The First Seven-Coordinated Triiodo Complex of Rhenium(III).

The reaction of cis-[ReO₂I(PPh₃)₂] with tert-butyl isocyanide in benzene led to the isolation of the complex [ReI₃(CN-t-Bu)₃(PPh₃)] (1). The complex is unusual since it contains bulky ligands with large cone angles, i.e. three iodides, three isocyanides with tert-butyl groups and a triphenylphosphine as ligands in a seven-coordinate geometry around the rhenium(III) metal ion. [ABSTRACT FROM AUTHOR]