三维稀土配位聚合物[Ce_2(H_2btc)(btc)(H_2O)_2]_n的水热合成与晶体结构  

Hydrothermal Synthesis and Crystal Structure of a 3D Rare-earth Coordination Polymer [Ce_2(H_2btc)(btc)(H_2O)_2]_n

作　　者：范海林 曹敏花[1] 齐艳娟[1] 毛莉[1] 胡长文[1] 王恩波[1] 

机构地区：[1]东北师范大学多酸化学研究所

出　　处：《高等学校化学学报》2004年第8期1419-1421,M009,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 710 0 7和 2 0 2 710 0 7)资助

摘　　要：A new 3D rare-earth coordination polymer[Ce 2(H 2btc)(btc)(H 2O) 2] n (1) was hydrothermally synthesized and its structure was characterized by the single crystal X-ray diffraction. Compound 1 crystallizes in a triclinic crystal system,space group P 1 with a =0.641 17(13) nm, b = 0.939 41(19) nm , c =0.957 97(19) nm, α =103.888(17)°, β =74.57(3)°, γ =76.71(3)°, V = 0.540 98(19) nm 3 , Z=1,\{R=\}0.026 4,wR 2 =0.077 9. The three-dimensional compound 1 is built by linking one crystallographically independent nine-coordination Ce(Ⅲ) subunit through the btc and the H 2btc ligands. Each nine-coordinate Ce(Ⅲ) unit is a distorted tricapped trigonal prism,of which eight oxygen atoms belong to six different carboxylate groups of btc or H 2btc and a water molecule,with the Ce(Ⅲ)—O bond lengths ranging from 0.240 3(3) nm to 0.263 6(3) nm.A new 3D rare-earth coordination polymer[Ce 2(H 2btc)(btc)(H 2O) 2] n (1) was hydrothermally synthesized and its structure was characterized by the single crystal X-ray diffraction. Compound 1 crystallizes in a triclinic crystal system,space group P 1 with a =0.641 17(13) nm, b = 0.939 41(19) nm , c =0.957 97(19) nm, α =103.888(17)°, β =74.57(3)°, γ =76.71(3)°, V = 0.540 98(19) nm 3 , Z=1,\{R=\}0.026 4,wR 2 =0.077 9. The three-dimensional compound 1 is built by linking one crystallographically independent nine-coordination Ce(Ⅲ) subunit through the btc and the H 2btc ligands. Each nine-coordinate Ce(Ⅲ) unit is a distorted tricapped trigonal prism,of which eight oxygen atoms belong to six different carboxylate groups of btc or H 2btc and a water molecule,with the Ce(Ⅲ)—O bond lengths ranging from 0.240 3(3) nm to 0.263 6(3) nm.

关 键 词：水热合成 配位聚合物 铈 晶体结构 

分 类 号：O611[理学—无机化学]