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Preparation, Magnetism, and Crystal Structures of the Tautomers [LCu(μ 2 ‐OH) 2 CuL](ClO 4 ) 2 (Blue) and [LCu(μ 2 ‐OH 2 )(μ 2 ‐O)CuL](ClOμ 4 )μ 2 (Green): μ‐Aqua‐μ‐oxo vs. Di‐μ‐hydroxo Linkage
Author(s) -
Chaudhuri Phalguni,
Ventur Dirk,
Wieghardt Karl,
Peters EvaM.,
Peters Karl,
Simon Arndt
Publication year - 1985
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.198500571
Subject(s) - magnetism , tautomer , antiferromagnetism , crystallography , crystal structure , chemistry , aqueous solution , ferromagnetism , transition metal , metal , stereochemistry , inorganic chemistry , condensed matter physics , physics , catalysis , organic chemistry
The first example for μ‐aqua‐μ‐oxo bridging of two transition‐metal centers is the cation of 2 . This compound is formed as green crystals from CuCl 2 ·2H 2 O and L in methanol after addition of aqueous NaClO 4 solution. 2 is ferromagnetic. 1 , the cation of which belongs to a frequently encountered type, is formed as blue crystals from Cu(ClO 4 ) 2 · 6 H 2 O and L in water. 1 is antiferromagnetic. Surprisingly, in the crystal the two tautomers have the same space group and very similar structures.