名称:
One-dimensional structures of manganese(II) complexes [MnII(hfac)2L] hfac = hexafluoroacetylacetonate anion; L = N-(4-pyridylmethyl)imidazole, trans-1,2-bis(4-pyridyl)ethylene, imidazole)
摘要:
Bis(hexafluoroacetylacetonato)diaquamanganese(II)[Mn(hfac)(2)(H2O)(2)] reacts with N-(4-pyridylmethyl)imidazole (pyrim), trans-1,2-bis(4-pyridyl)ethylene (bpye) and imidazole (Him) to give their adducts with three different kinds of one-dimensional structures [Mn(hfac)(2)(pyim)] (1), [Mn(hfac)(2)(bpye)] (2) and [Mn(hfac)(2)(Him)(2)] (3), respectively. Compound 1 crystallizes in the monoclinic space group P2(1)/n with a=9.696(3), b=14.839(4), c=17.076(3) Angstrom, beta=92.70(2)degrees, and assumes a one-dimensional structure running along the b-axis in which the adjacent molecules are related by a two-fold screw axis. Compound 2 crystallizes in the space group C2/c with a=9.554(2), b=16.476(2), c=16.137(2) Angstrom, beta=96.97(2)degrees, and assumes a zigzag-chain structure. Compound 3 crystallizes in the space group P2(1)/c with a=7.526(3), b=14.506(3), c=10.394(2) Angstrom, beta=96.71(2)degrees and the one-dimensional structure of 3 is formed by a hydrogen bond between NH of imidazole and O of hfac.