新型一维Cd(Ⅱ)配位聚合物的合成、晶体结构和光致发光性质(英文)  

Synthesis, Crystal Structure and Photoluminescence of a New 1D Cd(Ⅱ) Coordination Polymer

作　　者：刘国成[1] 张金霞[1] 王秀丽[1] 陈勇强[1] 

机构地区：[1]渤海大学化学化工学院,锦州121000

出　　处：《无机化学学报》2010年第5期913-916,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.20871022)

摘　　要：A new 1D chain coordination polymer [Cd(dpq)(ox)0.5Cl]n (1) (dpq=dipyrido[3,2-d:2′,3′-f]quinoxaline and ox=oxalate) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR and single crystal X-ray diffraction analysis. Compound 1 (CdClC15H8N4O2): monoclinic, space group P21/c, a=0.854 04(5) nm, b=2.094 90(13) nm, c=0.839 22(5) nm, Z=4, V=1.438(15) nm3, Mr=424.11, Dc=1.959 g·cm-3, F(000)=828.0, μ= 1.719 mm-1, S=1.028, the final R=0.025 8 and wR=0.057 5. The crystal structure analysis indicates that the cadmium ion is coordinated by two oxygen atoms from a oxalate, two chelating nitrogen atoms from a dpq molecule and two Cl-anions. The adjacent Cd(Ⅱ) ions are linked by Cl-anions and oxalate ligands in alternate sequence to form a 1D chain coordination polymer and the adjacent chains are further connected by π-π stacking interactions to form a 2D supramolecular network. Moreover, the title compound exhibits blue emission in the solid state at room temperature.A new 1D chain coordination polymer [Cd（dpq）（ox）0.5Cl]n （1） （dpq=dipyrido[3,2-d：2′,3′-f]quinoxaline and ox=oxalate） has been hydrothermally synthesized and structurally characterized by elemental analysis, IR and single crystal X-ray diffraction analysis. Compound 1 （CdClC15H8N4O2）： monoclinic, space group P21/c, a=0.854 04（5） nm, b=2.094 90（13） nm, c=0.839 22（5） nm, Z=4, V=1.438（15） nm3, Mr=424.11, Dc=1.959 g·cm-3, F（000）=828.0, μ= 1.719 mm-1, S=1.028, the final R=0.025 8 and wR=0.057 5. The crystal structure analysis indicates that the cadmium ion is coordinated by two oxygen atoms from a oxalate, two chelating nitrogen atoms from a dpq molecule and two Cl-anions. The adjacent Cd（Ⅱ） ions are linked by Cl-anions and oxalate ligands in alternate sequence to form a 1D chain coordination polymer and the adjacent chains are further connected by π-π stacking interactions to form a 2D supramolecular network. Moreover, the title compound exhibits blue emission in the solid state at room temperature.

关 键 词：草酸 晶体结构 镉(Ⅱ)配合物 光致发光性质 

分 类 号：O614.242[理学—无机化学]