New antiferromagnetic Mn(II) pivalate polymer: synthesis and reactivity

Abstract

An antiferromagnetic pivalate polymer complex [Mn(OOCCMe 3) 2(EtOH)] n ( 1) has been prepared by the reaction between MnCl 2 · 4H 2O and KOOCCMe 3 in EtOH. The reaction of 1 with 2,6-diaminopyridine (L) in MeCN resulted in an antiferromagnetic binuclear L 2Mn 2(μ-OOCCMe 3) 4 ( 2) complex solvated with the four acetonitrile molecules. The oxidation of 1 was shown to give rise to a hexanuclear pivalate cluster Mn 6(μ 4-O) 2(μ-OOCCMe 3) 10(HOOCCMe 3)(HOEt) 3 ( 3). Both the X-ray and the thermographic studies revealed low temperature phase transitions for 1 and 2.