| 三维1,4-二-(4-羧基吡啶基)丁烷合铜(Ⅱ)、银(I)配合物的合成及晶体结构表征 |
| Three- Dimensional Hydrogen Bonded Coordination Polymer of Cu(Ⅱ) and C- H…O Joined π-π Stacked Polymer of Ag(Ⅰ) with 1,4- Bis(4- Carboxypyridinium)butane: Synthesis and Characterization |
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| 摘要: 利用1,4-二-(4-羧基吡啶基)丁烷(L)合成了铜(Ⅱ)、银(I)的配合物[[CuL(H2O)3]·2(H2O)·2(NO3)}n(1)、{[AgL]·(H2O)·(NO3)}n(2).X射线晶体结构表征结果表明:1属于P21/n空间群,晶胞参数为a=1.72410(3),b=0.66320(1),c=2.1 |
| 关键词: 1,4-二-(4-羧基吡啶基)丁烷 晶体结构 氢键 ππ堆积 |
| 基金项目: 国家教委回国人员基金资助项目. |
| Abstract: Reaction of a newly synthesized double betaine 1,4-bis(4-carboxypyridinium)butane L with Cu(NO3)2·4H2O and AgNO3 leads to the formation of coordination polymers {[CuL(H2O)3]· 2H2O·2NO3}n 1 and {[AgL]·H2O· NO3}n 2, respectively. X-ray structure analysis indicates that 1 crystallizes in space groups P21/n with a=1.7241(3),b=0.6632(1),c=2.1138(4)nm,β =103.05(3)° and Z=4; 2 in space group P1 with a=0.7766(2),b=0.9370 (2),c=1.3357(3)nm,α = 98.99(3),β =99.49(3),γ =109.05(3)° and Z=2. In both 1 and 2, the metal atoms are bridged by monodented Lto form coordination chains. For 1, the chains are linked by aqua ligands, lattice water molecules and nitrate anions through hydrogen bonds to form a three dimensional structure. For 2, the chains are joined by the C-H…O hydrogen bonds between the pendent oxygen atoms of Land the hydrogen atoms on the pyridyl rings forming stepped layers, which are further extended to three dimensional structure by π-π stacking. |
| Keywords: 1,4-bis(4-carboxypyridinium)butane crystal structure hydrogen bonding π-π stacking |
| 投稿时间：2001-04-02 修订日期：2001-06-12 |
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| 赵云中,李松林,翁林红,张明杰,肖衍繁.三维1,4-二-(4-羧基吡啶基)丁烷合铜(Ⅱ)、银(I)配合物的合成及晶体结构表征[J].无机化学学报,2001,17(5):691-698. |
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