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 elemen tal and thermal analysis, IR, magnetic and conductivity studies. The struct ure of [Mn(H2O)(2)(ac-O)(2)(2,4'-bipy)(2)] has been determined by single cr ystal X-ray methods; the complex crystallizes in the monoclinic system, spa ce group P2(I)/c with Z=2, a=8.035(1), b=5.660(1), c=26.130(5)Angstrom, bet a=97.05(1)degrees, V=1179.36 Angstrom(3). The structure was solved by the P atterson 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 g roups.