Triphenylantimony(V) 6-alkoxymethyl-3,5-di-tert-butylcatecholates. Structure and redox-properties

A series of new 6-substituted 3,5-di-tert-butylcatecholato complexes of triphenylantimony(V) based on 6-alkoxymethyl-3,5-di-tert-butylcatechols and o-benzoquinones (where alkoxy group is methoxy, ethoxy, isopropoxy, tert-butoxy, n-hexoxy functions) have been synthesized. Novel redox active catechol, o-benzoquinone ligands and triphenylantimony(V) catecholates have been characterized in details. The molecular structures of mono- and binuclear triphenylantimony(V) catecholates in crystal were determined using single-crystal X-ray analysis. The electrochemical behaviour of complexes and influence of alkoxy methyl group were studied by cyclic voltammetry.168