钴配合物[Co_2(H_2O)_8(C_(10)H_8N_2)_2]·(HO_3PCH_2CH_2SO_3)(SO_4)(H_2O)_4的合成与晶体结构研究(英文)  

Synthesis and crystal structure of a cobalt(Ⅱ) compound:[Co_2(H_2O)_8(C_(10)H_8N_2)_2]·(HO_3PCH_2CH_2SO_3)(SO_4)(H_2O)_4

作　　者：应少明[1] 周光培[1] 钟凡[1] 吴建宏[1] 黄平振[1] 

机构地区：[1]江西省配位化学重点实验室,井冈山大学化学化工学院,江西吉安343009

出　　处：《化学研究与应用》2009年第12期1657-1661,共5页Chemical Research and Application

摘　　要：用硫酸钴、4,4’-联吡啶和2-磺酸基乙基膦酸合成了一个新颖的钴化合物:[Co2(H2O)8(C10H8N2)2].(HO3PCH2CH2SO3)(SO4)(H2O)4,并对其进行了红外。元素分析、热重测试,通过单晶衍射仪测定了其晶体结构。结果表明,配合物属单斜晶系C2/c空间群,分子式为C22H45Co2N4O22PS2,分子量为930.57,晶胞参数为a=19.8456(18),b=11.2957(10),c=34.719(3),β=106.095(3)°,晶胞体积为7477.9(12)3,Z=8,Dc=1.653 g/cm3,F(000)=3856,μ=1.131 mm-1,最终残差因子R1=0.0726,wR2=0.1719(相对于5612个I>2σ(I)的可观测衍射点)。在这个化合物中,二齿配体4,4’-联吡啶把Co(II)桥连成[Co(4,4’-bipy)]2+链。化合物中的[Co(4,4’-bipy)]2+链有三个不同的朝向。2-磺酸基乙基膦酸没有参与配位而是做为一个有机模板剂填充在[Co(4,4’-bipy)]2+链形成的空隙中。Simple bifunctional linear ligands such as 4, 4 ＇- bipyridine（4,4＇-bipy）have been extensively uesd in the construction of coordination polymers which can exhibit variety of architectures. Supramolecular chemistry and self-assembly with 4,4 ＇ -bipy and its derivative are at the frontiers of molecular sciences, as demonstrated by the intense and the rapid increase of publications in this area in just the last decade.

关 键 词：Co(Ⅱ)化合物 晶体结构 桥链 有机模板剂 

分 类 号：O641.3[理学—物理化学]