4(7 2 D -5Z

- 2 F°

4779.07 A 5 59.37 61.96 0

1 /2-0 1 /2 *2384.61 A Ih 63.30 68.50 IV2 —2 V2 UV 63

3995.08 A 7 59.40 62.50 2V2-2V2 3p' 4 P -3<7' 4P° Vac

3956.74 A 4 59.38 62.51 1V2-1V2 10 1169.160 A 1 63.35 73.96 P/2-4V2? 3(7' 2F°-4/

-

' 4 G

3930.68 P 59.37 62.52 OV2-OV2 1167.532 A 3 63.32 73.94 2 V2-3 V2? UV 64

3977.09 A 6 59.40 62.51 21/2-1 1/2 m3945.30 P On 59.38 62.52 1 V2 —

0

1 /

2

1164.545 A 6 63.35 74.00 3

X /2 —4J /2 3(7' 2F°-4f 2 G

m3974.58 P On 59.38 62.50 1 !/

2

—21/2 1164.320 A 5 63.32 73.97 2V2—3 V2 UV 65

3942.10 A 5 59.37 62.51 OV2—IV2 Air

5362.55 A 3 59.87 62.18 2

1 /2—2 1 /2 3p' 2 D -3(7' 2 D° 2450.040 A 11 63.63 68.69 3 V2— Af 2 F°-5g 2 G

5305.58 A 2 59.84 62.18 1 Vi2— 1 1/2 11 2449.372 A 11 63.63 68.69 2V2-3 V2 UV 66

3563.33 A 13 59.87 63.35 2 V2—3 V2 3p' 2D -3(7' 2F° Vac

3560.39 A 12 59.84 63.32 1 !/2 —2V2 12 1604.901 A 3 63.63 71.35 3 V2— 4f 2 F°-6^ 2 G

3593.08 A 7 59.87 63.32 2V2-2 V2 1604.620 A 2 63.63 71.35 2V2—3 V2 UV 67

7032.36 A 8w 60.23 62.00 OV2—IV2 4s 2S-4p 2 P°

7053.62 A Iw 60.23 61.99 OV2 —OV2 12.01

B8 iv-6
Multiplet Table

O IV—Continued O iv—Continued

I A Ref. Int. EP

J

Multiplet

No.

I A Ref. Int. E P

J

Multiplet

No.

Low High Low High

Vac Vac

1213.035 A 7 63.75 73.97 lV2-2>/2 3d' 2 P°-4f'

2 D *4344.311 A 6 68.50 71.35 5f

2 F°-6g 2 G

1213.196 A 6 63.77 73.99 0 nT" 1 CO UV 68 18

1211.043 A 2 63.75 73.99 1 V2- 1 V2? 4631.89 A Ih 68.69 71.36 5g 2 G-6A 2 H'

Air 19

3489.83 A 11 64.31 67.86 1 V2—2 V2 3s" 2 P°-3p" 2 D

3492.24 A 10 64.31 67.86 0 V2—1 V2 14 7677.4 A 4ie 71.35 72.97 6g 2 G -Ih 2 H'

3493.41 A 3 64.31 67.86 1

1/2—1 V2? 20

3628.74 A Ih 67.80 71.21 1 V2- 5p

2 P°-6d 2D 7713.3 A 6w 71.36 72.97 6h

2 H°-7i 2

I 3626.72 A 6h 67.79 71.21 0V2—1 V2 16 21

4389.50 A 6h* 68.44 71.27 2V2- 5d 2D—6/' 2 F° 5327.21 A Iwh 77.47 79.80 3pIV 2F°-3<iIV 2 G

4388.94 A 6h* 68.44 71.27 1 V2-2V2 17 22

B8 iv-7
NBS-114A (REV. 2-80

U.S. DEPT. OF COMM.

BIBLIOGRAPHIC DATA

SHEET (See instruction s)

1. PUBLICATION OR

REPORT NO.

NSRDS-NBS 3, Sec. 10

2. Performing Organ. Report No, 3. Publication Date

March 1983

4. TITLE AND SUBTITLE

Selected Tables of Atomic Spectra

Atomic Energy Levels and Multiplet Table

O IV

5. AUTHOR(S)

Charlotte E. Moore

6. PERFORMING ORGANIZATION (If joint or other than NBS, see in struction s)

NATIONAL BUREAU OF STANDARDS

DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

7. Contract/Grant No.

8 . Type of Report & Period Covered

N/A

9. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street. City. State. ZIP)

Same as Item 6

10.

SUPPLEMENTARY NOTES

Library of Congress Catalog Card Number: 64-60074

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

11.

ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant

bi bl iography or literature survey, mention it here)

The present publication is the tenth 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 10 includes these data for 0 IV. The form of the presentation is described in

detail in the text to Section I.

12.

KEY WORDS (Six to twelve entries ; alphabetical order; capitalize only proper names; and separate key words by semicolons)

atomic energy levels, O IV; atomic spectra, 0 IV; multiplet table, O IV;

oxygen spectra, O IV; spectrum O IV; wavelengths, O IV

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