Synthesis and electrochemistry of [{Mo(NO)[HB(3,5-Me2C3HN2)3]Cl}2{1,2-(NH)2C6H4}] and the crystal structure of [{Mo(NO)[HB(3,5-Me2C3HN2)3]I}2{1,2-(NH)2C6H4}]
Abstract
Cyclic voltammetry of the 1,2-phenylenediamide-bridged bimetallic complex [{Mo(NO)L(Cl)}2{1,2-(NH)2C6H4}][L = HB(3,5-Me2C3HN2)3] has revealed two one-electron reduction processes separated by 770 mV, a value which is in accord with the presence of strongly interacting molybdenum centres but intermediate between those found for the corresponding complexes containing 1,4- and 1,3-disubstituted aryl bridging groups. The crystal structure of [{Mo(NO)L(I)}2{1,2-(NH)2C6H4}] has been determined. It contains Mo–N(arylamide) distances of 1.957(6)Å and reveals a non-planar structure for the MoN(amide)–C–C–N(amide)Mo moiety which may account for the lower than expected Mo ⋯ Mo interaction detected electrochemically.