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Vol. 83, No. 2 (February, 2010)
[PDF version]
| The Chemical Society of Japan Award for Creative Work for 2008 | Web Release Date: January 29, 2010
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| 101-119
Chiral Phosphoric Acids as Versatile Catalysts for Enantioselective Carbon–Carbon Bond Forming Reactions
M. Terada
[Full Text PDF(J-STAGE)]
Free Access Article
 | Binaphthol-derived monophosphoric acids were designed as novel chiral Brønsted acid catalysts. The chiral phosphoric acids thus developed functioned as efficient enantioselective catalysts for a variety of carbon–carbon bond forming reactions affording enantioenriched products in excellent selectivities. |
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Web Release Date: January 20, 2010
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| 120-130
Three Structural Isomers of Dinaphthothieno[3,2-b]thiophenes: Elucidation of Physicochemical Properties, Crystal Structures, and Field-Effect Transistor Characteristics
T. Yamamoto, S. Shinamura, E. Miyazaki, and K. Takimiya*
[Full Text PDF(J-STAGE)]
[Supporting Information] Free Access Article
 | Three structural isomers of dinaphthothieno[3,2-b]thiophenes with C2h symmetry were investigated to gain an insight into the relationship between the molecular structure and the semiconductor characteristics of highly π-extended heteroarene-based organic semiconductors. |
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Web Release Date: January 29, 2010
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| 131-144
Partial Pair Correlation Functions of Highly Concentrated Aqueous Urea Solutions Determined by Neutron Diffraction with 14N/15N and H/D Isotopic Substitution Methods
Y. Kameda,* A. Maki, Y. Amo, and T. Usuki
[Full Text PDF(J-STAGE)]
 | Neutron diffraction measurements were carried out on 14N/15N and H/D isotopically substituted aqueous 25 mol % urea solutions in order to obtain direct experimental information on the short-range structure of the urea–urea, urea–water, and water–water interactions in highly concentrated aqueous urea solutions near saturation. |
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Web Release Date: January 29, 2010
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| 145-150
A Comparative Study on Chiral and Racemic 12-Hydroxyoctadecanoic Acids in the Solutions and Aggregation States: Does the Racemic Form Really Form a Gel?
T. Sakurai, Y. Masuda, H. Sato, A. Yamagishi, H. Kawaji, T. Atake, and K. Hori*
[Full Text PDF(J-STAGE)]
[Supporting Information]
 | Separately formed gels of d- and l-12HOAs became a solution on maintaining contact, showing that dl-12HOA does not form a gel. NMR spectroscopy shows that molecular aggregation is more favorable in the dl-12HOA solutions than in the d-12HOA solutions. |
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Web Release Date: January 20, 2010
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| 151-156
Synthesis and Characterization of Allylic Dinuclear Molybdenum Complexes with Bridging Oxygen and Sulfur Containing Ligands
M. Y. Shatnawi,* S. A. Tanash, S. A. Al-Ahmad, P. R. Challen, and G. Henkel
[Full Text PDF(J-STAGE)]
 | Dinuclear molybdenum complexes of alcoholate and thiolate ligands were prepared. X-ray crystallographic structural determination showed that there are no Mo–Mo bonds and the ligands are present in a bridging manner. The dinuclear complexes have three bridging –SR or –OR ligands. |
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Web Release Date: January 29, 2010
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| 157-164
Synthesis and Structure of Group 10 Metal Complexes with New Tripodal Tetradentate Ligand Bearing One Phosphine and Three Thioether Moieties
N. Takeda,* Y. Tanaka, F. Sakakibara, and M. Unno*
[Full Text PDF(J-STAGE)]
A new phosphine ligand tethered with three thioether moieties, [2-(i-PrS)C6H4]3P, forms five-coordinate trigonal-bipyramidal complexes with nickel(II) and palladium(II) and a square-planar complex with platinum(II). These results are consistent with the tendency to form five-coordinate complex in the order of NiII > PdII > PtII.
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Web Release Date: January 29, 2010
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| 165-169
Reactions of Molybdenum Tetrahydrido Complex with Halohydrosilanes
S. Kuramochi, Y. Kido, S. Shioda, M. Minato,* M. Kakeya, and K. Osakada
[Full Text PDF(J-STAGE)]
The thermal reactions of [MoH4(dppe)2] (1, dppe = Ph2PCH2CH2PPh2) with RSiH2X afford [MoH2X(dppe){[Ph2PCH2CH2P(Ph)C6H4-o]RXSi-P,P,Si}] (R = Ph, X = Cl (5a); R = cyclo-C6H11, X = Cl (5b); and R = Ph, X = Br (6)) by synchronous activation of the Si–H bond and the ortho C–H bond of the dppe ligand. Reduction of the Si–Cl and Mo–Cl bonds in 5a with LiAlH4 gives the original complex 1 as a result of Si–C bond cleavage.
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Web Release Date: January 29, 2010
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| 170-172
Preparation and Reactivity of Vitamin B12–TiO2 Hybrid Catalyst Immobilized on a Glass Plate
H. Shimakoshi, M. Abiru, K. Kuroiwa, N. Kimizuka, M. Watanabe, and Y. Hisaeda*
[Full Text PDF(J-STAGE)]
The vitamin B12–TiO2 hybrid catalyst was effectively immobilized on a glass plate, and the immobilized catalyst shows efficient reactivity for various molecular transformations during irradiation by UV light.
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Web Release Date: January 29, 2010
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| 173-175
A Novel 3D Photoluminescent Silver(I) Coordination Polymer Featuring Unusual μ4-Bonded and Usual μ2-Bonded 2-Aminopyrazine
D. Sun, G.-G. Luo, N. Zhang, Q.-J. Xu, Z.-H. Wei, C.-F. Yang, L.-R. Lin, R.-B. Huang,* and L.-S. Zheng
[Full Text PDF(J-STAGE)]
[Supporting Information]
The coexistence of unusual μ4- and usual μ2-bonded modes of 2-aminopyrazine is observed for the first time in a novel 3D Ag(I) coordination polymer incorporating 1D {[Ag4(μ4-NHpyz)2]2+}n cylinders. Moreover, 1 exhibits photoluminescence properties.
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Web Release Date: January 29, 2010
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| 176-181
Incorporation of Non-Natural Amino Acids with Two Labeling Groups into the N-Terminus of Proteins
T. Egusa, K. Shiraga, T. Chiba, Y. Tokuda, I. Iijima, and T. Hohsaka*
[Full Text PDF(J-STAGE)]
[Supporting Information]
Non-natural amino acids with both fluorophore and biotin were designed, synthesized, and incorporated into the N-terminus of proteins in response to a UAG initiator codon in a cell-free protein synthesizing system.
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Web Release Date: January 29, 2010
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| 182-189
Easy Separation of Optically Active Secondary Alcohols by Enzymatic Hydrolysis of Soluble Polymer-Supported Carbonates
M. Okudomi, M. Shimojo, M. Nogawa, A. Hamanaka, N. Taketa, T. Nakagawa, and K. Matsumoto*
[Full Text PDF(J-STAGE)]
The enzyme-mediated enantioselective hydrolysis of middle molecular weight poly(ethylene glycol) (PEG)-supported carbonates is disclosed. In this system, the separation of the remaining (S)-substrate and the resulting (R)-alcohol was achieved by a simple procedure without any laborious column chromatography.
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Web Release Date: January 29, 2010
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| 190-194
Viscoelasticity, Leachability, and Antimicrobial Activity of Poly(vinyl chloride) Blended with Benzyldimethyltetradecylammonium Bis(2-ethylhexyl) Sulfonatosuccinate
H. Katano* and T. Tsukatani
[Full Text PDF(J-STAGE)] Open Access Article
 | Benzyldimethyltetradecylammonium salt with bis(2-ethylhexyl) sulfonatosuccinate (BA14BEHS) is a halogen-free low-volatile liquid material. BA14BEHS showed good compatibility with poly(vinyl chloride). BA14BEHS-blended poly(vinyl chloride) film exhibited low-leachability. Nevertheless, the film exhibited an antimicrobial performance. |
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Web Release Date: January 29, 2010
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| 195-197
Adsorption of Simazine on a Glassy Carbon Electrode
S. Pintado and J. M. R. Mellado*
[Full Text PDF(J-STAGE)]
Measurements of differential capacity vs. potential have been made for the herbicide simazine (2-chloro-4,6-bis(ethylamino)-1,3,5-triazine). The decrease in capacity was independent of the applied potential, so the adsorption is independent of the potential. The adsorption follows a Langmuir type isotherm.
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