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BCSJ Award Article (2009)
The Bulletin of the Chemical Society of Japan, Vol. 82 (No. 1-12)
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2009 Vol. 82 Dec. |
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1470-1476 |
Macroscopic Phase Separation in a Tetraethoxysilane–Water Binary Sol–Gel System |
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K. Kajihara,* S. Kuwatani, R. Maehana, and K. Kanamura
[Full Text PDF(J-STAGE)] Free Access Article
Dependence of macroscopic gel morphology on solution composition and preparation conditions is examined for a phase separating mixture of tetraethoxysilane and water, a simple gelling system attractive for preparation of monolithic silica xerogels.
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2009 Vol. 82 Nov. |
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1341-1346 |
Photoinduced Hydrogen-Evolution System with an Antibody–Porphyrin Complex as a Photosensitizer |
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H. Yamaguchi, T. Onji, H. Ohara, N. Ikeda, and A. Harada*
[Full Text PDF(J-STAGE)] Free Access Article
A complex between a monoclonal antibody for porphyrin and zinc–porphyrin was utilized to construct an energy conversion system. Hydrogen could be efficiently produced by the whole antibody–porphyrin complex.
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2009 Vol. 82 Oct. |
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1227-1231 |
In Situ Scanning Tunneling Microscopy Observation of Metal–Cluster Redox Interconversion and CO Dissociation Reactions at a Solution/Au(111) Interface |
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H. Noda, H. Uehara, M. Abe,* T. Michi, M. Osawa,* K. Uosaki,* and Y. Sasaki*
[Full Text PDF(J-STAGE)] [Supporting Information]
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Potential-induced reversible redox interconversion and irreversible ligand-substitution reaction of triruthenium clusters on an Au(111) electrode surface have been successfully visualized at a monolayer level with use of in situ STM under electrochemical conditions. |
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2009 Vol. 82 Sep. |
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1083-1102 |
Catalytic Mannich-Type Reactions of Sulfonylimidates |
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R. Matsubara, F. Berthiol, H. V. Nguyen, and S. Kobayashi*
[Full Text PDF(J-STAGE)] [Supporting Information]
DBU-catalyzed reactions of sulfonylimidates with protected imines in DMF provided the adducts in high yields with high anti selectivity. The reactions catalyzed by Mg(OtBu)2 in DMF provided the adducts with high anti selectivity, while those catalyzed by [Sr(HMDS)2]2 gave syn selectivity.
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2009 Vol. 82 Aug. |
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931-945 |
Chemistry of Anthracene–Acetylene Oligomers. XIII. Synthesis, Structures, and Spectroscopic Properties of All Possible 1,8-Anthrylene Cyclic Tetramers with Acetylene and Diacetylene Linkers |
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S. Toyota,* H. Miyahara, M. Goichi, S. Yamasaki, and T. Iwanaga
[Full Text PDF(J-STAGE)]
Five title oligomers with one to four diacetylene linkers were synthesized by macrocyclization with coupling reactions. The structures and the dynamic behavior are influenced by the number and position of the diacetylene linkers. Enantiomers of chiral cyclic oligomers were resolved by chiral HPLC.
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2009 Vol. 82 Jul. |
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793-805 |
Synthesis and Properties of Stable 1,2-Bis(metallocenyl)disilenes: Novel d–π Conjugated Systems with a Si=Si Double Bond |
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A. Yuasa, T. Sasamori, Y. Hosoi, Y. Furukawa, and N. Tokitoh*
[Full Text PDF(J-STAGE)]
Stable 1,2-bis(metallocenyl)disilenes were synthesized for the first time and characterized by spectroscopic and X-ray crystallographic analyses. They are novel d–π conjugated systems containing a disilene unit.
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2009 Vol. 82 Jun. |
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664-674 |
Effect of Hydration on the Very Slow Droplet–Lamellar Transition in Dioleylsulfosuccinate/Decane/Water System: A Small Angle X-ray Scattering Study |
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S. K. Ghosh, N. Ichiyanagi, H. Okabayashi,* A. Yoshino, T. Takeda, and C. J. O’Connor
[Full Text PDF(J-STAGE)]
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In the sodium dioleylsulfosuccinate (SDOleS)–decane–water system with various molar ratios of water and SDOleS (X = [H2O]/[SDOleS]), the droplet lamellar transition occurs very slowly and spontaneously depending upon X. |
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2009 Vol. 82 May |
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555-562 |
Electrophilic Substitution of Thiophenes with Arylpalladium(II) and Platinum(II) Complexes: Mechanistic Studies on Palladium-Catalyzed CH Arylation of Thiophenes |
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A. Sugie, H. Furukawa, Y. Suzaki, K. Osakada, M. Akita, D. Monguchi, and A. Mori*
[Full Text PDF(J-STAGE)]
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Electrophilic substitution of thiophene derivatives with arylpalladium(II) and platinum(II) complexes was observed. These results suggest palladium-catalyzed CH arylation of thiophenes demonstrated by our group proceeds through electrophilic substitution. |
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2009 Vol. 82 Apr. |
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439-445 |
Phase Separation of Phosphatidylcholine–Water Systems below the Main Transition Temperature Induced by Monovalent Ions |
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K. Fukada* and N. Miki
[Full Text PDF(J-STAGE)]
A new phase transition of DPPC bilayers accompanied by a jump in lamellar repeating distance (D) was found for the first time by adding a large amount of 1:1 electrolyte in aqueous medium.
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2009 Vol. 82 Mar. |
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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 |
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Z. Yu, T. Kuroda-Sowa,* H. Kume, T. Okubo, M. Maekawa, and M. Munakata
[Full Text PDF(J-STAGE)]
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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2009 Vol. 82 Feb. |
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182-186 |
Molecular Structure of Chlorocycloheptane in Inclusion Compound with 9,9′-Bianthryl and Gelation during Crystallization |
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S. Toyota,* Y. Okamoto, T. Ishikawa, T. Iwanaga, and M. Yamada
[Full Text PDF(J-STAGE)] [Supporting Information]
9,9′-Bianthryl formed an inclusion compound with chlorocycloheptane in a 2:1 ratio, where two guest molecules are accommodated in each cavity in either of two twist-chair forms. Under certain conditions, the gelation was followed by crystallization.
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2009 Vol. 82 Jan. |
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50-57 |
Elongated Lifetime of Unstable Colored Species by Intermolecular Hydrogen Bond Formation in Photochromic Crystals |
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K. Johmoto, A. Sekine,* H. Uekusa, and Y. Ohashi
[Full Text PDF(J-STAGE)]
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Three crystal forms of N-3,5-di-tert-butylsalicylidene-3-carboxyaniline showed different photochromic character. X-ray analysis revealed the unstable colored species is the trans-keto form. The lifetime of the trans-keto form is strongly influenced by the intermolecular hydrogen bond formation of the trans-keto form.
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