Heterometallic Re/Mo and Re/W cubane-type cluster complexes†
Aleksei S.
Pronin, 
a
Yakov M.
Gayfulin,
a
Taisiya S.
Sukhikh,
a
Alexander N.
Lavrov,
a
Vadim V.
Yanshole
b
and
Yuri V.
Mironov
*a
a
Yakov M.
Gayfulin,
a
Taisiya S.
Sukhikh,
a
Alexander N.
Lavrov,
a
Vadim V.
Yanshole
b
and
Yuri V.
Mironov
*a
Abstract
A series of heterometallic tetrahedral cluster complexes with the general formula [{MxRe4−xSe4}(CN)12]n− (M = Mo, W; x = 2, 3) were obtained using the reaction of ReI3 and MO3 with selenium and KCN at elevated temperatures. Compounds [ReW3Se4(CN)12]6− and [Re2W2Se4(CN)12]6− are the first rhenium–tungsten heterometallic clusters. Crystal structures, electrochemical properties in aqueous solutions and magnetic properties of crystalline samples have been studied in detail. It has been shown that new cluster anions demonstrate a regular change in geometric characteristics and redox potentials depending on the composition of the cluster core.
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