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A New Type of Hexanuclear Iron( III ) Hydroxo(oxo) Cluster
Author(s) -
Harding Charlie J.,
Henderson Richard K.,
Powell Anne K.
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199305701
Subject(s) - cluster (spacecraft) , chemistry , crystallography , ion , magnetic moment , salt (chemistry) , water cluster , type (biology) , molecule , physics , condensed matter physics , computer science , hydrogen bond , organic chemistry , geology , programming language , paleontology
Bridging μ 3 ‐oxo and μ 2 ‐hydroxo ligands characterize the structure of the cluster anion 1 , which can be prepared as a highly soluble K or Na salt in water. The structure of 1 can be viewed as two parallel, μ 3 ‐oxo‐bridged Fe 3 triangles joined by μ‐hydroxo bridges or as two Fe 4 butterfly structures with shared wing tips. Cluster 1 has more short FeFe separations than all other related compounds, and its effective magnetic moment μ eff increases dramatically at low temperatures. This magnetic behavior is not completely understood.