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Vol. 81, No. 2 (February, 2008)
[PDF version]
| The Chemical Society of Japan Award for 2004 |
Web Release Date:
February 12, 2008
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| 171-182
Adaptation Strategy of Thermophiles toward Hyperthermophily and Their Molecular Bases
T. Imanaka
[Full Text PDF(J-STAGE)] Free Access Article
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We isolated the hyperthermophilic archaeon, Thermococcus kodakaraensis KOD1, which can grow at temperatures up to the boiling point. As expected, all enzymes, DNA, and cytoplasmic membrane displayed remarkable thermostability, and we have determined some of the basic principles that govern this feature.
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| The Chemical Society of Japan Award for Young Chemists for 2006 |
Web Release Date:
February 12, 2008
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| 183-192
Genetically Encoded Fluorescent Indicators to Visualize Molecular Processes in Living Cells
M. Sato
[Full Text PDF(J-STAGE)] Free Access Article
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Our research on the development of novel methods are reviewed that allowed us to visualize spatial and temporal dynamics of key molecular processes in living cells.
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| Web Release Date:
February 12, 2008
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| 193-219
Numbers of Achiral and Chiral Monosubstituted Alkanes Having a Given Carbon Content and Given Numbers of Asymmetric and Pseudoasymmetric Centers
S. Fujita
[Full Text PDF(J-STAGE)] Free Access Article
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Monosubstituted alkanes are combinatorially enumerated, where the stereoisomer numbers are itemized with respect to carbon content, the number of asymmetric centers (*), and the number of pseudoasymmetric centers (†).
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| Web Release Date:
February 12, 2008
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| 220-234
Gas Transport Coefficients of Light Hydrocarbons. Halogenated Methane and Ethane as Candidates for New Refrigerants
J. Moghadasi, M. M. Papari,* D. Mohammad-Aghaie, and A. Campo
[Full Text PDF(J-STAGE)]
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Isotropic potential energies of some refrigerants were employed to predict their transport properties. The thermal conductivity was determined using the Huber scheme, whereas other transport properties were obtained using Chapman–Enskog theory. Results show reasonable agreement with literature data.
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| Web Release Date:
February 12, 2008
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| 235-240
Photo-Induced State Conversion Mechanism of an Optically Durable Molecular Memory with Controlled Hydrogen Bonding: A Spin–Orbit CI Study of [{Co(2,2′-biimidazole)(C6H4O2)(NH3)2}2]
H. Mori* and E. Miyoshi
[Full Text PDF(J-STAGE)]
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The possibility for photon-mode memory writing of [{Co(2,2′-biimidazole)(C6H4O2)(NH3)2}2] is examined from results obtained by spin–orbit complete active space configuration interaction (SO-CASCI) calculations.
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| Web Release Date:
February 12, 2008
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| 241-247
Dimensionality of Aromaticity
J. Aihara
[Full Text PDF(J-STAGE)]
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Aromaticity is one-dimensional, in the sense that, for a variety of cyclic π-systems, magnetic resonance energy (MRE), a kind of aromatic stabilization energy derived from the magnetic response of a cyclic π-system, correlates well with topological resonance energy (TRE).
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| Web Release Date:
February 12, 2008
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| 248-253
A Damped Oscillator Model for Infrared Spectra of Formamide in the Liquid State
I. Kanesaka* and E. Mitsuhashi
[Full Text PDF(J-STAGE)]
Infrared spectra of formamide are wholly analyzed for the in-plane modes on the basis of a damped oscillator model. The analysis reveals the relation in the band widths among the whole modes, that is, the origin of the band widths.
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| Web Release Date:
February 12, 2008
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| 254-256
FMO-MO Method as an Initial Guess Generation for SCF Calculation: Case of (−)-Epicatechin Gallate
K. Tamura, T. Watanabe, T. Ishimoto, H. Umeda, Y. Inadomi, and U. Nagashima*
[Full Text PDF(J-STAGE)]
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FMO-MO (Molecular orbitals (MOs) of the fragment MO (FMO) method) for (−)-epicatechin gallate were calculated to examine the dependency of the accuracy on the fragmentation patterns and different basis sets, and the results were compared to those obtained using conventional MO calculations. Results also show that the FMO-MO can be used as the initial guess in self-consistent field calculations.
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| Web Release Date:
February 12, 2008
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| 257-261
Potentiometric Carbon Paste Electrodes for the Determination of Bismuth in Some Pharmaceutical Preparations
G. A. Mostafa* and A. M. Homoda
[Full Text PDF(J-STAGE)]
Two novel potentiometric membrane sensors responsive to bismuth(III) are described. These are based on the use of ion-association complexes of tetraiodobismate(III) anion with polyoxyethylene(10) octyl phenyl ether and tris(1,10-phenanthroline)iron(II) as exchange sites in carbon paste matrix. The sensors are used for direct determination of bismuth(III) in some pharmaceutical formulations.
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| Web Release Date:
February 12, 2008
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| 262-267
Synthesis, Characterization, and Conducting Properties of Heterobimetallic Salts of Cyanoiminomethanedithiolate Ligand
N. Singh* and B. Singh
[Full Text PDF(J-STAGE)]
Heterobimetallic ion-pair complexes of the type [M(bpy)3][M′(cdc)2] (M = Ni2+, Co2+, and Fe2+; M′ = Ni2+ and Cu2+; bpy = 2,2′-bipyridine; cdc2− = cyanoiminomethanedithiolate) and their I2-doped products have been prepared and characterized by spectroscopic, magnetic, and solid-state electrical conductivity technique.
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| Web Release Date:
February 12, 2008
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| 268-273
Triply Interpenetrated Structure of {MnII(L)2[AgI(CN)2]2}{MnII(H2O)2[AgI(CN)2]2} (L = 4-CNpy or py-4-aldoxime)
T. Kawasaki, C. Kachi-Terajima, T. Saito, and T. Kitazawa*
[Full Text PDF(J-STAGE)] [Supporting Information]
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Two novel 3D network coordination polymers {Mn(L)2[Ag(CN)2]2}{Mn(H2O)2[Ag(CN)2]2} (L = 4-CNpy or py-4-aldoxime) were synthesized and characterized by using single-crystal X-ray analysis and magnetic measurements. There are large channels in the 3D {Mn[Ag(CN)2]2} networks; however, triple interpenetration occurs in these complexes.
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| Web Release Date:
February 12, 2008
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| 274-277
Catalytic Asymmetric Borane Reduction of Prochiral Ketones by Using (S)-2-(Anilinomethyl)pyrrolidine
N. Hosoda, Y. Iogawa, Y. Shimada, and M. Asami*
[Full Text PDF(J-STAGE)]
Asymmetric borane reduction of prochiral ketones using the diazaborolidine prepared from borane and (S)-2-(anilinomethyl)pyrrolidine as a catalyst afforded the corresponding chiral secondary alcohols with moderate to high enantiomeric excesses (up to 96% ee).
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| Web Release Date:
February 12, 2008
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| 278-286
Efficient and Selective Pt/C-Catalyzed H–D Exchange Reaction of Aromatic Rings
N. Ito, H. Esaki, T. Maesawa, E. Imamiya, T. Maegawa, and H. Sajiki*
[Full Text PDF(J-STAGE)]
An effective and applicable H–D exchange method for aromatic rings using Pt/C–D2O–H2 system under unprecedented mild conditions is described. This method could be apply to the practical multi-gram synthesis of deuterium-labeled compounds, including biologically active compounds.
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| Web Release Date:
February 12, 2008
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| 287-290
Vanadium-Catalyzed Cross-Coupling Reactions of Alkyl Halides with Aryl Grignard Reagents
S. Yasuda, H. Yorimitsu,* and K. Oshima*
[Full Text PDF(J-STAGE)]
Vanadium(III) chloride catalyzed cross-coupling reactions of secondary and primary alkyl halides with arylmagnesium bromides.
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| Web Release Date:
February 12, 2008
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| 291-297
Effects of Anionic Surfactants on the Hydride-Transfer Reaction of NADH with Methylene Blue: In Premicellar and Micellar Regions
T. Matsumoto, T. Otsuki, Y. Sueishi, and S. Yamamoto*
[Full Text PDF(J-STAGE)]
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The rate constants of reaction of NADH with MB+ were obtained in the presence of anionic surfactants. The concentration of SDES can be divided into four regions, in connection with the changes in the absorbance of MB and the observed rate constant.
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| Web Release Date:
February 12, 2008
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| 298-300
Time-of-Flight LC/MS Identification and Confirmation of a Kairomone in Daphnia magna Cultured Medium
H. Uchida,* K. Yasumoto, A. Nishigami, J. A. Zweigenbaum, T. Kusumi, and T. Ooi
[Full Text PDF(J-STAGE)]
One of the Daphnia kairomones, which was originally isolated and determined from Daphnia pulex body, was identified from a cultured medium of Daphnia magna by time-of-flight liquid chromatography/mass spectrometry with electrospray ionization after concentration by the Methylene Blue method.
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| Web Release Date:
February 12, 2008
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| 301-303
Hydrophobic Environment of Cysteine Residues in Pig Brain S-100 Proteins
S. Matsuda
[Full Text PDF(J-STAGE)]
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The hydrophobicity of cysteine residues in S-100a.a′ and S-100b complexes were determined using a thiol-specific fluorescence probe. The hydrophobicity of the Cys-residues decreased in the order of Zn2+/S-100, S-100, Mg2+/S-100, K+/S-100, and Ca2+/S-100.
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| Web Release Date:
February 12, 2008
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| 304-306
Preparation of Sterically Congested Compounds: 6,7-Di-t-butyl-1,4-naphthoquinone, 2,3,6,7-Tetra-t-butylanthraquinone, and 2,3,6,7-Tetra-t-butylanthracene
K. Iguchi, Y. Sugihara, and J. Nakayama*
[Full Text PDF(J-STAGE)]
Sterically congested compounds, such as 6,7-di-t-butyl-1,4-naphthoquinone, 2,3,6,7-tetra-t-butylanthraquinone, and 2,3,6,7-tetra-t-butylanthracene, were synthesized by using 3,4-di-t-butylthiophene 1-oxide as a diene.
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