Synthesis of a Mn-6 cluster and its self-assembly of an azido-bridged polymer

Mondal, K.C., Drew, M.G.B. and Mukherjee, P.S. (2007) Synthesis of a Mn-6 cluster and its self-assembly of an azido-bridged polymer. Inorganic Chemistry, 46 (14). pp. 5625-5629. ISSN 0020-1669 doi: 10.1021/ic0702670

Abstract/Summary

A rare mu(6)-oxo-centered Mn-6 mixed-valent cluster (1) is prepared and used as a secondary building unit for the self-assembly of its azido-bridged polymeric analogue (2) in a systematic way with the retention of the Mn-6 core of (1). Both complexes are characterized by X-ray single-crystal structure determination. The complex 1 was crystallized in a monoclinic system, space group P2(1), a = 11.252(5) A, b = 20.893(9) A, c = 12.301(6) A, and beta = 115.853(7)degrees, whereas the polymeric analogue was crystallized in an orthorhombic system, space group P2(1)2(1)2(1), a = 13.1941(8) A, b = 14.9897(9) A, and c = 27.8746(14) A. Variable-temperature magnetic behavior showed the presence of strong antiferromagnetic interaction in both cases.