2012年3月
A Switchable Molecular Rotator: Neutron Spectroscopy Study on a Polymeric Spin-Crossover Compound
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- 巻
- 134
- 号
- 11
- 開始ページ
- 5083
- 終了ページ
- 5089
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ja206228n
- 出版者・発行元
- AMER CHEMICAL SOC
A quasielastic neutron scattering and solid-state H-2 NMR spectroscopy study of the polymeric spin-crossover compound {Fe(pyrazine)[Pt(CN)(4)]} shows that the switching of the rotation of a molecular fragment- the pyrazine ligand-occurs in association with the change of spin state. The rotation switching was examined on a wide time scale (10(-13)-10(-3) s) by both techniques, which clearly demonstrated the combination between molecular rotation and spin-crossover transition under external stimuli (temperature and chemical). The pyrazine rings are seen to perform a 4-fold jump motion about the coordinating nitrogen axis in the high-spin state. In the low-spin state, however, the motion is suppressed, while when the system incorporates benzene guest molecules, the movements of the system are even more restricted.
- リンク情報
- ID情報
-
- DOI : 10.1021/ja206228n
- ISSN : 0002-7863
- Web of Science ID : WOS:000302191900021