一个一维双吡啶双酰胺基铜配位聚合物的晶体结构及光催化性质

Crystal structure and photocatalytic activity of a one-dimensional bis-pyridyl-bis-amide-based Cu complex

利用水热合成方法,获得了一个一维管状Cu配位聚合物:[Cu(L)(bdc)]·3H_2O[1,3-H2BDC=1,3-苯二甲酸,L=N,N'-双(3-吡啶基)-5-羟基苯-1,3-双酰胺].配位聚合物的单晶结构测定为单斜晶系,P2_1/c空间群,P21/c,a=13.7463(15)?,b=18.768(2)?,c=10.096(3)?,α=90°,β=91.31°,γ=90°,Z=4,V=2604.1(8)?~3,M_r=616.03,Dc=1.571 g/cm^3,μ=0.906 mm^(-1),F(000)=1268,S=1.0,R=0.0732,wR=0.1314.结构分析指明,具有四方锥配位模式的Cu^(2+)通过μ_3-bdc连接成一维线性金属-有机链,两个上述链通过成对的μ_2-L配体连接成一维管状结构.此外,标题化合物对亚甲蓝和甲基橙的光催化降解活性被研究.

A one -dimensional tubular Cu coordination polymer [ Cu（L） （bdc） ] - 3H20 [ 1,3 -H2BDC = 1,3 - benzenedicarboxylic acid, L - N, N＇ - bis（pyridin - 3 - yl） - 5 - hydroxybenzene - 1,3 - dicarboxamide ] has been hydrothermally synthesized. Monoclinic, P21/c, a = 13. 7463 （ 15 ） °, b = 18. 768 （2） , c = 10.096（3） , α=90°,β =91.31°, y =90°, Z=4, V =2604. 1 （8） 2k3, Mr = 616.03, Dc = 1. 571 g/cm3, =0. 906 mm-1, F（000） = 1268, S = 1.0, R =0. 0732, wR =0. 1314. The structural analysis manifest that the Cu2＋ with tetragonal pyramid type coordination mode were bridged by μ3 -bdc anions to form a 1 D linear metal -organic chain. Two such chains were linked by pairs of μ2 -L ligands to form one -dimensional tubular structure. Moreover, the photocatalytic activity for the degradation of methylene blue and Methyl orange under UV light of the title complex were investigated.