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Vol. 81, No. 11 (November, 2008)
[PDF version]
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November 12, 2008
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1337-1376
Nano/Micro Patterning of Inorganic Thin Films
K. Koumoto,* N. Saito, Y. F. Gao, Y. Masuda, and P. X. Zhu
[Full Text PDF(J-STAGE)] Free Access Article
Novel processes of the site-selective deposition of ceramic oxide thin films on the patterned self-assembled monolayer (SAM) template are investigated. Nucleation and growth of the ceramics in aqueous solutions on the functionalized surfaces are controlled by using SAMs.
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November 12, 2008
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| 1377-1392
Recent Developments of Boryl Anions: Boron Analogues of Carbanion
M. Yamashita* and K. Nozaki*
[Full Text PDF(J-STAGE)] Free Access Article
Chemistry of “boryl anion,” which has nucleophilicity toward electrophiles, has been reviewed. Boryl anion having a lithium cation was transferred to other metal cations to form the corresponding boryl anion family.
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November 12, 2008
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1393-1401
Reactions and Mechanistic Studies of Rhenium-Catalyzed Insertion of α,β-Unsaturated Carbonyl Compounds into a C–H Bond
Y. Kuninobu,* Y. Nishina, K. Okaguchi, M. Shouho, and K. Takai*
[Full Text PDF(J-STAGE)] [Supporting Information] Free Access Article
A rhenium complex, [ReBr(CO)3(thf)]2, catalyzes the insertion of α,β-unsaturated carbonyl compounds into a C–H bond of aromatic compounds. When imines are employed as the aromatic substrates, sequential cyclization proceeds, and indene derivatives are obtained. The reaction mechanisms are also investigated.
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November 12, 2008
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1402-1414
Effect of Hydration and Self-Association on the Reaction Mechanism of Proton Transfer in Methimazole: A Theoretical Study
H. Roohi,* S. Baghery, and S. G. Hosseini
[Full Text PDF(J-STAGE)]
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To investigate the effect of hydration and self-association on the reaction mechanism of proton transfer in methimazole (3-methyl-1H-imidazole-2(3H)-thione) and 1H-imidazole-2(3H)-thione, quantum chemical calculations were performed at the B3LYP/6-311++G(2d,2p) level of theory.
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November 12, 2008
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| 1415-1422
The Origin of Cis Effect in 1,2-Dihaloethenes: The Quantitative Comparison of Electron Delocalizations and Steric Exchange Repulsions
T. Yamamoto,* D. Kaneno, and S. Tomoda*
[Full Text PDF(J-STAGE)] [Supporting Information]
The dominant orbital–orbital interaction in 1,2-dihaloethenes (XHC=CHX; X=F, Cl, or Br) was theoretically studied using natural bond orbital (NBO) analysis to reveal that the electron delocalization, not the steric exchange repulsion, has the largest responsibility for their “cis effect.”
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November 12, 2008
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| 1423-1453
Categorization and Enumeration of Achiral and Chiral Alkanes of a Given Carbon Content by Considering Internal Branching
S. Fujita
[Full Text PDF(J-STAGE)]
Centroidal and bicentroidal alkanes are combinatorially enumerated as achiral and chiral three-dimensional structures, where the stereoisomer numbers are itemized with respect to carbon content as well as to the numbers of primary (1°), secondary (2°), tertiary (3°), and quaternary (4°) carbon atoms, e.g.
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November 12, 2008
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| 1454-1460
Synthesis and Structural Characterization of a Dinuclear Palladium(II) Complex with N,N ′,N ′′,N ′′′-Tetrakis(2-p-toluenesulfonamidoethyl)cyclam
S. Wada, T. Kotera, and M. Mikuriya*
[Full Text PDF(J-STAGE)]
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Dinuclear palladium(II) complex with 1,4,8,11-tetrakis(2-p-toluenesulfonamidoethyl)-1,4,8,11-tetraazacyclotetradecane (H4tstaec) was synthesized and characterized by measurements of the infrared and electronic spectrum. Crystal structures of H4tstaec and [Pd2(tstaec)]·2CH3CN were determined by X-ray diffraction method, where the cyclam ring takes a trans IV conformation. DFT calculations were performed based on these crystal structures.
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| Web Release Date:
November 12, 2008
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| 1461-1464
Microsphere vs. Microbelt Morphology of Ionic Palladium(II) Complexes
T. H. Noh, I. S. Chun, Y.-A Lee, S. Ahn, J. Hong, and O.-S. Jung*
[Full Text PDF(J-STAGE)] [Supporting Information]
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Assembly of ionic metal complexes in an aqueous mixture of solvents was proved to be an effective strategy for the formation of anion-dependent monodisperse morphology. [PdII(L)(tmen)]2X4 (L = bis[(4-isonicotinoyloxy)phenyl]sulfide; tmen = N,N,N ′,N ′-tetramethylethane-1,2-diamine; X=NO3 and ClO4) were prepared and characterized. [PdII(L)(tmen)]2(NO3)4 in a mixture of water and acetone affords microspheres whereas reaction of [PdII(L)(tmen)]2(ClO4)4 produces microbelts.
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November 12, 2008
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| 1465-1471
Preparation and Characterization of an α-Wells–Dawson-Type [V2Mo18O62]6− Complex
S. Himeno,* K. Kawasaki, and M. Hashimoto
[Full Text PDF(J-STAGE)]
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An orange-yellow vanadomolybdate complex was isolated as the tetrapropylammonium (Pr4N+) salt by heating a 100 mM MoVI–20 mM VV–0.45 M HCl–20% (v/v) CH3CN system at 70 °C for 24 h. An X-ray structural analysis (orthorhombic, P21212, a = 18.417(4), b = 20.869(5), c = 15.280(3) Å, V = 5873(2) Å3, and Z = 2) revealed that the structure consists of an α-Wells–Dawson-type [V2Mo18O62]6− anion.
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November 12, 2008
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| 1472-1484
Preparation, Crystal Structures, and Properties of New Conjugated π-Electron Systems with 3-Guaiazulenyl and 4-(Dimethylamino)phenyl Groups
S. Takekuma,* S. Hori, T. Minematsu, and H. Takekuma
[Full Text PDF(J-STAGE)]
The title chemistry of compounds 9 and 13 is reported.
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November 12, 2008
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| 1485-1491
3′ Poly(dA)-Tailed Thrombin DNA Aptamer to Increase DNase-Resistance and Clotting Inhibitory Activity
S. Uehara, N. Shimada, Y. Takeda, Y. Koyama, Y. Takei, H. Ando, S. Satoh, A. Uno, and K. Sakurai*
[Full Text PDF(J-STAGE)] [Supporting Information]
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Natural nucleic acid aptamer poly(dA) conjugated at the 3′ end showed improved resistance against nucleases.
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November 12, 2008
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| 1492-1499
Charge-Transfer Complexes between Indoline–Tricyanoquinodimethane Compounds and 7,7,8,8-Tetracyanoquinodimethane
T. Murata,* G. Honda, C.-H. Chong, M. Makihara, K. Nishimura, S. Khasanov, A. Otsuka, and G. Saito*
[Full Text PDF(J-STAGE)] [Supporting Information]
Indoline–tricyanoquinodimethane type intramolecular CT compounds afforded molecular complexes with TCNQ, where tricyanoquinodimethane and TCNQ formed one-dimensional columns. The coexistence of intra- and intermolecular CT processes are elucidated by theoretical calculations, structural analysis, and optical measurements.
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November 12, 2008
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| 1500-1504
Effect of Methoxy Substituents on the Excited State Properties of Stilbene
Y. Shinohara and T. Arai*
[Full Text PDF(J-STAGE)]
The fluorescence quantum yield of 2,2′,6,6′-tetramethoxystilbene (trans-3) was quite small. The remarkable effect of the number of methoxy substituents at the ortho position was observed.
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November 12, 2008
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| 1505-1511
Electrochemical Oxidation of 4-Methylcatechol in the Presence of β-Diketones
D. Nematollahi,* M. Rafiee, and H. R. Khavasi
[Full Text PDF(J-STAGE)] [Supporting Information]
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Electrochemical oxidation of 4-methylcatechol in the presence of some β-diketones as nucleophiles has been studied and the effect of structure of intermediates on the formation of final products in controlled potential conditions is discussed. The method was used for efficient, one-pot, and clean syntheses of some new functional heterocyles and catechols.
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November 12, 2008
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| 1512-1517
Synthesis of Aromatic Compounds Using Combinations of Ring-Closing Olefin Metathesis, Dehydration, Oxidation, and Tautomerization
K. Yoshida,* T. Toyoshima, and T. Imamoto*
[Full Text PDF(J-STAGE)] [Supporting Information]
An approach to aromatic compounds using combinations of ring-closing olefin metathesis (RCM), dehydration, oxidation, and tautomerization is reported.
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November 12, 2008
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| 1518-1524
Synthesis and Characterization of o-Hydroxybenzophenone Chromophore Bonded to Aminopropyl Silica Gel Microbeads
Y. Senda,* T. Hidaka, J. Matsumoto, T. Shiragami, and M. Yasuda*
[Full Text PDF(J-STAGE)] [Supporting Information]
o-Hydroxybenzophenone (Hbp) chromophores acting as a typical UV absorbent were successfully immobilized in porous aminopropyl silica gel through a covalent bond in order to prevent elution.
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November 12, 2008
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| 1525-1527
Pulse Radiolysis of Hexameric Nitrite Reductase Containing Two Type 1 Cu Sites in a Monomer
S. Suzuki,* T. Maetani, M. Nojiri, K. Yamaguchi, K. Kobayashi, and S. Tagawa
[Full Text PDF(J-STAGE)]
Pulse radiolysis of hexameric nitrite reductase containing the two type 1 Cu sites in a monomer has been carried out. The reduction of the enzyme with N-methylnicotinamide radical follows biphasic kinetics, and the fast and slow phases were assigned to reductions of the type 1 CuN and type 1 CuC, respectively.
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| Web Release Date:
November 12, 2008
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| 1528-1533
Eucalyptus Tar Pitch Substitution of Phenol in the Preparation of Novolak-Type Resins Cured with Hexamethylenetetramine
V. M. D. Pasa, R. S. Assis, R. E. Bruns, and C. G. dos-Santos*
[Full Text PDF(J-STAGE)]
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Curing and characterization of mixtures of commercial phenolic resins and Eucalyptus tar pitch are described. The products were analysed by FTIR, elemental and thermogravimetric analyses. The effects of pitch and HMTA on resin properties were modelled and discussed using statistical techniques.
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Errata
| Web Release Date:
November 12, 2008
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1534
The Alkylation of Naphthalene over One-Dimensional Twelve-Membered Ring Zeolites. The Influence of Zeolite Structure and Alkylating Agent on the Selectivity for Dialkylnaphthalenes
Y. Sugi,* H. Maekawa, H. Naiki, K. Komura, and Y. Kubota
[Full Text PDF(J-STAGE)]
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