Synthesis, Crystal Structure and Luminescence of One Cd^Ⅱ Coordination Polymer with Bifunctional Zwitterionic Ligand  

作　　者：孙玉 周凌云 汤琳 张建勇 

机构地区：[1]School of Pharmacy, Wannan Medical College [2]Shanghai Institute of Technology

出　　处：《Chinese Journal of Structural Chemistry》2015年第10期1539-1545,共7页结构化学（英文）

基　　金：Partly supported by the Key Research Foundation of Wannan Medical College(WK2014Z06);Doctoral Starting up Foundation of Wannan Medical College(201219);the Foundation of Science and Technology Development of Shanghai(14ZR1447900)

摘　　要：One coordination polymer with bifunctional zwitterionic ligand bearing both carboxylate and tetrazolate groups, [Cd（L1）（N3）]n·n H2O（1, L1 = 1-（carboxylatomethyl）-4-（5-tetrazolato）pyridinium], has been in situ hydrothermally synthesized and structurally characterized. Compound 1 crystallizes in monoclinic with C2/m space group, a = 21.8038（17）, b = 7.6087（6）, c = 7.8342（6） A, β = 106.166（2）o, V = 1248.29（17） A3, Z = 4, Mr = 376.62, Dc = 2.004 g·cm-3, F（000） = 736, μ = 1.772 mm-1, Rint = 0.0217, S = 1.088, the final R = 0.0415 and w R = 0.1128 for 1020 observed reflections with I 2σ（I）. The compound exhibits two-dimensional coordination sheets, in which infinite anionic [Cd（CN4）（N3）（OCO）]n chains with the tricomponent（μ-azide）（μ-tetrazolate）（μ-carboxylate） bridges are cross-linked by cationic 1-methylenepyridinium spacers of the L1 ligand. This compound in the solid state exhibits blue luminescence assignable to intraligand transitions.One coordination polymer with bifunctional zwitterionic ligand bearing both carboxylate and tetrazolate groups, [Cd（L1）（N3）]n·n H2O（1, L1 = 1-（carboxylatomethyl）-4-（5-tetrazolato）pyridinium], has been in situ hydrothermally synthesized and structurally characterized. Compound 1 crystallizes in monoclinic with C2/m space group, a = 21.8038（17）, b = 7.6087（6）, c = 7.8342（6） A, β = 106.166（2）o, V = 1248.29（17） A3, Z = 4, Mr = 376.62, Dc = 2.004 g·cm-3, F（000） = 736, μ = 1.772 mm-1, Rint = 0.0217, S = 1.088, the final R = 0.0415 and w R = 0.1128 for 1020 observed reflections with I 2σ（I）. The compound exhibits two-dimensional coordination sheets, in which infinite anionic [Cd（CN4）（N3）（OCO）]n chains with the tricomponent（μ-azide）（μ-tetrazolate）（μ-carboxylate） bridges are cross-linked by cationic 1-methylenepyridinium spacers of the L1 ligand. This compound in the solid state exhibits blue luminescence assignable to intraligand transitions.

关 键 词：zwitterionic ligand coordination polymers CARBOXYLATE TETRAZOLATE LUMINESCENCE 

分 类 号：O641.4[理学—物理化学]