The low temperature magnetic response of a layered manganese acetate benzoate complex

Abstract: We report the low temperature magnetic behavior of a complex with nominal formula “Mn(OAc)(OBz)(μ-O)0.1”. It is presumed that the phase responsible for the interesting magnetic phenomena is related to {Mn5(OAc)4(OBz)6}∞ – a recently reported complex comprised of two dimensional sheets of Mn12 loops arranged in a honeycomb-like fashion via carboxylate bridging in the plane. Temperature and field dependent magnetic studies show exchange transitions between 1.7 and 12K which are similar to those found in other Mn carboxylate complexes. The point of interest we wish to explore in this paper, that differs from similar manganese carboxylate-based complexes, is the rather strong two-dimensional antiferromagnetic exchange and the possible role of interplanar exchange on ordering. [Copyright &y& Elsevier]