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机构地区:[1]齐齐哈尔大学应用技术学院,黑龙江齐齐哈尔161006 [2]中国科学院福建物质结构研究所,福建福州350002
出 处:《东北师大学报(自然科学版)》2008年第3期76-79,共4页Journal of Northeast Normal University(Natural Science Edition)
基 金:国家自然科学基金资助项目(20271050);黑龙江省自然科学基金资助项目(B9810);齐齐哈尔市科技计划项目(2007)
摘 要:在水热条件下,利用CdCl2和哌嗪(哌嗪=PPZ)在水溶液中反应,合成了一维配位聚合物[Cd(HPPZ)Cl3].H2O.该分子中Cl-双桥连Cd(Ⅱ)形成一维直线型链,而PPZ通过1个N原子与1个Cd(Ⅱ)配位,交替悬挂在链的两端.链与链之间通过N—H…O和O—H…Cl氢键作用形成三维超分子网络.结果表明:该配位聚合物属于正交晶系,Pnma空间群;晶胞参数a=0.775 3(5)nm,b=0.990 9(2)nm,c=1.337 7(4)nm,V=1.027 8(01)nm3,Z=4,最后一致性因子[I>2σ(I)],R1=0.027 7,wR2=0.071 2.A novel 1-D transition metal coordination polymers [ Cd ( HPIPZ) Cl3 ]·H2O, ( PIPZ = piperazine ) has been hydrothermally synthesized and characterized by means of elemental analyses and single crystal X- ray diffraction. Chlorine Ions doubly bridge the Cd( Ⅱ ) to form a 1-D Chain, HPIPZ molecules are attached to thel-D chain as branches of the chain by coordinating to the Cd( Ⅱ ). 3-D supramolecular network was formed through N--H…O and O-H…Cl hydrogen bond interactions between chains. The crystallographic data are crystallized in Monoclinic with group Pnma, a = 0. 775 3(5) nm, b = 0. 990 9 (2) nm, c = 1. 337 7 (4) nm, V = 1. 027 8 (01 ) nm^3, Z = 4, R 1 = 0. 027 7, ωR 2 = 0.071 2 [ I 〉 2σ ( I ) ]. Moreover, the spectral properties and TGA spectrum have been further studied and discussed.
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