Synthesis, Crystal Structure and Magnetic Properties of a Two-Dimensional Heterometallic Assembly ∣[Mn(salen)]∣2∣[Ni(CN)4∣·1/2H2O

A heterometallic assembly, [Mn(salen)] 2 [Ni(CN) 4 ]·1/2H 2 O (where salen=N, N'-ethylene-bis(salicylideneiminato)-dianion), has been prepared from the reaction of [Mn(salen)H 2 O]ClO 4 ·H 2 O with K 2 [Ni(CN) 4 ]·H 2 O in methanol/water. The compound crystallizes in the tetragonal space group...

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Bibliographic Details
Published in:Journal of coordination chemistry 2002-01, Vol.55 (4), p.411-420
Main Authors: Yuan, Ai-Hua, Shen, Xiao-Ping, Wu, Qiang-Jin, Huang, Zi-Xiang, Xu, Zheng
Format: Article
Language:English
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Summary:A heterometallic assembly, [Mn(salen)] 2 [Ni(CN) 4 ]·1/2H 2 O (where salen=N, N'-ethylene-bis(salicylideneiminato)-dianion), has been prepared from the reaction of [Mn(salen)H 2 O]ClO 4 ·H 2 O with K 2 [Ni(CN) 4 ]·H 2 O in methanol/water. The compound crystallizes in the tetragonal space group P 4/ncc with the cell dimensions of a =14.604(2) Å, c =16.949(3) Å, and Z=4. The compound assumes a two-dimensional distorted square network structure, formed from Ni-CN-Mn(salen)-NC-Ni linkages with dimensions of Ni-C = 1.867(7)Å, Mn-N - 2.312(6) Å, Mn-N-C - 163.8(6)° Ni-C-N = 178.4(6)°. The two metal atoms Ni(II) and MN(III) have square and slightly distorted octahedral arrangements, respectively. Magnetic susceptibility measurements indicate the presence of an intramolecular antiferro-magnetic interaction and gives a Mn-Mn exchange integral of −3.2cm −1 .
ISSN:0095-8972
1029-0389
DOI:10.1080/00958970211905