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X-Ray Crystal Structures of Octahedral Diaquabis(N,N-dialkyl-ethylenediamine)nickel(II) Complexes Possessing Elongated Nickel(II)–Nitrogen Bonds along Axial Direction
- フォーマット:
- 論文
- 責任表示:
- Ihara, Yoshinori ; Satake, Yasuhiro ; Fujimoto, Yumi ; Senda, Hitoshi ; Suzuki, Masatatsu ; Uehara, Akira
- 言語:
- 英語
- 出版情報:
- 日本化学会=The Chemical Society of Japan, 1991-01-01
- 著者名:
Ihara, Yoshinori Satake, Yasuhiro Fujimoto, Yumi Senda, Hitoshi Suzuki, Masatatsu Uehara, Akira - 掲載情報:
- Bulletin of the Chemical Society of Japan
- ISSN:
- 0009-2673
- 巻:
- 64
- 通号:
- 8
- 開始ページ:
- 2349
- 終了ページ:
- 2352
- バージョン:
- publisher
- 概要:
- The structures of two diaquabis(N,N-dialkylethylenediamine)nickel(II) chlorides ([Ni(H2O)2(diamine)2]Cl2·nH2O) were determined by X-ray crystallographic studies, where diamine is N,N-dimethylethylenediamine(NN-dmen) or N,N-diethylethylenediamine (NN-deen). Both complexes are trans and crystallize in the monoclinic space group P21⁄n. The unit cell parameters of the NN-dmen complex, NiCl2C8N4O2H32, are a=7.531(1), b=13.092(1), c=9.591 Å, … β=107.76(1)°, and Z=2, and those of the NN-deen complex, NiCl2C12N4O2H36, are a=9.154(1), b=8.692(1), c=12.395(2) Å, β=104.46(1)°, and Z=2. In trans-[Ni(H2O)2(NN-dmen)2]Cl2·2H2O and trans-[Ni(H2O)2(NN-deen)2]Cl2, the Ni–NMe2 and Ni–NEt2 bond distances (2.183 and 2.271 Å) are much longer than the Ni–NH2 distances (2.078 and 2.064 Å), forming tetragonally distorted octahedrons with four close in-plane neighbors(N2O2) and two remote axial ones(N2). It is apparent that this distortion originates from the steric requirement of N-substituted groups. Such a distortion significantly affects the electronic spectra of these complexes. 続きを見る
- URL:
- http://hdl.handle.net/2297/37512
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