Yoko Miyatake,
Hirotomo Hase,
and
Masaaki Ogasawara*,
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Yoko Miyatake,
Hirotomo Hase,
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ckel Ring and the M
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Analitical and Inorganic
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and
Yonezo Maeda
-Titanium Phosphate
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and
Wasuke Mori
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Orgainc and Biological
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and
Tadamitsu Sakurai
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Gui-Yang-Sheng Wang,
Yasuyuki Fujitani,
and
Daisuke Uemura*,
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Cheng-Shyan Dai,
Pai-Feng Tsai,
Hitoshi Takeshita,*,
Yun-Sha -Lin,*
and
(the late) Tetsuo Nozoe
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Osamu Hayashida,GO TO the graphical abstract
-Hydroxy
,
-Unsaturated Carboxylic Esters and Sulfones
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and
Motohiro Akazome
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Applied and Materials
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Kazuo Hirota,
Masahiro Hosoda,
and
Kazuo Tai
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Tomokazu Matsue
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Errata
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Kaori Wakamatsu, and
Masanao Oya*
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Kaori Wakamatsu,
Yasuko Iizuka,
Kouki Oguma, and
Masanao Oya*
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Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2861-2880 (1997) [Vol. 70, No. 12, December, 1997]
Surface-enhanced infrared absorption spectroscopy enables in situ monitoring of electrochemical reactions at time-resolutions ranging from microseconds to milliseconds without the interference from the bulk solution. Simultaneous infrared and electrochemical measurements provide significant insights into chemistry and physics at the electrochemical interface.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2881-2893 (1997) [Vol. 70, No. 12, December, 1997]
The structures of transition metal complexes with low coordinate organophosphorus compounds are described, involving diphosphenes, phosphaethenes, phosphaallenes, and phosphabutatrienes, of coordination number 2. They are discussed in terms of X-ray crystallographic analysis and 31 P NMR analysis.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2895-2911 (1997) [Vol. 70, No. 12, December, 1997]
In situ formation of enolate equivalents in the active site of enzymes and subsequent enantioselective protonation provides a new route to optically active compounds with a chiral center adjacent to a carbonyl group.
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=============================
Articles
General and Physical
=============================
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2913-2918 (1997) [Vol. 70, No. 12, December, 1997]
The interaction of dyes (R = C 1 -C18 ) with CTAB aggregates delineates the site of the location of the dyes in the hydrophobic force field surrounding it and the effect of the alkyl chain on this topology.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2919-2923 (1997) [Vol. 70, No. 12, December, 1997]
Yoko Miyatake,
Hirotomo Hase,
and
Masaaki Ogasawara*,
Fluorescence and cycloaddition reaction induced in 2,5-distyrylpyrazine crystal by ionizing radiation were studied by means of pulse radiolysis and 60
Co
-ray radiolysis. The G
-value obtained 4-5 by ionizing radiation for the decrease of the olefinic double bond suggested efficient activation of DSP in the irradiated crystal.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2925-2933 (1997) [Vol. 70, No. 12, December, 1997]
A zinc complex, [ZnL(PhCOO)2 ] 1 , where L=2 ,2' -thiodimethylene bis(benzimidazole), has been designed so as to keep tetrahedral coordination around the zinc. 13 C NMR and single-crystal X-ray diffraction studies have revealed the molecular structures of two chemical species, [ZnL(PhCOO)2 ] and [ZnL2 ]2+ , and the kinetics of ligand exchange reactions in a solution of 1 .
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2935-2942 (1997) [Vol. 70, No. 12, December, 1997]
A nonlinear optical effect due to the thermal energy after photoexcitation of a light-absorbing chromophore in micro droplets (oil in water and water in oil) were investigated by a time-resolved transient grating method. The temporal profiles were analyzed in terms of the droplet heating, thermal expansion and subsequent cooling process consistently.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2943-2949 (1997) [Vol. 70, No. 12, December, 1997]
Phytoglycogen is precipitated by the addition of various nonionic surfactants. The dispersion stability of phytoglycogen in phytoglycogen and surfactant-coexisting systems depends on the hydrophile-lipophile balance (HLB) and the aggregation number of each surfactant. A schematic representation of the phase behavior is shown in the figure to the left.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2951-2956 (1997) [Vol. 70, No. 12, December, 1997]
-
)
NH(X3
-
) could be detected as products of the reactions of N(2
D) with simple alkane hydrocarbons. The nascent state distributions of NH showed little dependence on the complexity of the hydrocarbons. The intermediate complexes which lead to the production of NH must be short-lived.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2957-2962 (1997) [Vol. 70, No. 12, December, 1997]
The diffusion coefficients of ortho -positronium (o -Ps), estimated from the quenching rate constants in its annihilation, are much smaller than those expected from a simple size extrapolation of the relation between the diffusion coefficients of gas molecules and their diameters, as shown in the Figure, suggesting that the migration of o -Ps follows a different mechanism from that of gases.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2963-2972 (1997) [Vol. 70, No. 12, December, 1997]
The highest-temperature solid phases of perchlorate and hexafluorophosphate were revealed to be CsCl-type cubic, while that of nitrate was NaCl-type cubic. Isotropic rotations of cations and anions were observed in both type cubic phases. Self-diffusion of the cation was detected only in the CsCl-type cubic phase, while that of the anions is considered to be excited in both types of cubic phases.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2973-2979 (1997) [Vol. 70, No. 12, December, 1997]
ckel Ring and the Mbius Ring
,
The Green's function method is applied to the study of the electronic structures of the Hckel- and the Mbius type species. It is shown in analytical form that several orbital properties of the 4m+2
membered Hckel ring correspond to that of the 4m
membered Mbius ring.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2981-2986 (1997) [Vol. 70, No. 12, December, 1997]
The presence of the rotator phase was revealed between 345 and 457 K in C12 H25 NH3 Cl, where cations perform rapid the 2-D self-diffusion as well as the axial rotation about the long axis, accompanied by conformational disorder together with random tumbling of this axis.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2987-2993 (1997) [Vol. 70, No. 12, December, 1997]
Chromatographic adsorption isotherms of acetone and benzene diluted in CO2 on silica gel show a maximum, and then decrease with increasing pressure; they increase with increasing temperature after a crossover is met. The isotherms are qualitatively similar to those obtained from IR spectroscopy.
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Articles
Analitical and Inorganic
=============================
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 2995-2999 (1997) [Vol. 70, No. 12, December, 1997]
A PVC-based membrane electrode of a tetraaza macrocyclic ligand shows a Nernstian response for nickel ions over a wide concentration range (0.294 to 58.69×102 mg dm-3 ) between pH 3.0-7.0. The sensor exhibits excellent selectivity for nickel ions in the presence of normal interferents, and has been used for estimating Ni2+ ions in milk products and hydrogenerated vegetable oils.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3001-3009 (1997) [Vol. 70, No. 12, December, 1997]
and
Yonezo Maeda
Several iron(III) complexes with the hexadentate schiff-base ligands of N4
O2
donor sets were synthesized; these are the 1 : 2 condensation products of linear tetramines (3,3,3-, 3,2,3-, 2,3,2-, or 2,2,2-tetramine) and salicylaldehyde, acetophenone, or benzophenone derivatives. The crystal structures, Mssbauer spectra, and magnetic properties of the complexes were examined.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3011-3015 (1997) [Vol. 70, No. 12, December, 1997]
-Titanium Phosphate
The intercalation of cytosine derivatives into
-TiP was successful. In addition, cytarabine release tests from the cytarabine intercalation compound were performed in the solutions containing Na+
. The release of cytarabine became slower by intercalation into
-TiP, and was influenced by the pH value and the concentration of Na+
in the test solution.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3017-3023 (1997) [Vol. 70, No. 12, December, 1997]
Strontium sulfites with four forms of crystals, included spherulite and spindle form, were prepared in the metasilicate gel. The optimum conditions controlling the crystal form were influenced by the pH value in the gel and the temperature effect. According to the amount of nuclei in the gel, the crystal form will be changed.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3025-3029 (1997) [Vol. 70, No. 12, December, 1997]
In the thermal reactions of trans -[Ni(diamine)2 (H2 O)2 ]X2 , where diamine is 1,2-diphenyl-1,2-ethanediamine, 1,2-cyclohexanediamine or 4-methyl-1,2-pentanediamine, and X is Cl- , Br- , or NO3 - , there are notable differences between the complexes with the optically active diamines and the complexes with the corresponding racemates.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3031-3040 (1997) [Vol. 70, No. 12, December, 1997]
and
Wasuke Mori
Several dinuclear vanadium(III) complexes with a heptadentate dinucleating ligand containing a bridging alkoxo group (dpot, tphpn, or hpnbpda) were prepared and characterized by X-ray crystallography. The vanadium(III) center adopts a distorted octahedron, a capped octahedron, or a pentagonal bipyramid, depending on the properties and arrangement of the ligand.
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Articles
Orgainc and Biological
=============================
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3041-3046 (1997) [Vol. 70, No. 12, December, 1997]
and
Tadamitsu Sakurai
N ,N' -Bis(1-pyrenylmethyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane ( 1 ) and N -(1-pyrenylmethyl)-1,4,7,10,13-pentaoxa-16-azacyclooctadecane ( 2 ) were synthesized and found to display unique photophysical properties in the presence of the guest metal salts. The binding of metal ions to the diazacrown ether 1 cavity inhibited exciplex formation and changed the distance between the two pyrenyl groups.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3047-3053 (1997) [Vol. 70, No. 12, December, 1997]
Amplification effect in molecular recognition is not observed in alcohols or water, as indicated by the findings that the selectivity (a measure of molecular recognition) in oxidation of 1 and 2 in alcohols decreases markedly with increasing temperature, whereas that in water increases with temperature.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3055-3060 (1997) [Vol. 70, No. 12, December, 1997]
Allyltrimethylsilane or an allylsilane bearing a halogen substituent reacted with the polyhalogen compounds in the presence of copper(I) chloride to form polyhalo compounds containing an ally group by the elimination of a trimethylsilyl group or a halogen atom, respectively.
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Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3061-3069 (1997) [Vol. 70, No. 12, December, 1997]
Gui-Yang-Sheng Wang,
Yasuyuki Fujitani,
and
Daisuke Uemura*,
A bioassay system was developed using marine bacteria with adhering properties. Novel nitroalkanes, untenines A, B, and C, were isolated from the Okinawan sponge Callyspongia sp. N ,N -dichloro-2-(4-nitrophenyl)ethylamine, 2-(4-nitrophenyl)ethyl isocyanide, 2-(4-nitrophenyl)ethyl isothiocyanate, and N -[2-(4-nitrophenyl)ethyl]dithiocarbamate significantly inhibited the growth of marine attaching bacteria. Long-term field testing of these compounds is in progress.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3071-3074 (1997) [Vol. 70, No. 12, December, 1997]
Cheng-Shyan Dai,
Pai-Feng Tsai,
Hitoshi Takeshita,*,
Yun-Sha -Lin,*
and
(the late) Tetsuo Nozoe
An extended azulenoid ketocarbene generated by photolysis coupled with azulenes, electron-polarized aromatic compounds, to afford 1,2-biazulenes in good yields.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3075-3079 (1997) [Vol. 70, No. 12, December, 1997]
Osamu Hayashida,
5,5' -(9,10-Anthracenediyl)diresorcinol ( 1 ) forms solid inclusion adducts with citronellal ( 2 ), which undergoes facilitated and stereoselective (up to 98%) intra-adduct ene reactions to give isopulegol ( 3 ). Host ( 1 ) also catalyzes the present reaction but with less pronounced stereoselectivities.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3081-3090 (1997) [Vol. 70, No. 12, December, 1997]
Substituent effects on solvolyses of 1-aryl-1-(3-chlorophenyl)-2,2,2-trifluoroethyl and 1-aryl-1-(3,5-dichlorophenyl)-2,2,2-trifluoroethyl p
-toluenesulfonates or bromides in 80% aq ethanol at 25 °C were analyzed by the Yukawa-Tsuno equation. The correlation results were discussed in terms of varying resonance demands and changing coplanarity of two aryl 
-system with extremely deactivated carbocationic centers in the transition states.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3091-3101 (1997) [Vol. 70, No. 12, December, 1997]
-Hydroxy
,
-Unsaturated Carboxylic Esters and Sulfones
and
Motohiro Akazome
High 1,2-asymmetric induction was realized by the addition of a 1-hydroxy-1-methylethyl radical to conformationally flexible (E
)-
-hydroxy
,
-unsaturated esters and sulfones (
1
and
2
, respectively), which proceeded in an anti fashion. In contrast, syn
-stereoselectivity was observed in a radical addition to (Z
)-
2
.
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3103-3110 (1997) [Vol. 70, No. 12, December, 1997]
Water-solubilities of newly synthesized 5-nido -orthocarboranyluridines ( 17 , 18 , and 19 ) were 100 to 1000 times higher than those of their closo counterparts. Cytotoxicities were dramatically decreased on going from closo -types to nido -types. Selective cellular uptake of 19 was observed as well as its closo counterpart.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3111-3115 (1997) [Vol. 70, No. 12, December, 1997]
A combination of nitrogen dioxide and water has been found to provide a new agent for the transformation of various alkyl methyl ethers to the corresponding carbonyl compounds under mild conditions. In the presence of ozone, but without water, the similar oxidation was observed only after a prolonged induction period.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3117-3128 (1997) [Vol. 70, No. 12, December, 1997]
Ruthenium-catalyzed reactions of carbon-hydrogen bonds in aromatic ketones with olefins giving the corresponding C-H/olefin coupling products have been studied with the emphasis laid on the effect of various substituents at the aromatic ring.
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=============================
Articles
Applied and Materials
=============================
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3129-3136 (1997) [Vol. 70, No. 12, December, 1997]
The mechanism of urushi lacquer handening has been studied. First, the structure of the so-called Laccase (Acetone Powder) was predicted, and by this result the following process was postulated to be the Kurome procedure:
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3137-3152 (1997) [Vol. 70, No. 12, December, 1997]
A series of cation radical BETS and ET salts containing bis(dithiosquarato)metalate anions were synthesized. Each of these salts has many short chalcogen-chalcogen contacts and C-H...O hydrogen bonds, which is one of the factors in determining the conformation of the terminal ethylene group of donors in these crystals.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3153-3158 (1997) [Vol. 70, No. 12, December, 1997]
Kazuo Hirota,
Masahiro Hosoda,
and
Kazuo Tai
4-Rf SO2 -substituted azo NLOphores showed enhanced d33 values and an improved relaxation behavior compared with the NO2 substituted compound in both doped PMMA and pendanted MMA copolymer.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3159-3162 (1997) [Vol. 70, No. 12, December, 1997]
and
Tomokazu Matsue
The characteristics of microelectrode-detected ESR (MEDESR) of nitroxide radicals in electrolyte solutions were analyzed. As a result, we found that MEDESR signals were irrelevant to the radicals in the electrical double layer, and were derived from some changes in the microwave in the whole resonator.
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1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3163-3166 (1997) [Vol. 70, No. 12, December, 1997]
Compounds 1 , 2 , and 3 show a smectic A phase, where the smectic-isotropic transition temperatures decrease with increasing the hydrocarbon chain lenth, and the smectic A phase forms an interdigited arrangement of molecules.
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=============================
Errata
=============================
Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3167-3167 (1997) [Vol. 70, No. 12, December, 1997]
Kaori Wakamatsu, and
Masanao Oya*
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Copyright (C)
1997 The Chemical Society of Japan
Bull. Chem. Soc. Jpn.,
70, 3169-3169 (1997) [Vol. 70, No. 12, December, 1997]
Kaori Wakamatsu,
Yasuko Iizuka,
Kouki Oguma, and
Masanao Oya*
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