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Vol. 82, No. 4 (April, 2009)
[PDF version]
| The Chemical Society of Japan Award for 2006 | Web Release Date: April 11, 2009
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| 419-438
Structure and Function of Molecular Assembly. A Personal Reminiscence
Y. Aoyama
[Full Text PDF(J-STAGE)]
Free Access Article
In this account is reviewed the outline of the author’s research work over the last 35 years, covering small host–guest systems in apolar organic media, infinite solid systems, huge but finite nano systems in aqueous media, and manipulated biological systems.
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Web Release Date: April 11, 2009
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| 439-445
Phase Separation of Phosphatidylcholine–Water Systems below the Main Transition Temperature Induced by Monovalent Ions
K. Fukada* and N. Miki
[Full Text PDF(J-STAGE)]
Free Access Article
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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Web Release Date: April 11, 2009
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| 446-452
Proton-Transfer Mechanism in 2-Thioxoimidazolidin-4-one: A Competition between Keto/Enol and Thione/Thiol Tautomerism Reactions
S. Bagheri and H. Roohi*
[Full Text PDF(J-STAGE)]
 | The direct and water-assisted proton-transfer mechanisms in 2-thioxoimidazolidin-4-one (1,3-IM) via two keto/enol and thione/thiol mechanisms were investigated by using DFT (B3LYP) and ab initio (MP2) methods in the gas phase. |
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Web Release Date: April 11, 2009
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| 453-457
Determination of Binding Parameters and Mode of Ferrocenyl Chalcone–DNA Interaction
A. Shah, R. Qureshi,* A. M. Khan, F. L. Ansari, and S. Ahmad
[Full Text PDF(J-STAGE)]
 | The planar 4-nitrophenyl-2-propen-1-one part of 1-ferrocenyl-3-(4-nitrophenyl)-2-propen-1-one intercalates into the base-stacking domain of DNA double helix and the non planar ferrocenyl group fits into the grooves of DNA. |
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Web Release Date: April 11, 2009
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| 458-466
Enantioselective Assembly Structures of Copper(II) and Zinc(II) Complexes with the 1:1 Condensation Products of imidazole-4-carbaldehyde Derivatives and dl-Phenylalanine
T. Iihoshi, T. Sato, M. Towatari, N. Matsumoto,* and M. Kojima
[Full Text PDF(J-STAGE)]
Copper(II) and zinc(II) complexes with the tridentate ligands of 1:1 condensation products of dl-phenylalanine and imidazole-4-carbaldehyde derivatives (imidazole-4-carbaldehyde, 2-methylimidazole-4-carbaldehyde, and 5-methylimidazole-4-carbaldehyde) were prepared. They assumed homochiral chain structures constructed by intrachain imidazole–carboxylato hydrogen bonds or by intermolecular coordination bonds.
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Web Release Date: April 11, 2009
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| 467-471
A Ferromagnetic Chain of Imidazolato-Bridged One-Dimensional Copper(II) Complex
T. Yoshida, M. Towatari, T. Sato, N. Matsumoto,* N. Re, and J. Mrozinski
[Full Text PDF(J-STAGE)]
[2-Ethoxy-6-{[3-(2-methyl-4-imidazolylmethyleneamino)propyl]iminomethyl}phenolato]copper(II) perchlorate [CuHL]ClO4 and its deprotonated complex [CuL]n were prepared. The structure of [CuHL]ClO4 has a square-planar coordination geometry, while that of [CuL]n assumes an imidazolato-bridged zigzag-chain structure. The magnetic data demonstrate that [CuL]n is a ferromagnetic chain.
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Web Release Date: April 11, 2009
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| 472-474
Photochemical Modulation of Europium Ion Fluorescence Using a Tetraazamacrocyclic Derivative Bearing a Spirobenzopyran and Three Carboxymethyl Moieties
K. Machitani, Y. Nakahara, and K. Kimura*
[Full Text PDF(J-STAGE)]
The fluorescence properties of a Eu3+ complex with a tetraazamacrocyclic derivative bearing a spirobenzopyran and three carboxymethyl moieties were investigated. The enhanced fluorescence of Eu3+, which proved that the spirobenzopyran moiety worked as an antenna for the sensitization, was controlled photochemically.
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Web Release Date: April 11, 2009
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| 475-481
Photolysis of Indan-1,2-dione Derivatives in Oxygen-Doped Argon Matrix at Low Temperature
T. Itoh, J. Tatsugi,* and H. Tomioka*
[Full Text PDF(J-STAGE)]
[Supporting Information]
Photolysis of indan-1,2,3-trion (1a), benzo[b]furan-2,3-dione (1b), and N-methylisatin (1c) in argon doped with 20% oxygen at 10 K gave cyclic diacyl peroxide formed by trapping of initial diradical by molecular oxygen, which provides useful information concerning the reactivities of cyclic ketones toward type I cleavage.
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Web Release Date: April 11, 2009
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| 482-488
Mechanistic Study of Oxidative Aromatization Using Activated Carbon–Molecular Oxygen System in the Synthesis of 2-Arylbenzazoles: Focus on the Role of Activated Carbon
Y. Kawashita, J. Yanagi, T. Fujii, and M. Hayashi*
[Full Text PDF(J-STAGE)]
[Supporting Information]
Tailor-made activated carbons were characterized to clarify their properties. After examining their effects on reactivity in the oxidative aromatization, we found that the essential role of activated carbon is concerned with surface oxygen groups such as carbonyl groups on the surface of activated carbon.
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Web Release Date: April 11, 2009
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| 489-493
Photochromic Inclusion Crystals of Phosphonium Halides with Aromatic Alcohols
K. Tanaka,* H. Itoh, A. Nakashima, D. Wójcik, and Z. Urbanczyk-Lipkowska*
[Full Text PDF(J-STAGE)]
Some inclusion crystals of phosphonium salts with aromatic alcohols were shown to exhibit thermally reversible photochromism in the solid state.
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Web Release Date: April 11, 2009
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| 494-503
Formation and Decay Dynamics of Vitamin E Radical in the Antioxidant Reaction of Vitamin E
K. Mukai,* A. Ouchi,* A. Mitarai, K. Ohara, and C. Matsuoka
[Full Text PDF(J-STAGE)]
 | In order to understand the dynamics of antioxidant actions of vitamin E (α-, β-, γ-, and δ-tocopherols) in biological systems, kinetic study of the formation and decay reactions of vitamin E radicals (α-, β-, γ-, and δ-tocopheroxyls) has been performed in organic solvents, using stopped-flow spectrophotometry. |
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Web Release Date: April 11, 2009
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| 504-508
Modification of Spectroscopic Properties and Catalytic Activity of Escherichia coli CueO by Mutations of Methionine 510, the Axial Ligand to the Type I Cu
S. Kurose, K. Kataoka,* N. Shinohara, Y. Miura, M. Tsutsumi, S. Tsujimura, K. Kano, and T. Sakurai
[Full Text PDF(J-STAGE)]
 | Replacement of Met510, the axial ligand to the type I Cu in a cuprous oxidase CueO, with Leu afforded the three-coordinated type I Cu, while Gln, Ala, and Thr mutations led to the type I Cu with the oxygen ligands. |
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Web Release Date: April 11, 2009
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| 509-513
Accelerated Saponification of Methyl Dodecanoate with Aqueous Sodium Hydroxide Solution in the Presence of Alcohols in a Silicone Rubber Tube as a Flow-Type Reactor
A. Kamiouji, K. Hashimoto, H. Kominami,* and S. Ito
[Full Text PDF(J-STAGE)]
 | Saponification, a typical two-phase reaction, in a silicone tube was drastically accelerated in the presence of a small amount of alcohols and the reaction rates of saponification in the tube were much larger than those in a traditional batch system. |
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Web Release Date: April 11, 2009
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| 514-518
Sensitization of NaMO3 (M: Nb and Ta) Photocatalysts with Wide Band Gaps to Visible Light by Ir Doping
A. Iwase, K. Saito, and A. Kudo*
[Full Text PDF(J-STAGE)]
 | NaMO3:Ir/A (M: Nb and Ta, A: Sr, Ba, and La) photocatalysts showed H2 or O2 evolution under visible light irradiation. These photocatalytic reactions proceeded accompanied by electronic transition from the electron donor levels formed with Ir3+ to the conduction bands. |
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Web Release Date: April 11, 2009
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| 519-527
Synthesis of Optically Active Spiro Compounds with a 3,3′-(4H,4′H)-Spirobi(2H-naphtho[1,2-b]pyran) Skeleton and Their Applications as Chiral Dopants for Nematic Liquid Crystals
K. Tojo,* T. Arisawa, Y. Aoki, and D. Terunuma
[Full Text PDF(J-STAGE)]
 | Chiral dopants with an optically active 3,3′-(4H,4′H)-spirobi(2H-naphtho[1,2-b]pyran) skeleton for nematic liquid crystals were synthesized, and their helical twisting power (HTP) values were evaluated. It was found that optically active spiro chiral dopants have the potential for inducing large HTP values. |
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Web Release Date: April 11, 2009
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| 528-535
CdS Nanoparticles Exhibiting Quantum Size Effect by Dispersion on TiO2: Photocatalytic H2 Evolution and Photoelectrochemical Measurements
K. Ogisu, K. Takanabe, D. Lu, M. Saruyama, T. Ikeda, M. Kanehara, T. Teranishi, and K. Domen*
[Full Text PDF(J-STAGE)]
[Supporting Information]
 | CdS quantum dots (Q-CdS) with a narrow particle size distribution were immobilized on an oxide substrate in attempt to preserve particle size and optical property during photoelectrochemical reaction in Na2S–Na2SO3 solution under visible light. |
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Web Release Date: April 11, 2009
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| 536-538
Pressure Dependence of Aggregation State of (DMPC/Cholesterol) Mixed Monolayer Based on AFM Observation
Y. Tagami, T. Matsufuji, H. Ikigai, T. Narita, and Y. Oishi*
[Full Text PDF(J-STAGE)]
AFM images of a DMPC/cholesterol mixed monolayer revealed a macroscopically morphological homogenization of the monolayer by compression and an appearance of a nanoscopically separated structure on the macroscopically homogeneous surface.
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