2014年7月
Steric Interference on the Redox-conjugated Pyrimidine Ring Rotation of Mono- and Dinuclear Copper Complexes with (4-Methyl-2-pyrimidinyl)imine Ligands
CHEMISTRY LETTERS
- ,
- ,
- ,
- ,
- 巻
- 43
- 号
- 7
- 開始ページ
- 1037
- 終了ページ
- 1039
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1246/cl.140238
- 出版者・発行元
- CHEMICAL SOC JAPAN
A mononuclear copper(I) complex with N-[(4-methyl-2-pyrimidinyl)methylene]p-toluidine (1 center dot BF4) and a dinuclear copper(I) complex with N,N'-bis[(4-methyl-2-pyrimidinyl)methylene]-p-phenylenediamine (2 center dot(BF4)(2)) were synthesized as BF4- salts to evaluate the influence of the imine moiety on the pyrimidine ring rotation isomerism. 1 center dot BF4 existed in solution as a mixture of two isomers; 2 center dot(BF4)(2) was present as a mixture of three isomers. The redox potentials of the copper centers were changed by pyrimidine ring rotation. Comparison of 1(+) and 2(2+) indicated that increasing the steric congestion around the copper center increased the oil isomer ratio; the redox potentials of both the o- and i-isomers shifted in the positive direction, and the Cu-II/I redox reaction became slower.
- リンク情報
- ID情報
-
- DOI : 10.1246/cl.140238
- ISSN : 0366-7022
- eISSN : 1348-0715
- Web of Science ID : WOS:000339364800024