Mantero Déborah González, Neels Antonia, Stoeckli-Evans Helen
Institut de Chimie, Université de Neuchâtel, Av. de Bellevaux 51, CH-2007 Neuchâtel, Switzerland.
Inorg Chem. 2006 Apr 17;45(8):3287-94. doi: 10.1021/ic051934x.
The reaction of M(S2O6) (M = Cu(II), Ni(II), and Co(II)) with 4,4'-bipyridine-N,N'-dioxide (bpdo) results in the formation of novel 3D, 2D, and mononuclear complexes. Complex 1, {Cu(H2O)(bpdo)2(H2O)}n, is a 2-D wavelike polymer with the Cu(II) ion located on a 2-fold axis and having a distorted square-pyramidal coordination sphere. With Co(II) and Ni(II), 3-D complexes, {M(bpdo)3(C2H5OH)7}n [M = Co(II) (2), Ni(II) (3)], were obtained. The metal atoms are situated on centers of symmetry and have octahedral environments coordinated to six bpdo molecules. The same reaction in aqueous solution with a metal/ligand ratio of 1:1 results in the formation of mononuclear complexes, {M(bpdo)(H2O)5(H2O)2} [M = Co(II) (4), Ni(II) (5)], accompanied by the decomposition of the dithionate anions S2O6(2-) to sulfate anions SO4(2-).
M(S₂O₆)（M = 铜(II)、镍(II)和钴(II)）与4,4'-联吡啶-N,N'-二氧化物（bpdo）反应生成了新型的三维、二维和单核配合物。配合物1，{Cu(H₂O)(bpdo)₂(H₂O)}ₙ，是一种二维波状聚合物，铜(II)离子位于二重轴上，具有扭曲的四方锥配位环境。对于钴(II)和镍(II)，得到了三维配合物{M(bpdo)₃(C₂H₅OH)₇}ₙ [M = 钴(II) (2)，镍(II) (3)]。金属原子位于对称中心，具有与六个bpdo分子配位的八面体环境。在水溶液中以1:1的金属/配体比例进行相同反应，会生成单核配合物{M(bpdo)(H₂O)₅(H₂O)₂} [M = 钴(II) (4)，镍(II) (5)]，同时连二硫酸根阴离子S₂O₆²⁻分解为硫酸根阴离子SO₄²⁻。
