Synthesis, characterization and crystal structure of diaquadi(acetato-O)-bis(2,4′-bipyridyl) manganese(II)

The title complex [Mn(H2O)(2)(ac-O)(2)(2,4'-bipy)(2)] (1) (ac = CH3COO-, 2,4'-bipy = 2,4'-bipyr idyll has been synthesized and characterized by elemental and thermal analysis, IR, magnetic and conductivity studies. The structure of [Mn(H2O)(2)(ac-O)(2)(2,4'-bipy)(2)] has been determined by single crystal X-ray methods; the complex crystallizes in the monoclinic system, space group P2(I)/c with Z=2, a=8.035(1), b=5.660(1), c=26.130(5)Angstrom, beta=97.05(1)degrees, V=1179.36 Angstrom(3). The structure was solved by the Patterson method and refined by full-matrix least-squares techniques using F-2 values to conventional R=0.050 for 2322 independent reflections with F-o> 4 sigma(F-o). The central Mn atom lies on a centre of symmetry and is six-coordinated to two CH3COO- groups, two water molecules and two bipyridyl groups.