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Your search keyword '"Komaguchi, Kenji"' showing total 3 results
Start Over Author "Komaguchi, Kenji" Topic chemistry
3 results on '"Komaguchi, Kenji"'

1. New strontium polysulfides, SrS3, and Sr(sub 2)(OH)(sub 2)S(sub 4).10H2O, obtained by the high-pressure treatment of a Sr-S mixture

Author

Fukuoka, Hiroshi, Suga, Rimiko, Komaguchi, Kenji, Yamanaka, Shoji, and Shiotani, Masaru

Subjects
Strontium -- Research, Polysulfides -- Research, X-rays -- Diffraction, X-rays -- Usage, Chemistry
Abstract

Two new strontium polysulfides, SrS3 and Sr(sub 2)(OH)(sub 2)S(sub 4).10H2O, are obtained by the high-pressure and high-temperature treatment of Sr and sulfur mixtures. The MO calculation of the S(sub 4)(super 2-) anion described the longer central S-S bond distance rather than the terminal bond distance in Sr(sub 2)(OH)(sub 2)S(sub 4).10H2O and this is the first compound that contains the S(sub 4)(super 2-) anion with coplanar and anitgeometry.

Published
2004

2. An ESR study of trimethylenemethane radical cation

Author

Anders Lund, Komaguchi Kenji, and Masaru Shiotani

Subjects
Chemistry, Trimethylenemethane, Ab initio, General Physics and Astronomy, Electronic structure, Photochemistry, Crystallography, chemistry.chemical_compound, Radical ion, Atomic orbital, Unpaired electron, Intramolecular force, Physical and Theoretical Chemistry, Spectroscopy
Abstract

The electronic structure of trimethylenemethane (TMM) radical cation has been investigated by ESR spectroscopy and ab initio MO calculations. The 4.2 K ESR spectrum of TMM+ consists of a septet with isotropic 1H hf splittings of 0.93 mT (6 H) in a CF2ClCF2Cl matrix. The ESR lineshape did not change appreciably between 4 and 125 K. Ab initio MO calculations predict that TMM+ is a 2A2 state in a distorted C2v structure, in which the unpaired electron mainly resides in the pz orbitals of the two equivalent terminal carbons. The spectra were explained by intramolecular dynamics between the three energetically equivalent C2v structures to average the structural distortion giving an apparent D3h structure even at a low temperature of 4.2 K.

Published
1997
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3. Drastic Enhancement of Cycle Lifetime of Electrochromic Devices Using Polysilsesquioxane as an Anchoring Agent.

Author

Imae, Ichiro, Takenaka, Youichi, Tokita, Daisuke, Ooyama, Yousuke, Komaguchi, Kenji, and Yutaka Harima

Subjects
CHEMISTRY, HYDROLYSIS, ELECTROCHROMIC devices, ELECTROOPTICAL devices, POLYCONDENSATION
Abstract

Polysilsesquioxanes were obtained by hydrolysis of viologens having one or two triethoxysilyl groups, followed by their polycondensation, and anchored on the surface of an ITO electrode. The electrochromic properties of the polysilsesquioxanes were investigated and its component was optimized to enhance the cycle lifetime. [ABSTRACT FROM AUTHOR]

Published
2008
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