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以 2 羰基丙酸水杨酰腙 (C10 H10 N2 O4)作为配体与碳酸钙在水中反应 ,在DMF (N ,N 二甲基甲酰胺 )和DMSO (二甲基亚砜 )的混合溶剂中培养了单晶 ,其组成为 [Ca2 (C10 H8N2 O4) 2 (DMSO) 2 (H2 O) 4 ]·2DMSO [C10 H8N2 O2 -4为 2 羰基丙酸水杨酰腙负离子 ] .测定了单晶的结构 ,该单晶为黄色 ,属单斜晶系 ,空间群为P2 (1) /c,晶胞参数a =1 0 63 4 (3 )nm ,b =1 70 3 5(5)nm ,c =1 2 183 (3 )nm ,β=10 6 180 (5)° ,V =2 1192 (10 )nm3,Dc=1 412Mg·m- 3 ,Z =2 ,F(0 0 0 ) =944,μ =0 53 4mm- 1,GOF =0 867.所测单晶是以 2 羰基丙酸水杨酰腙羧基上的一个氧原子作为桥联的双核钙 (II)配合物 ,两个Ca2 + 均处于五角双锥的七配位环境中 ,锥底为配体 2 羰基丙酸水杨酰腙中的三个配位原子 ,以及另一 2 羰基丙酸水杨酰腙羧基上的桥联氧原子和一个水分子的配位氧原子 ,锥顶为一配位水和一配位的DMSO分子 ,即溶剂DMSO也参与了配位 ,从晶胞结构看 ,晶体中除配位的DMSO分子外 ,还有自由的DMSO溶剂分子 ,它们与配位水以氢键连接存在于晶格之中 ,在空间形成了二维网状结构 .通过TG DTG还测定了配合物的热稳定性
2 carbonyl propionate salicyloyl hydrazone (C10 H10 N2 O4) was used as a ligand to react with calcium carbonate in water and cultured in a mixed solvent of DMF (N, N-dimethylformamide) and DMSO (dimethylsulfoxide) Single crystal having a composition of [Ca2 (C10H8N2O4) 2 (DMSO) 2 (H2O) 4] 2DMSO [C10H8N2O2-4 is a 2-carbonyl propionate salicyloyl hydrazone anion] The structure of a single crystal was measured, The single crystal is yellow and belongs to the monoclinic system. The space group is P2 (1) / c. The cell parameters a = 1 0 63 4 (3) nm, b = 1 70 3 5 (5) nm, c = 1 2 183 (3) nm, β = 10 6 180 (5) °, V = 2 1192 (10) nm3, Dc = 1 412Mg · m-3, Z = 2, F (0 0 0) = 944, μ = 0 53 4mm-1, GOF = 0 867. The measured single crystal is a dinuclear calcium (II) complex bridged by one oxygen atom of 2-carbonylpropionate salicyloyl hydrazone carboxyl group, and both Ca2 + are in pentagonal bipyramid In the seven-coordinate environment, the conical bottom is the three coordination atoms in the ligand 2 carbonyl propionyl salicyloyl hydrazone and the bridging oxygen atom in another 2 carbonyl propionate salicyloyl hydrazone carboxylate and a coordination oxygen atom of a water molecule , Cone top with a coordinated water and a coordination of DMSO molecules, namely solvent DMSO is also involved in coordination from the unit cell junction In addition to the coordinated DMSO molecules, there are also free DMSO solvent molecules, which exist in the lattice with the coordination water via hydrogen bonding and form a two-dimensional network structure in space. Through TG DTG also The thermal stability of the complex was determined