Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 657, Issue 1-3, Pages 325-331Publisher
ELSEVIER
DOI: 10.1016/S0022-2860(03)00452-6
Keywords
manganese complex; hexacyanoferrate(III); cyano bridge; crystal structure; magnetic properties
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Reaction of K-3[Fe(CN)(6)] with [Mn(salen).H2O]ClO4.H2O (salen: N,N'-ethylenebis(salicylideneiminato) dianion) affords a bimetallic heptanuclear complex cationic salt [{Mn(salen).H2O}(6)Fe(CN)(6)][Fe(CN)(6)].6H(2)O. In the complex cation [{Mn(salen).H2O}(6)Fe(CN)(6)](3+), the central [Fe(CN)(6)](3-) unit is surrounded by six [Mn(salen).H2O](+) moieties through Fe-C-N-Mn linkages with dimensions of Fe-C = 1.941(5) Angstrom, Mn-N = 2.334(2) Angstrom, Fe-C-N = 177.7(2)degrees and Mn-N-C = 150.7(1)degrees. The variable temperature magnetic susceptibilities, measured in the 5-300 K range, indicate the presence of a weak intracluster ferromagnetic interaction between Fe(III)(S = 1/2) and Mn(III)(S = 2) through cyano bridges. (C) 2003 Elsevier B.V. All rights reserved.
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