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Vol. 81, No. 12 (December, 2008)
[PDF version]
| The Chemical Society of Japan Award for 2007 |
Web Release Date:
December 12, 2008
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1535-1553
Metal-Catalyzed Reactions of Organoboronic Acids and Esters
N. Miyaura
[Full Text PDF(J-STAGE)] Free Access Article
Syntheses of organoboronic acid derivatives via metal-catalyzed hydroboration and diboration of alkenes and alkynes, or borylation of C–halogen bonds and C–H bonds, and synthetic applications of 1-alkenyl-, aryl-, allyl-, and benzylboronic acids or esters thus synthesized.
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| The Chemical Society of Japan Award for Creative Work for 2006 |
| Web Release Date:
December 12, 2008
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1554-1566
Molecular Self-Assembly into One-Dimensional Nanotube Architectures and Exploitation of Their Functions
T. Shimizu
[Full Text PDF(J-STAGE)] Free Access Article
This review article focuses on the self-assembly of amphiphilic molecules into discrete, hollow cylindrical tubular architectures. Recent progress on dimension and size control of the self-assembled nanotubes, massive production, and their novel functions are also described.
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| Web Release Date:
December 12, 2008
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1567-1574
Preparation and Characterization of Spherical and Balloon-Like Calcium Phosphate Particles
K. Kandori,* K. Tada, M. Fukusumi, and Y. Morisada
[Full Text PDF(J-STAGE)] Free Access Article
Calcium phosphate particles were prepared by aging a solution of CaCl2 and Na5P3O10 at 100–150 °C. The solid spherical particles were produced up to the aging temperature of 115 °C but transparent balloon-like hollow spheres were precipitated at 120 °C.
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| Web Release Date:
December 12, 2008
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1575-1579
Matrix Isolation Infrared Spectroscopic and Density Functional Theory Studies on the Reactions of Dysprosium Hydride with Carbon Monoxide
Y.-L. Teng and Q. Xu*
[Full Text PDF(J-STAGE)]
Reactions of laser-ablated dysprosium hydride with carbon monoxide molecules in excess argon have been studied by infrared spectroscopy. Product HDyCO has been formed in the present experiments and characterized.
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| Web Release Date:
December 12, 2008
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| 1580-1583
Specific Fragmentation of K-Shell Excited/Ionized Pyridine Derivatives Studied by Electron Impact: 2-Amino-3-methylpyridine and 3-Methylpyridine
K. Okada,* M. Sakai, and K. Ohno
[Full Text PDF(J-STAGE)]
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Fragmentation of 2-amino-3-methylpyridine has been investigated by electron impact in the carbon and nitrogen K-shell excitation regions. Yields of the NCNH2+ and C5H3+/C4HN+ fragment ions characteristically increase at the N 1s edge.
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| Web Release Date:
December 12, 2008
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| 1584-1588
High Efficiencies for Singlet Oxygen Generation of Fullerenes and Their Phototoxicity
Y. Iizumi, T. Okazaki,* M. Zhang, M. Yudasaka, and S. Iijima
[Full Text PDF(J-STAGE)] [Supporting Information]
Near-infrared emission spectroscopy revealed that the singlet oxygen generation efficiencies for water-soluble fullerenes are 2–3 times higher than that of well-known photosensitizer, rose bengal. They also show substantial phototoxicities, which will be useful for photodynamic therapy applications.
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| Web Release Date:
December 12, 2008
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| 1589-1594
Structural Effect of Amphiphilic Crown Ether Azoprobes on Alkali Metal Ion Recognition and Aggregation Behavior in Water
F. Sato, M. Tsukano, K. Sakamoto, W. Umemoto, T. Hashimoto, and T. Hayashita*
[Full Text PDF(J-STAGE)] [Supporting Information]
H-aggregate formation triggered by Cs+ or K+ ion. An azoprobe with a hexyl spacer unit showed the best performance.
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| Web Release Date:
December 12, 2008
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| 1595-1598
Transformation of a Modest Luminescent Chemosensor into a Light-Up Probe: The Overload Displacement Approach
M. Schmittel* and H. Lin
[Full Text PDF(J-STAGE)] [Supporting Information]
As a proof of principle for the overload displacement strategy a luminescent ruthenium(II) azacrown ether phenanthroline with restrained sensoric properties has been converted into a light-up chemosensor for lead(II) ions by overloading the system with copper(II) ions.
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| Web Release Date:
December 12, 2008
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| 1599-1604
An Efficient Identification Method of a Specific Binding Protein for a Bioactive Compound Using On-Bead Digestion and Mass Spectrometry
M. Sakai,* M. Furuya, H. Endo, K. Yamaoka, S. Kondo, and T. Koike
[Full Text PDF(J-STAGE)] [Supporting Information]
This report describes a protocol to identify a specific binding protein for a bioactive compound (BAC) using BAC-affinity beads and nanoflow liquid chromatography tandem mass spectrometry (nano-LC/MS/MS). In this study, two examples for benzenesulfonamide- and methotrexate-binding proteins are described.
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| Web Release Date:
December 12, 2008
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| 1605-1615
Noncovalent Z…Z (Z = O, S, Se, and Te) Interactions: How Do They Operate to Control Fine Structures of 1,8-Dichalcogene-Substituted Naphthalenes?
S. Hayashi and W. Nakanishi*
[Full Text PDF(J-STAGE)] [Supporting Information]
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Factors to control fine structures of 1-RZ-8-R′ZC10H6 (Z = O, S, Se, and Te; R, R′ = Me and Ph), caused by noncovalent n(Z)…n(Z) interactions, together with p(Z)–π(Nap/Ph) conjugations, are elucidated by structural determinations and theoretical investigations.
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| Web Release Date:
December 12, 2008
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| 1616-1620
Anti-Inflammatory Polyoxygenated Steroids from the Soft Coral Sinularia sp.
J.-H. Su, C.-L. Lo, Y. Lu, Z.-H. Wen, C.-Y. Huang, C.-F. Dai, and J.-H. Sheu*
[Full Text PDF(J-STAGE)]
Four new polyhydroxylated steroids (1–4) were isolated from a Formosan soft coral Sinularia sp. Compounds 1 and 2 have shown significant inhibition of the accumulation of the pro-inflammatory COX-2 protein of LPS-stimulated RAW264.7 macrophage cells at 10 μM.
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| Web Release Date:
December 12, 2008
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| 1621-1628
Remarkable Substituent Effects on the Oxidizing Ability of Tetraarylbismuthonium Tetrafluoroborates in Alcohol Oxidation
Y. Matano,* T. Suzuki, T. Iwata, T. Shinokura, and H. Imahori
[Full Text PDF(J-STAGE)]
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Substituent effects on the oxidizing ability of tetraarylbismuthonium tetrafluoroborates in alcohol oxidation are reported. The mesityl- and 2,6-xylyltriarylbismuthonium salts have proven to convert primary and secondary alcohols to the corresponding carbonyl compounds with high efficiency and high selectivity.
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| Web Release Date:
December 12, 2008
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| 1629-1637
1- and 3-Nitreno-2-naphthylcarbenes. A Combined Experimental and Computational Study
H. Tomioka,* N. Nakane, and J. Tatsugi
[Full Text PDF(J-STAGE)]
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The structures, energies, and thermal stabilities of a singlet, a triplet, and a quintet states of naphthalene bearing nitrene and carbene units on adjacent (1,2- and 3,2-) positions were examined by DFT methods and attempts were made to characterize them by matrix-isolation spectroscopy.
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| Web Release Date:
December 12, 2008
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| 1638-1646
New Polyoxygenated Briaranes from Octocorals Briareum excavatum and Ellisella robusta
T.-L. Hwang, M.-R. Lin, W.-T. Tsai, H.-C. Yeh, W.-P. Hu, J.-H. Sheu,* and P.-J. Sung*
[Full Text PDF(J-STAGE)]
Six new briaranes, briaexcavatins Q–T (1–4) and robustolides J (5) and K (6), were isolated from a cultured octocoral Briareum excavatum and a sea whip gorgonian coral Ellisella robusta, respectively. The structures of briaranes 1–6 were established by spectroscopic methods. Briarane 3 exhibited weak cytotoxicity toward CCRF-CEM tumor cells and briaranes 5 and 6 displayed inhibitory effects on superoxide anion generation by human neutrophils.
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| Web Release Date:
December 12, 2008
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| 1647-1656
Characterization of Spinel Zinc Titanium Nitride Oxide as a Visible Light Driven Photocatalyst
T. Hisatomi, K. Teramura, J. Kubota, and K. Domen*
[Full Text PDF(J-STAGE)]
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The spinel ZnxTiOyNz shows photocatalytic activity under visible light irradiation (λ > 420 nm) in the presence of sacrificial reagents. The visible light response of the nitride oxide is attributed to incorporation of N species into the spinel structure.
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| Web Release Date:
December 12, 2008
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| 1657-1662
Effect of Bulk Natural Convection on Chemical Processes Studied in a Tight Polymer Gel Reactor Composed of Polysaccharide Network and a Large Excess of Water
H. Ueno, N. Gokan, Y. Nakano, and M. Kaneko*
[Full Text PDF(J-STAGE)]
In a tight polysaccharide gel containing a large excess of water, bulk natural convection is prohibited so that molecules are transported only by self-diffusion. The effect of natural convection on various chemical processes was investigated by utilizing tight gels and discussed.
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| Web Release Date:
December 12, 2008
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| 1663-1668
Fabrication of Conjugated Polymer Hybrid Thin Films with Radially Oriented Aluminosilicate Nanofibers by Spin-Assembly
N. Jiravanichanun, K. Yamamoto, H. Yonemura, S. Yamada, H. Otsuka,* and A. Takahara*
[Full Text PDF(J-STAGE)]
Multilayer assembly films of aluminosilicate nanofibers and water-soluble poly(p-phenylene) were fabricated by two methods, layer-by-layer assembly and spin-assembly. The spin-assembly method gave significant orientation of imogolite nanofibers aligned in the radial direction, while imogolite nanofibers were randomly networked in the LBL film.
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| Web Release Date:
December 12, 2008
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| 1669-1674
Improvement of Co3O4 Nanoparticle Synthesis in Apoferritin Cavity by Outer Surface PEGylation
R. Tsukamoto, M. Muraoka, Y. Fukushige, H. Nakagawa, T. Kawaguchi, Y. Nakatsuji, and I. Yamashita*
[Full Text PDF(J-STAGE)]
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The outer surface of horse spleen apoferritin (HsAFr) was chemically modified by poly(ethylene glycol). The PEGylated HsAFr dramatically suppressed the bulk precipitation during the one-pot synthesis of the Co3O4 core and achieved a high yield of homogeneous Co3O4 nanoparticles.
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| Web Release Date:
December 12, 2008
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| 1675-1680
Electrocatalytic Reduction of Nitrate Using Cu–Pd and Cu–Pt Cathodes/H+-Conducting Solid Polymer Electrolyte Membrane Assemblies
M. A. Hasnat, I. Ishibashi, K. Sato, R. Agui, T. Yamaguchi, K. Ikeue, and M. Machida*
[Full Text PDF(J-STAGE)]
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Electrocatalytic reduction of nitrate ions (NO3−) was carried out over Cu–Pd and Cu–Pt bimetallic cathodes, which were deposited on a Nafion-117 H+-conducting polymer membrane.
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