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A New Mixed‐Valence Tetranuclear Manganese [Mn II 2 Mn III 2 ] Cluster
Author(s) -
Shao CongYing,
Zhu LiLi,
Yang PeiPei
Publication year - 2012
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200065
Subject(s) - manganese , valence (chemistry) , monoclinic crystal system , crystallography , chemistry , ferromagnetism , hydroxymethyl , ion , inorganic chemistry , pyridine , crystal structure , stereochemistry , physics , condensed matter physics , medicinal chemistry , organic chemistry
A new tetranuclear manganese complex [Mn 2 II Mn 2 III (bhmcpH) 2 (hmp) 4 Cl 2 (MeOH) 2 ] ( 1 ) [bhmcpH 3 = 2, 6‐bis(hydroxymethyl)‐4‐chlorophenol, hmpH = 2‐(hydroxymethyl)pyridine] was synthesized and characterized. X‐ray diffraction analyses reveal that complex 1 crystallizes in the monoclinic space group P 2 1 / c . It has a mixed‐valence tetranuclear dicubane unit, which comprises two Mn II and two Mn III ions. The temperature dependence of the magnetic susceptibilities of 1 indicates ferromagnetic interactions between the manganese ions.