研究業績
Authors:
Ken-ichi Otake, Kazuya Otsubo, Kunihisa Sugimoto, Akihiko Fujiwara, and Hiroshi Kitagawa
Abstract:
One-dimensional (1D) electronic systems have attracted significant attention for a long time because of their various physical properties. Among 1D electronic systems, 1D halogen-bridged mixed-valence transition-metal complexes (the so-called MX chains) have been thoroughly studied owing to designable structures and electronic states. Here, we report the syntheses, structures, and electronic properties of three kinds of novel neutral MX-chain complexes. The crystal structures consist of 1D chains of Pt–X repeating units with (1R,2R)-(−)-diaminocychlohexane and CN– in-plane ligands. Because of the absence of a counteranion, the neutral MX chains have short interchain distances, so that strong interchain electronic interaction is expected. Resonance Raman spectra and diffuse-reflectance UV–vis spectra indicate that their electronic states are mixed-valence states (charge-density-wave state: Pt2+···X–Pt4+–X···Pt2+···X–Pt4+–X···). In addition, the relationship between the intervalence charge-transfer (IVCT) band gap and the degree of distortion of the 1D chain shows that the neutral MX chains have a larger IVCT band gap than that of cationic MX-chain complexes. These results provide new insight into the physical and electronic properties of 1D chain compounds.
Link:
Inorg. Chem. 55 (2016) 2620−2626.
DOI: 10.1021/acs.inorgchem.5b02980
2016.02.22.Mon
Authors:
Ken-ichi Otake, Kazuya Otsubo, Kunihisa Sugimoto, Akihiko Fujiwara, and Hiroshi Kitagawa
…
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2016.02.22.Mon
Authors:
H. Ogawa, Y. Nishikawa, A. Fujiwara, M. Takenaka, Y.-C. Wang, T. Kanaya and M. Takata
…
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2016.02.22.Mon
Authors:
Shinobu Aoyagi, Hitoshi Osawa, Kunihisa Sugimoto, Akihiko Fujiwara, Shoichi Takeda, Chi…
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2016.02.22.Mon
Authors:
Mikihiro Hayashi, Kazuya Otsubo, Tatsuhisa Kato, Kunihisa Sugimoto, Akihiko Fujiwarad a…
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2015.03.25.Wed
物質のガラス形成にかかわる論文を発表しています
アモルファス酸化物半導体の安定性にもかかわる非晶質…
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2015.03.16.Mon
アモルファス酸化物半導体の研究成果が論文掲載されました
物質・材料研究機構(NIMS)国際ナノアーキテク…
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