钴、镍-氨基三乙酸配位聚合物Na[M(nta)]·H_2O(M=Co,Ni)的水热合成、结构与磁性  

Hydrothermal Syntheses, Crystal Structures and Magnetic Properties of Na[M(nta)]·H_2O(M=Co, Ni; nta=nitrilotriacetate)

作　　者：戴知旻[1,2] 施展 李光华[2] 付文升[2] 徐娓 冯守华[2] 

机构地区：[1]东北师范大学化学学院,长春130024 [2]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130023

出　　处：《高等学校化学学报》2003年第11期1950-1952,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 710 13 )资助

摘　　要：Two new three-dimensional coordination polymers, Na [M(nta)]·H 2O(M=Co, Ni) were hydrothermally synthesized and their structures were solved by single-crystal X-ray diffraction. Their structures were analogous and the two crystals belong to the orthorhombic system with space group P2 1, and cell parameters a=0.785 7(9) nm, b=0.974 3(12) nm, c= 1.219 0(18) nm, V=0.933 4(2) nm 3, Z=4 for Na [Co(nta)]·H 2O and a=0.796 7(16) nm, b= 0.975 2(2) nm, c=1.218 2(2) nm, V=0\^946 5(3) nm 3, Z=4 for Na [Ni(nta)]·H 2O. The structures of the title compounds are considered to be four M(nta) - octahedra connected by the sodium atoms, thus the three-dimensional tunnels were formed. Variable temperature magnetic susceptibility indicates that the antiferromagnetic interaction exists in Na[Co(nta)]·H 2O and Na [Ni(nta)]·H 2O.Two new three-dimensional coordination polymers, Na [M(nta)]·H 2O(M=Co, Ni) were hydrothermally synthesized and their structures were solved by single-crystal X-ray diffraction. Their structures were analogous and the two crystals belong to the orthorhombic system with space group P2 1, and cell parameters a=0.785 7(9) nm, b=0.974 3(12) nm, c= 1.219 0(18) nm, V=0.933 4(2) nm 3, Z=4 for Na [Co(nta)]·H 2O and a=0.796 7(16) nm, b= 0.975 2(2) nm, c=1.218 2(2) nm, V=0\^946 5(3) nm 3, Z=4 for Na [Ni(nta)]·H 2O. The structures of the title compounds are considered to be four M(nta) - octahedra connected by the sodium atoms, thus the three-dimensional tunnels were formed. Variable temperature magnetic susceptibility indicates that the antiferromagnetic interaction exists in Na[Co(nta)]·H 2O and Na [Ni(nta)]·H 2O.

关 键 词：钴配合物 镍配合物 氨基三乙酸配位聚合物 Na[M(nta)]·H2O CO NI 水热合成 晶体结构 磁性 

分 类 号：O634[理学—高分子化学]