一维链状配位聚合物[Nd(C_8H_7NO_2)_3(H_2O)]_n的水热合成和晶体结构  

Hydrothermal Synthesis and Crystal Structure of One-dimensional Chain Coordination Polymer [Nd(C8H7NO2)3(H2O)]n

作　　者：周秋香[1] 王延吉[1] 赵新强[1] 岳琳[1] 

机构地区：[1]河北工业大学化工学院,天津300130

出　　处：《Chinese Journal of Structural Chemistry》2004年第5期570-573,共4页结构化学（英文）

基　　金：国家自然基金项目(No. 20176008);河北省自然基金项目(No. 202006)

摘　　要：利用Nd(NO)36H2O和3-(3-吡啶基)丙烯酸在水热反应条件下反应,合成了一种新型一维链状配位聚合物[Nd(C8H7NO2)3(H2O)]n。用元素分析、IR和TGA-DTA进行了表征, 并用X-射线衍射法测定了晶体结构。结果表明,该晶体属三斜晶系,(分子式C24H23N3O7Nd),P空间群,晶胞参数为a = 6.275(2),b = 12.757(4), c = 15.714(5) 牛琣 = 111.966(5), b = 90.338(6),g = 94.960(6),V = 1161.2(7) ?,Z = 2,Dc = 1.735 g/cm3,m = 2.286 mm-1,Mr = 606.67, F(000) = 602,R = 0.0355, wR = 0.0757。通过3-(3-吡啶基)丙烯酸配体羧基氧原子桥联形成一维链状结构,同时链与链通过氢键及-相互作用形成了三维的网络结构。A novel one-dimensional chain coordination polymer [Nd(C8H7NO2)(3)(H2O)](n) was synthesized by the hydrothermal reaction between 3-(3-pyridyl)acrylate acid and Nd(NO)(3).6H(2)O. The structure was characterized by elemental and thermal gravimetric analyses as well as IR spectroscopy. X-ray single-crystal analysis reveals the crystal of the title compound is of triclinic, space group P (1) over bar with a = 6.275(2), b = 12.757(4), c = 15.714(5) Angstrom, alpha = 111.966(5), beta = 90.338(6), gamma = 94.960(6)degrees, V = 1161.2(7) Angstrom(3), Z = 2, D-c = 1.735 g/cm(3), mu = 2.286 mm(-1), F(000) = 602, R = 0.0355 and wR = 0.0757. A one-dimensional chain is formed between the Nd3+ cations by carboxyl of 3-(3-pyridyl)acrylate acid, and three-dimensional nets are constructed by hydrogen bonds and pi-pi stacking interactions.

关 键 词：一维链状配位聚合物 水热合成技术 晶体结构 [Nd(C8H7NO2)3(H2O)]n 

分 类 号：O631[理学—高分子化学]