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Vol. 82, No. 3 (March, 2009)
[PDF version]
| The Chemical Society of Japan Award for Creative Work for 2005 | Web Release Date: March 12, 2009
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| 285-302
Development of Chiral Spiro Ligands for Metal-Catalyzed Asymmetric Reactions
G. B. Bajracharya, M. A. Arai, P. S. Koranne, T. Suzuki, S. Takizawa, and H. Sasai*
[Full Text PDF(J-STAGE)]
Free Access Article
We have developed a range of novel chiral spiro ligands bearing N-heterocycles as metal-coordinating units. The metal complexes of these ligands displayed unprecedented activation of olefins that allowed us to develop several asymmetric transformations.
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| The Chemical Society of Japan Award for Young Chemists for 2006 | Web Release Date: March 12, 2009
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| 303-315
Rational Design and Functions of Electron Donor–Acceptor Dyads with Much Longer Charge-Separated Lifetimes than Natural Photosynthetic Reaction Centers
K. Ohkubo* and S. Fukuzumi
[Full Text PDF(J-STAGE)]
Free Access Article
Simple electron donor–acceptor dyads with a short spacer have been developed to attain a long-lived charge-separated state. The use of 9-mesityl-10-methylacridinium ion, which has 2 h charge-separation lifetime, enables the construction of highly efficient photocatalytic systems.
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Web Release Date: March 12, 2009
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| 316-332
Roles of Molecular Wires between Fullerenes and Electron Donors in Photoinduced Electron Transfer
O. Ito* and K. Yamanaka
[Full Text PDF(J-STAGE)]
Free Access Article
Roles of molecular wires connecting electron donors such as porphyrin and electron acceptors such as fullerene in photosensitizing electron-transfer processes are summarized in this account. High electron-transferring abilities of the π-conjugated molecular wires are revealed in connection with the MO energy levels and shape of the LUMO and HOMO of these molecular wires.
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Web Release Date: March 12, 2009
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| 333-337
Effects of Metal Doping on the Spin-Crossover Properties of an Iron(II) Complex with Extended π-Conjugated Schiff-Base Ligand Having an N4O2 Donor Set
Z. Yu, T. Kuroda-Sowa,* H. Kume, T. Okubo, M. Maekawa, and M. Munakata
[Full Text PDF(J-STAGE)]
Free Access Article
Metal-doping experiments in a spin-crossover system [Fe1−xMx(qnal)2]·CH2Cl2 with M = zinc(II) or nickel(II) reveal that the decrease of cooperativity in the spin transition occurred in both cases while only zinc(II) doping induces the decrease of critical temperature T1/2.
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Web Release Date: March 12, 2009
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| 338-346
ONIOM Study of the Mechanism of the Enzymatic Hydrolysis of Biodegradable Plastics
Y. Sakae, T. Matsubara,* M. Aida, H. Kondo, K. Masaki, and H. Iefuji
[Full Text PDF(J-STAGE)]
[Supporting Information]
 | We theoretically examined the reaction mechanism of the cutinase-like enzyme (CLE), which degrades biodegradable plastics very efficiently, using the ONIOM method. We revealed the electronic effects of amino acid residues and bound water in the catalytic reaction.
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Web Release Date: March 12, 2009
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| 347-351
Structural Isomers of {MnII(L)2[AgI(CN)2]2} (L = 3-Methylpyridine or 4-Methylpyridine), Bilayer Structure with Binuclear Argentophilic Interaction and Interpenetrated Structure with 1D Chain Argentophilic Interaction; Synthesis, Crystal Structure, and Magnetic Properties
T. Kosone, Y. Suzuki, C. Kanadani, T. Saito, and T. Kitazawa*
[Full Text PDF(J-STAGE)]
[Supporting Information]
Two novel 2D network coordination polymers {Mn(L)2[Ag(CN)2]2}n
(L = 3-methylpyridine or 4-methylpyridine) were synthesized and characterized by using single-crystal X-ray analysis and magnetic measurements. The coordination environment of the MnII ions and AgI atoms in complexes 1 and 2 are almost similar. However, coordination polymers for 1 and 2 are structural isomers with each other.
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Web Release Date: March 12, 2009
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| 352-357
Honeycomb Sheet Structures Achieving High Electrical Conductivities in Alkyl-Substituted Thiazolium Bis(2-thioxo-1,3-dithiole-4,5-dithiolato)nickelate(III) Complex Salts
E. Tomiyama,* K. Tomono, D. Hashizume, T. Wada, and K. Miyamura
[Full Text PDF(J-STAGE)]
[Supporting Information]
 | Three 1:1 complex salts of [Ni(dmit)2] anion with alkyl-substituted thiazolium cations formed honeycomb sheet structures that exhibited high electrical conductivities. The IR spectra showed that the formal charge of anion is shifted positively from −1.
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Web Release Date: March 12, 2009
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| 358-363
Structures and Magnetic Properties of Dinuclear Copper(II) Complexes Containing a Bulky Diamine Ligand, 1,2-Dipiperidinoethane
M. Arakawa-Itoh, K. Tokuman, Y. Mori, T. Kajiwara, M. Yamashita, and Y. Fukuda*
[Full Text PDF(J-STAGE)]
[Supporting Information]
A reaction of copper(II) perchlorate with a bulky diamine, 1,2-dipiperidinoethane yields two dinuclear complexes: di-μ-hydroxo dinuclear complex 1 and di-μ-alkoxo dinuclear complex 2. Structures and magnetic properties of both complexes are studied.
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Web Release Date: March 12, 2009
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| 364-380
Stereoselective Syntheses of (E)-α,β-Didehydroamino Acid and Peptide Containing Its Residue Utilizing Oxazolidinone Derivative
M. Kometani, K. Ihara, R. Kimura, and H. Kinoshita*
[Full Text PDF(J-STAGE)]
Reaction of methyl N-Boc-N-phenoxycarbonylglycinate with various aldehydes afforded the corresponding cis-4,5-oxazolidinone derivatives, which were effectively converted to (E)-α,β-didehydroamino acids by means of base.
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Web Release Date: March 12, 2009
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| 381-392
Conversion of Alcohols to Alkyl Aryl Sulfides by a New Type of Oxidation–Reduction Condensation Using Phenyl Diphenylphosphinite
K. Kuroda, Y. Maruyama, Y. Hayashi,* and T. Mukaiyama*
[Full Text PDF(J-STAGE)]
A new type of oxidation–reduction condensation of alcohols with arenethiols by the combined use of PhOPPh2 and oxidant is described. In this reaction, chiral secondary and tertiary alcohols are converted into the corresponding sulfides with inversion of configuration.
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Web Release Date: March 12, 2009
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| 393-400
Palladium-Catalyzed 1-Methylene-2-propenylation Reactions of Aryl Bromides with 3,4-Alkadien-1-ols via Carbon–Carbon Bond Cleavage for the Synthesis of 2-Aryl-1,3-butadiene Derivatives
J. Imoto, S. Hayashi, K. Hirano, H. Yorimitsu,* and K. Oshima*
[Full Text PDF(J-STAGE)]
Treatment of aryl bromides with 3,4-alkadien-1-ols in the presence of a palladium catalyst results in 1-methylene-2-propenyl group transfer to aryl bromides by taking advantage of palladium-catalyzed retro-allylation as an sp3C–sp3C bond cleavage reaction.
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Web Release Date: March 12, 2009
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| 401-407
Photoresponse of GaN:ZnO Electrode on FTO under Visible Light Irradiation
H. Hashiguchi, K. Maeda, R. Abe, A. Ishikawa, J. Kubota, and K. Domen*
[Full Text PDF(J-STAGE)]
 | The photoelectrochemical properties of a GaN:ZnO solid solution coated on conductive glass are investigated. The electrode exhibits anodic photocurrent under visible light, indicating functionality as an n-type semiconductor electrode. The evolution of H2 and O2 is confirmed during photoelectrolysis. |
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Web Release Date: March 12, 2009
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| 408-412
Preparation of Iron-Containing Hectorite-Like Swelling Silicate
M. Ogawa,* T. Matsutomo, and T. Okada
[Full Text PDF(J-STAGE)]
Iron-containing hectorite-like layered silicate was synthesized from LiF, Mg(OH)2, colloidal silica and FeCl3. The increase of the cation-exchange capacity from 70 to 90 meq (100 g clay)−1 was observed by the reduction of incorporated iron.
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Web Release Date: March 12, 2009
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| 413-415
Synthesis of 3,5-Dibromopyridines with –NH(CH2)mSO3Na (m = 3 and 4) Groups at the 2-Position of Pyridine and Use of the Dibromo Compound for Polymer Synthesis
K. Shiramizu, Y. Harada, and T. Yamamoto*
[Full Text PDF(J-STAGE)]
Reactions of 2-amino-3,5-dibromopyridine with sultones gave 3,5-dibromopyridines with –NH(CH2)mSO3Na (m = 3 and 4) groups at the 2-position of pyridine. The obtained compound served as a starting material for polypyridine with –NH(CH2)mSO3H side chain.
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Web Release Date: March 12, 2009
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| 416-418
Nanogel–Calcium Phosphate Hybrid Nanoparticles with Negative or Positive Charges for Potential Biomedical Applications
S. Yamane, A. Sugawara, Y. Sasaki, and K. Akiyoshi*
[Full Text PDF(J-STAGE)]
Self-assembled polysaccharide nanogels with negative or positive charge were used as templates for mineralization of calcium phosphate for potential biomedical application. Nanogel–calcium phosphate hybrid nanoparticles with negative or positive charge were prepared.
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