bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pyrolytic Sulfurization Gas Chromatography. III. Simultaneous Determination of the Atomic Ratio between C, H, O, and N in a Metallo-organic Compound
Authors: Hara Tadashi , Fujinaga Kaoru , Tsuji Katsuya 
Published: July 2006

Abstract
Simultaneous determination of the atomic ratio between C, H, O, and N in a metallo-organic compound containing transition element is possible by the pyrolytic sulfurization gas chromatographic method, addition of reducing agent being unnecessary. Analytical results of metallo-organic compounds depend on the characteristics of their metal oxides. A few organophosphorus compounds were analyzed. The formation of water could be predicted from the atomic ratio of carbon to oxygen in a compound.
Stereochemical Studies of the Electrolytic Reactions of Organic Compounds. V. The Electro-reductive Cyclization of 1-Acyl-8-benzdylnaphthalenes to 1,2-Acenaphthenediols
Authors: Nonaka Tsutomu , Asai Mitsuo 
Published: July 2006

Abstract
The electrolytic reductions of several 1-acyl-8-benzoylnaphthalenes were carried out by means of controlled potential electrolysis at a mercury cathode in various catholytes. The isomeric ratio of the cis- and trans-1,2-acenaphthenediols thus formed depended on the kind of acyl group, supporting electrolyte, organic solvent in the catholyte, and cathode potential applied. The mechanism of the reductive cyclization is discussed from the stereochemical point of view, and it is proposed that the cyclization may occur not only by the intramolecular coupling of the biradical intermediate, but also by the intramolecular nucleophilic addition of the anionic part of the carbanion intermediate to its unreacted carbonyl group.
Synthesis of the Monoterpene Lactone from Chrysanthemum flosculosum L.
Authors: Yamagiwa Shûichi , Kosugi Hiroshi , Uda Hisashi 
Published: July 2006

Abstract
The synthesis of a lactonic constituent [(Z)-5-ethylidene-5,6-dihydro-3,6,6-trimethyl-2H-pyran-2-one] isolated from Chrysanthemum flosculosum L. is described. Dehydration of 5-ethyl-5,6-dihydro-5-hydroxy-3,6,6-trimethyl-2H-pyran-2-one derived from 5-ethyl-5,6-dihydro-6,6-dimethyl-3-phenylthio-2H-pyran-2-one via methylation, oxidation, [2,3]sigmatropic rearrangement, and saponification, gave the geoisomeric [(E)-5-ethylidene] lactone. Photochemical isomerization of the ethylidene side-chain furnished the natural lactone. The geometry of the ethylidene group in both isomers has been rigorously established.
Photochemical Reaction of 3,3-Dimethyl-1,2-indanedione with Xanthene
Authors: Maruyama Kazuhiro , Osuka Atsuhiro , Naruta Yoshinori 
Published: July 2006

Abstract
The photochemical reaction of 3,3-dimethyl-1,2-indanedione (DMID) with xanthene was investigated in detail. The products are 1-hydroxy-3,3-dimethyl-1-(9-xanthenyl)-2-indanone (3a) (49%), 2-hydroxy-3,3-dimethyl-1-indanone (13%), 1,1′-dihydroxy-3,3,3′,3′-tetramethyl-1,1′-biindan-2,2′-dione (5a) (23%), and 9,9′-bixanthenyl (6) (49%). The reaction proceeds via hydrogen abstraction by 3(nπ)* of DMID leading to triplet radical pair composed of its semidione radical and 9-xanthenyl radical. The product 3a is a combination product from the radical pair, while 5a and 6 are escaping products from it. The hydrogen abstraction occurs at C-1 carbonyl group of DMID in a fairly efficient quantum yield (Φ=0.71). Behavior of the DMID semidione radical is rather resemble those of open-chain semidione radicals than those of sterically hindered semidione radicals.
Solubility and Diffusion Coefficient of Sulfur in Silver
Authors: Fueki Kazuo , Ota Kenichiro , Kishio Kohji 
Published: July 2006

Abstract
The solubility Ns and the diffusion coefficient D of sulfur in silver were determined at 604–752 °C by means of a previously proposed method. The results can be represented by the following equations:
logNs(atom fraction)=−0.818−\frac2.28×103T,
D=2.34×10−3exp\left(−\frac26300RT\ight) cm2s−1.
Magnetic Susceptibility of the So-Called Zero-Valent Aluminium Complex of 2,2′-Bipyridine, [Al(bpy)3]0·1/2THF
Authors: Inoue Motomichi , Horiba Tatsuo , Hara Ken-ichi 
Published: July 2006

Abstract
The magnetic susceptibility of tris(2,2′-bipyridine)aluminium(0) was determined between 4.2 and 300 K. It can be explained by a radical ion model in which three 2,2′-bipyridine radical ions are coordinated to an aluminium-(III) ion. Antiferromagnetic interaction operates between the radical ions with the exchange integral J⁄k=−110–115 K.
The Oxidative Animation of Diethyl 2-Hydroxyazulene-1,3-dicarboxylate and Cycloheptimidazol-2(1H)-one
Authors: Kikuchi Katsuo , Maki Yuji , Saito Noriyuki 
Published: July 2006

Abstract
The reaction of diethyl 2-hydroxyazulene-1,3-dicarboxylate with morpholine, pyrrolidine, piperidine, and dimethylamine in the presence of copper(II) acetate gave the respective 6-aminoazulene derivatives. Similarly, the reaction of cycloheptimidazol-2(1H)-one with morpholine gave the 6-ami-nocycloheptimidazole derivative, while the reaction with pyrrolidine gave the 4-(or 5-)aminocycloheptimidazole derivative.
Reactions of Thioacylketene Thioacetals and o-Thioquinone Methides with Enamines
Authors: Okazaki Renji , Ishii Fumio , Inamoto Naoki 
Published: July 2006

Abstract
o-Thioquinone methide reacted with enamines to give [4+2] cycloadduct in good yield. In the case of morpholinoenamine, 1 : 2 adduct was obtained. Thiobenzoylketene thioacetals underwent dimerization accompanied by concomitant desulfurization upon reaction with 1-(1-pyrrolidinyl)cyclohexene. The reaction mechanism of these reactions were discussed. Some other reactions of thioacylketene thioacetals with enamines were also described.
Unusual Reductive Deamination of 2,6-Dibromo-3,4,5-trimethylaniline by Alkyl Nitrites in N,N-Dimethylformamide. Simultaneous Side-chain Nitration
Authors: Suzuki Hitomi , Mishina Tadashi , Hanafusa Terukiyo 
Published: July 2006

Abstract
Treatment of 2,6-dibromo-3,4,5-trimethylaniline with t-butyl nitrite in N,N-dimethylformamide at 60–65 °C was found to give a significant amount of a side-chain nitration product, 3,5-dibromo-2,6-dimethylphenylnitromethane, in addition to the expected 4,6-dibromo-1,2,3-trimethylbenzene.
Microwave Spectrum, Structure, and Quadrupole Coupling Constant of s-cis o-Chlorophenol-d
Authors: Onda Masao , Yamaguchi Ichiro 
Published: July 2006

Abstract
The microwave spectrum of o-chlorophenol-d has been observed in the frequency range 17–34 GHz. The rotational and centrifugal distortion constants have been obtained. The analysis of the hyperfine structure has given the following nuclear quadrupole coupling constants for the 35Cl species: χaa=−67.1, χbb=33.1, and χcc=34.0 (MHz). The spectrum assigned has been attributed to the s-cis-form (the hydroxyl hydrogen pointed toward the chlorine) from the consideration of the rs-coordinates of hydrogen and chlorine atoms. The non-bonded Cl…H distance is 2.373±0.001 Å.
Chemisorption of Sulfur on Thermally Decomposed Copper and Iron Sulfides
Authors: Yamasaki Nakamichi 
Published: July 2006

Abstract
The chemisorption of sulfur on thermally decomposed copper and iron sulfides was studied and its application to the desulfurization process of heavy oil was attemped. Thermal decomposition of sulfides was carried out by calcining CuS and FeS2 at 200–800 °C under 10−3 mmHg and with 5 °C/min. Sulfur was adsorbed on the calcined sulfides in toluene. Thermally decomposed copper sulfide (Cu/S: 1–2) easily chemisorbs free sulfur in toluene below 100 °C, but not iron sulfide (Fe/S: 1–0.5). The relationship between sulfur affinity and the structure of partially decomposed sulfide was discussed in terms of the kinetics of initial chemisorption of sulfur and the sulfur adsorption coefficient calculated from the ratio of the adsorbed sulfur to the sulfur required to reform starting CuS and FeS2. The partially decomposed copper sulfide (Cu1-2S) easily chemisorbs free sulfur in heavy oil. Chemisorption might be applied to the desulfurization of heavy oil.
The Photoreduction of the Silver Ion in a Zinc Oxide Suspension
Authors: Hada Hiroshi , Tanemura Hatsumi , Yonezawa Yoshiro 
Published: July 2006

Abstract
Quantum yields of from 0.235 to 0.385 have been determined for the reduction of Ag+ by the irradiation of 365 nm light on a ZnO surface in aqueous solutions containing 5×10−5 to 1×10−3 M AgClO4. It is proposed that these results can be interpreted by a reaction scheme based on the assumption that some conduction-band electron produced in the ZnO by the irradiation transfers to the Ag+ adsorbed on the ZnO surface. The surface-energy barrier under the present experimental conditions was discussed with the aid of the electrochemical measurement of the ZnO sinter. The photoreduction of Ag+ is optically sensitized by the addition of xanthene dyes, such as Uranine and Rhodamine B. In this case, it is observed that the photoreduction of Ag+ is accompanied by the photolysis of dye molecules. The apparent quantum yields (the number of reacted molecules/the number of photons absorbed in the suspension) of the dye-sensitized photoreduction of Ag+ and the photolysis of dye molecules are 0.015 and 0.007 for Uranine, and 0.003 and 0.0003 for Rhodamine B, respectively.
The Esterification of Thujopsene with Bismuth(III) Sulfate in Carboxylic Acids
Authors: Abe Kazuo , Ito Masaaki 
Published: July 2006

Abstract
The catalytic interaction of cis-(−) -thujopsene with a series of organic acids from acetic to octanoic in the presence of bismuth(III) sulfate afforded the corresponding esters in 20–34% yields, accompanied by skeletal rearrangement. The follow-up of the reaction, an investigation of the reaction conditions, and the effects of catalysts are described.
Fluxional Behavior of Palladium(II) and Platinum(II) Complexes Containing both a Metal–Aryl Bond and a Pyrazole-derived Ligand
Authors: Onishi Masayoshi , Sugimura Koji , Hiraki Katsuma 
Published: July 2006

Abstract
New (acetophenone oximato, 2-C,N)- and (benzophenone oximato, 2-C,N)palladium(II) complexes containing poly(1-pyrazolyl)borato ligand (BPz4 or HBPz3, Pz=1-pyrazolyl) or poly(1-pyrazolyl)methane (CPz4 or HCPz3) were prepared and investigated by means of 1H-NMR spectroscopy. For the BPz4 complexes, the tumbling motion of the BPz4 ligand averaged the environments of all four pyrazolyl groups to give spectroscopic equivalence above 65 °C, and was virtually frozen at ca. −9°C. With regard to the HBPz3, CPz4, and HCPz3 complexes, all pyrazolyl groups were equivalent at high temperature exhibiting stereochemical nonrigidity. The well-defined slow-exchange limiting spectra were not obtained at ca. −34 °C. In addition, new (acetophenone oximato, 2-C,N)platinum(II) complexes involving the BPz4 or HBPz3 ligand were prepared. The bidentate coordination of the BPz4 ligand in the BPz4 platinum(II) complex was stereochemically rigid in the range of 29 to 110 °C in DMSO-d6. Three pyrazolyl groups in the HBPz3 platinum(II) complex were equivalent at 85 °C in DMSO-d6, while the fluxional motion was fairly restricted at room temperature.
Phase Equilibria in Europium(III) Oxide-Titanium(IV) Oxide System at Temperatures from 900 to 1400 °C
Authors: Iwasaki Bunji 
Published: July 2006

Abstract
The phase equilibria in the Eu2O3–TiO2 system has been established at temperatures from 900 to 1400 °C in air using coprecipitated gels as starting materials. In this system, Eu2O3, TiO2, Eu2TiO5, and Eu2Ti2O7 are stable. The stoichiometric Eu2Ti2O7 has a cubic pyrochlore type structure with a=1.0210(3) nm, and forms a solid solution with TiO2. The TiO2 contents and the lattice constants of these solid solutions equilibrated with TiO2 at different temperatures were [given as mol %, a/nm, θ/°C]: 70.4(5), 1.0187(1), 1409(9); 69.5(5), 1.0193(1), 1292(8); 68.9(5), 1.0197(1), 1191(9); 68.4(5), 1.0200(1), 1099(2); 68.1(5), 1.0202(1), 996(4); and 68.0(5), 1.0203(1), 898(3). Numbers in parentheses are errors in the last digits.
Steric Effects on Carbon-13 Chemical Shifts in 3-Aryl-1,2,3-oxathiazolidine 2-Oxides
Authors: Nishiyama Tomihiro , Mizuno Takashi , Yamada Fukiko 
Published: July 2006

Abstract
The carbon-13 NMR spectra of 3-aryl-1,2,3-oxathiazolidine 2-oxides were obtained and discussed. Some of the carbon shifts are greatly influenced by the conformation of the oxathiazolidine ring.
Structural Study of Optical Resolution. IV-b. The Crystal Structure of (+)589-Oxalatobis(ethylenediamine)cobalt(III) Hydrogen-d-tartrate Monohydrate and Its Thermal Behavior
Authors: Kuramoto Masahiro , Kushi Yoshihiko , Yoneda Hayami 
Published: July 2006

Abstract
The crystal structure of (+)589-oxalatobis(ethylenediamine)cobalt(III) hydrogen-d-tartrate monohydrate, (+)589-[Co(ox)en2]H-d-tart·H2O, has been determined by three-dimensional X-ray analysis. The red crystals are monoclinic, space group P21 with two molecules in a unit cell of dimensions a=8.27(1), b=14.60(1), c=7.02(1) Å, and β=104.8(2)°. The structure was solved by Patterson and Fourier methods, and refined by anisotropic blockdiagonal least-squares to a conventional R-value of 0.100 for the 1265 independent reflections observed. In the diastereoisomer, the optically active complex cation is locked by the {H-d-tart}∞ units of the right-handed spiral chains formed along the b-axis. The TG and DSC measurements have been carried out on both less- and more-soluble diastereoisomers of oxalatobis(ethylenediamine) cobalt (III) hydrogen-d-tartrate; the difference of their thermal behavior is discussed.
Synthetic Approach to 2,3,5-Triamino-2,3,5-trideoxy-d-arabonic Acid Derivatives from 3,4,6-Triazido-3,4,6-trideoxy-1,2-O-isopropylidene-α-d-glucopyranose
Authors: Kinoshita Mitsuhiro , Aburaki Shinpei , Kawada Yasuyuki , Yamasaki Takumi , Suzuki Yoshiharu , Niimura Yoichi 
Published: July 2006

Abstract
3,6-Diazido-3,6-dideoxy-1,2-O-isopropylidene-α-d-glucofuranose was converted into the corresponding derivative of α-d-glucopyranose, which was transformed into 3,4,6-triazido-3,4,6-trideoxy-1,2-O-isopropylidene-α-d-glucopyranose (7) through the sequence of reactions involving displacement of sulfonate ester function with benzoate, followed by debenzoylation, sulfonylation, and nucleophilic substitution. Hydrogenolysis of 7 afforded the corresponding triamino derivative 8. The tri-N-benzyloxycarbonyl derivative of 8 was O-deisopropylidenated and oxidized with periodate to afford the piperidinose derivative 11, deformylation of which yielded 2,3,5-tris(benzyloxycarbonylamino)-2,3,5-trideoxy-d-arabinopyranose (13). “Pfitzner-Moffatt” oxidation of 11 failed to give the corresponding lactam 15. Condensation of the 6-N-benzyloxycarbonyl derivative of 8 (18) with cyanogen bromide afforded the cyclic guanidine derivative (20) hydrobromide. The triazido derivative 7 was converted into 3,4,6-tris(benzyloxycarbonylamino)-3,4,6-trideoxy-d-glucitol (23), which was then oxidized successively with periodate and chromium trioxide-acetic acid-pyridine to give 2,3,5-tris(benzyloxycarbonylamino)-2,3,5-trideoxy-d-arabono-1,4-lactone (25); this was further transformed into 2,3,5-trianimo-2,3,5-trideoxy-d-arabono-1,5-lactam (16).
The Reaction of N-(Phenylsulfonyl)benzohydrazonoyl Chloride with Enamines
Authors: Ito Suketaka , Tanaka Yumo , Kakehi Akikazu , Matsuno Toshiyuki 
Published: July 2006

Abstract
3-(Diethylamino)crotonic acid esters and 1-diethylamino-1-cyclohexene react with N-(phenylsulfonyl)benzohydrazonoyl chloride to give substituted pyrazoles in 87–89% and 1.4% yields, respectively, the corresponding morpholine enamines affording no pyrazoles. The pyrazole formation is interpreted in terms of a step-by-step process involving the nucleophilic attack of the enamines on the hydrazonoyl chloride.
Studies on 5–8 Fused Ring Compounds. II. The Crystal and Molecular Structure of 7-Bromo-4,4-dimethylbicyclo[6.3.0]undecane-2,6-dione
Authors: Umehara Misao , Takayanagi Hiroaki , Ogura Haruo , Hishida Shinzaburo 
Published: July 2006

Abstract
The crystal structure of 7-bromo-4,4-dimethylbicyclo[6.3.0]undecane-2,6-dione has been determined in order to elucidate the configuration and the conformation of 4,4-dimethylbicyclo[6.3.0]undecane-2,6-dione. The crystals of this compound are triclinic with space group P\barl and the unit cell dimensions are, a=7.178, b=16.934, c=6.091 Å, α=96.22, β=100.91, γ=115.39°, and Z=2. The crystal structure was solved by the heavy-atom method and refined by the block-diagonal least-squares method. The final R value for 1473 non-zero reflexions was 0.067. The ring fusion of this compound is trans and the 8-membered ring has a boat-chair conformation.
Structural Studies on Anthglutin, an Inhibitor of γ-Glutamyl Transpeptidase, from Penicillium Oxalicum
Authors: Kinoshita Takeshi , Minato Sadamasa 
Published: July 2006

Abstract
Anthglutin, a new γ-glutamylphenylhydrazine and an inhibitor of γ-glutamyl transpeptidase, has been isolated from the cultured medium of Penicillium oxalicum. Spectral studies indicate that it has the structure of 1-γ-l-glutamyl-2-(2-carboxyphenyl)hydrazine.
Solvent Effects on Intramolecular Photocycloaddition of Poly(1-vinylnaphthalene)
Authors: Kamijo Takao , Irie Masahiro , Hayashi Koichiro 
Published: July 2006

Abstract
Photocycloaddition reaction of naphthalene side groups in poly (1-vinylnaphthalene) was studied in cyclohexane, benzene, and dichloromethane. In cyclohexane the reaction proceeds following the first order kinetics to a high conversion of 70%, while in dichloromethane the reaction levels off at a very low conversion of 20%. The reaction behavior in benzene is intermediate between cyclohexane and dichloromethane. Quenching and sensitizing experiments proved that a triplet mechanism is predominant in cyclohexane, while in dichloromethane a singlet mechanism, presumably excimer mechanism, takes place. The solvent effect was interpreted by the formation of ground state dimer due to the conformational change of the polymer chain in poor solvents.
Oxidative Degradation of Polymers. VI. Photooxidation of Polystyrene Powder and Some Model Compounds
Authors: Shiono Takeo , Niki Etsuo , Kamiya Yoshio 
Published: July 2006

Abstract
The rates and products of photooxidation of polystyrene powder were studied at 70 °C under irradiation of a 30W low pressure mercury lamp. It was found that the rate of oxidation is remarkably high but the amount of oxygen incorporated into the polystyrene chain is very small. About a half of the absorbed oxygen appeared as carbon dioxide, independent of the conversion, irradiation time, oxygen pressure, and molecular weight. A trace amount of phenol was detected by GLC. The isotachophoretic analysis showed the formation of formic acid, oxalic acid, and glyoxylic acid. It was found that the mechanism of photooxidation is dependent on the state of the substrate, i.e., crystalline solid, melt(viscous liquid) or solution. It is concluded that the polystyrene powder is photooxidized from its surface and aromatic ring of polystyrene is cleaved to give carboxylic acids. It was suggested that ozone played an important role in the photooxidation of polystyrene. The conclusions are supported by the results obtained in the photooxidation of some model compouds such as 1,2-diphenylethane, hexamethylbenzene, azobenzene, and phenylazotriphenylmethane.
Synthesis of 6-O-Mycoloyl-Nacetylmuramyl-l-alanyl-d-isoglutamine with Antitumor Activity
Authors: Shiba Tetsuo , Okada Satoshi , Kusumoto Shoichi , Azuma Ichiro , Yamamura Yuichi 
Published: July 2006

Abstract
N-Acetylmuramyl-l-alanyl-d-isoglutamine corresponding to the minimum structure responsible for the immunoadjuvant activity of bacterial cell walls was acylated at the 6-hydroxyl group with various mycolic acids of long carbon chains in order to test their possible antitumor effects. Mycolic acids used were extracted from cell walls of Mycobacterium, Nocardia, and Corynebacterium. All the mycoloyl derivatives synthesized show antitumor activity based on a principle of immunotherapy.
The Synthesis of 1,2,3,4-Tetramethyl-5-nitronaphthalene and 1,2,3,4-Tetramethyl-6-nitronaphthalene
Authors: Oku Akira , Matsui Akira 
Published: July 2006

Abstract
1,2,3,4-Tetramethyl-5-nitronaphthalene and 1,2,3,4-tetramethyl-6-nitronaphthalene were prepared by the pyrolysis of 5- and 8-nitro-1,2,3,4,10,10-hexamethyl-1,4-dihydro-1,4-ethanonaphthalen-9-ones and their 6- and 7-nitro-isomers respectively.
Reactions of Azomethine Derivatives. IV. The Synthesis of 2,3,5-Trisubstituted 2-Pyrrolin-4-ones and Their Oxidation to 2,4,5-Trisubstituted 1,3-Oxazin-6-ones
Authors: Takahashi Masahiko , Inaba Nobuyuki , Kirihara Hiroji , Watanabe Shin-ichi 
Published: July 2006

Abstract
The reaction of aromatic azines with diphenylcyclopropenone in refluxing toluene gave 5-aryl-2,3-diphenyl-2-pyrrolin-4-ones (4) in moderate yields via initial [2+3] 1:1 cycloaddition and subsequent elimination of an aromatic nitrile from the adducts. Treatment with phosphorus pentasulfide deoxygenated the compounds 4 to 5-aryl-2,3-diphenyl-pyrroles. The same compounds 4 were oxidized to 2-aryl-4,5-diphenyl-1,3-oxazin-6-ones (11) by refluxing the pyridine solution in a stream of oxygen, by treatment with hydrogen peroxide, or by irradiation of the chloroform solution in a stream of oxygen. Treatment with alkali in aqueous pyridine converted 4 into 3-aroylamino-2,3-diphenylacrylic acids. These were also obtained from the hydrolysis of 11. When p-dimethylaminobenzaldehyde azine reacted with diethyl azodicarboxylate in refluxing toluene, a 1:2 conjugated adduct, 3,6-bis(p-dimethylaminophenyl)-1,2,7,8-tetrakis(ethoxycarbonyl)-1,2,4,5,7,8-hexaaza-3,5-octadiene, and a 1:1 conjugate adduct, 3,6-bis p(-dimethylaminophenyl)-1,2-bis(ethoxycarbonyl)-1,2,4,5-tetraaza-3,5-hexadiene, were obtained.
Dehydroannulenes. VIII. Synthesis of Position Isomers of Di-t-butyldiphenyl-1,8-bisdehydro[14]annulene and Dimethoxy Derivative
Authors: Nomoto Tateo , Nakatsuji Shin’ichi , Nakagawa Masazumi 
Published: July 2006

Abstract
Two position isomers of di-t-butyl-diphenyl-1,8-bisdehydro[14]annulene corresponding to o- and m-isomers of terphenyl have been prepared by a stepwise reaction sequence, and their physical properties were compared with those of 3,10-di-t-butyl-7,14-diphenyl-1,8-bisdehydro[14]annulene which corresponds to the p-isomer of terphenyl. The marked difference in electronic spectra between o-, m-, and p-isomers of terphenyl could not be observed in the spectra of “ortho”-, “meta”-, and “para”-isomers of the [14]annulene. Dimethoxy derivative of the “para-isomer, 3,10-di-t-bufyl-6,13-dimethoxy-7,14-diphenyl-1,8-bisdehydro[14]annulene, has been synthesized.
Syntheses and Some Properties of 9,2′:7′,9″-, 9,2′:9′,9″-, and 9,4′:9′,9″-Terfluorene
Authors: Minabe Masahiro , Yoshida Masaaki , Suzuki Kazuo 
Published: July 2006

Abstract
Three kinds of terfluorene and 9,4′:9′,9″:4″,9'″-quaterfluorene were synthesized. The 1H-NMR spectrum of 9′- and 9″-methine protons of 9,4′:9′,9″-terfluorene shows an AB spin pattern at room temperature, and that of 9,2′:9′,9″-terfluorene has an A2 pattern. The π-π* red shift of the UV spectra of some fulvalenes are in the order of 9,9′-bifluorenylidene, 4-(9-fluorenyl)-, and 4,4′-di(9-fluorenyl)-9,9′-bifluorenylidene. A homoconjugation effect was also observed in an alcohol series: 9-fluorenol, 4,9′-bifluoren-9-ol, and 9,4′:9′,9″-terfluoren-9′-ol.
Mass-transfer Experiment through the Water–Benzene Interface in a Capillary Tube
Authors: Shimbashi Teruya 
Published: July 2006

Abstract
In order to confirm a previous discussion of a mass-transfer experiment that indicated a high interfacial resistance, an experiment using a capillary tube was done for the transfer process of butylamine through the water-benzene interface at 50 °C. The results obtained agree with the preceding ones.
Excitation Wavelength Dependence of Quinoline Phosphorescence Lifetime
Authors: Hung I-Fu , Okamura Tadashi , Sugamori Sam , Yip R W 
Published: July 2006

Abstract
The quinoline phosphorescence lifetime in several rigid media at 77 K has been found to be dependent on excitation wavelength. The change of lifetime is especially remarkable in hydroxylic solvents. This observation has been attributed to the inhomogeneous broadening of spectral lines caused by the distribution of solvent environments around quinoline molecules.