A NEW 2-DIMENSIONAL MANGANESE(II)-AZIDE POLYMER - SYNTHESIS, STRUCTURE AND MAGNETIC-PROPERTIES OF [(MN(MINC)(2)(N-3)(2))(N)] (MINC EQUALS METHYL ISONICOTINATE)

A new two-dimensional manganese compound showing mu(1,3)-azido bridges has been Synthesized and structurally characterised. The complex [{Mn (minc)(2)(N-3)(2)}(n)], where mine corresponds to methyl isonicotinate , crystallises in the monoclinic system, space group P2(1)/c, a = 12.4 24(5), b = 8.496(3), c = 8.399(4) Angstrom, beta = 96.41(3)degrees and Z = 2. Magnetic measurements show behaviour typical of a two-dimensio nal Heisenberg antiferromagnet with J=-2.24(2) cm(-1). Low-temperature properties are discussed in comparison with those of Some molecular m agnets of the [{MnL2(N-3)(2)}(n)] series.