Manganese clusters derived from 2-pyridylcyanoxime: new topologies and a large spin ground state in pyridyloximate chemistry

Abstract

Series of manganese clusters derived from 2-pyridylcyanoxime with Mn₃^II (1), Mn₄^II (2a, b), Mn^II₄Mn^III₄ (3), Mn^II₂Mn^III₆Mn^IV₂ (4) and Mn^II₃Mn^III₆Mn^IV (5) cores have been characterized. Dc magnetic measurements reveal antiferromagnetic coupling for 1–4 and dominant ferromagnetic interactions for 5 which shows the largest ground state reported to date in pyridyloximate chemistry (S = 14).