Synthesis, Structures, and Magnetic Properties of Dinuclear Nickel(II) Complexes Containing N,N,N',N'-Tetrakis[(1-methyl-2-benzimidazolyl)methyl]- 2-hydroxy-1,3-diaminopropane and a Thiocyanate Ion

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Title
Synthesis, Structures, and Magnetic Properties of Dinuclear Nickel(II) Complexes Containing N,N,N',N'-Tetrakis[(1-methyl-2-benzimidazolyl)methyl]- 2-hydroxy-1,3-diaminopropane and a Thiocyanate Ion
Author
著者 中尾 安男
著者(別表記) Nakao Yasuo
著者 Sato Tomohiko
著者(別表記) Sato Tomohiko
著者 Mori Wasuke
著者(別表記) Mori Wasuke
著者 Goto Shiko
著者(別表記) Goto Shiko
著者 Issiki Miwa
著者(別表記) Issiki Miwa
著者 Fujii Mie
著者(別表記) Fujii Mie
著者 Motoo Shiro
著者(別表記) Motoo Shiro
著者 Tanaka Rika
著者(別表記) Tanaka Rika
著者 Matsumoto keiji
著者(別表記) Matsumoto keiji
Abstract

Three dinuclear nickel(II) complexes, [Ni2(L-Me)(NCS)(H2O)3](PF6)2 (1), [Ni2(L-Me)(NCS)2 (CH3OH) (H2O)]PF6 (2), and [Ni2(L-Me)(NCS)2(H2O)2]NCS (3) containing HL-Me(HL-Me = N,N,N',N'-tetrakis[(1-methyl-2-benzimidazolyl)methyl]-2-hydroxy-1,3-diaminopropane) have been synthesized and characterized by their IR and UV-Vis spectra and magnetic susceptibilities. The crystal structures of the complexes
1’, 2’, and 3’, from which 1, 2, and 3, respectively, are derived, were determined by X-ray crystallography. These complexes are dimeric and only an alkoxo of L-Me- bridges two octahedral Ni(II) ions. While 2’ and 3’ have symmetrical conformations of L-Me-, that of 1’ is unsymmetrical. Magnetic susceptibility measurements from liquid helium temperature to room temperature showed a
weak ferromagnetic exchange coupling between the two nickel(II) ions (2J =7.8cm-1, H =-2JS1・S2) for 1. On the other hand, antiferromagnetic interactions were observed for 2 and 3 (2J =-29.2and -27.8cm-1, respectively).

Subject
430 Chemistry
Keyword
Dinuclear nickel(II) complexes
Magnetic susceptibilities
Crystal structures
Publish Date
2008
Publication Title
Chugokugakuen journal
Volume
7
Start Page
11
End Page
17
ISSN
1348-1452
NCID
AA11806612
Publisher
中国学園大学/中国短期大学
Copyright Holders
中国学園大学/中国学園短期大学
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Contents Type
Departmental Bulletin Paper
language
English
File Version
publisher