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    題名: Synthesis, structure and magnetic properties of mononuclear [Mn(2,2′-bipyrimidine)2(H2O)2][ClO4]2 and polynuclear [Mn(2,2′-bipyrimidine)(NO3)2] complexes
    作者: Hong, D. M.;魏和祥;Wei, Ho-hsiang;Gan, L. L.;Lee, G. H.;Wang, Yu
    貢獻者: 淡江大學化學學系
    日期: 1996-07
    上傳時間: 2009-12-01
    出版者: Kidlington: Pergamon
    摘要: Two new complexes [Mn(bpym)2(H2O)2][ClO4]2 (bd1) and [Mn(bpym)(NO3)2] (2) (bpym = 2,2′-bipyrimidine) have been prepared and characterized by spectroscopic and X-ray diffraction methods. Compound 1 consists of a mononuclear [Mn(bpym)2(H2O)2]2+ unit in which the manganese atoms shows a distorted elongated octahedral coordination with two bpym nitrogens and two H2O oxygens forming a cis configuration. The structure of compound 2 is made up of an infinite zigzag bpym-bridged polymeric chain with [Mn(bpym)(NO3)2] units, in which the manganese atom has seven coordination with four nitrogen atoms of two bpym ligands and three oxygen atoms of monodentate NO3− and bidentate NO3− anions. The intermetallic distance of Mn…Mn is 6.234(2) Å. The temperature dependence of the magnetic susceptibility of 2 reveals the presence of a one-dimensional Heisenberg antiferromagnetic chain with J = −0.93 cmsu−1.
    關聯: Polyhedron 15(14), pp.2335-2340
    DOI: 10.1016/0277-5387(95)00521-8
    顯示於類別:[化學學系暨研究所] 期刊論文

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