作者：WANG; Xiu-Yan; LI; Guan-Ting; SUN; Di-...crystalstructurecoordinationpolymeracid
摘要：In this work,we synthesized a new Cd(II) coordination polymer,[Cd(L)(cmb)H2O]?H2O (1),by using mixed 2-(carboxymethoxy)benzoic acid (H2cmb) and typical chelating N-donor ligands 2-(2-fluoro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline ligand (L).1 crystalli- zes in monoclinic,space group P21/c with a=17.6150(8),b=9.7811(4),c=18.1603(8) A,β=118.9150(10)o,V=2738.9(2) A3,Z=4,C28H20CdF2N4O7,Mr=674.88,Dc=1.637 g/cm3,F(000)=1352,μ(MoKa)=0.865 mm–1,R=0.0643 and wR=0.1976.In 1,the cmb2-anions link neighboring Cd(II) atoms in a bis-chelating mode,yielding a one-dimensional chain structure along the b axis.The L ligands are attached on one side of the chain through chelating the Cd(II) atoms,and are stacked with those of an adjacent chain through π-π interactions to generate a one-dimensional double-chain structure.Furthermore,the one-dimensional double-chains are stacked by C-H…π interactions between the carbon atom of L ligand and the benzene ring of cmb^2- ligand to give a layer structure.Moreover,the solid state luminescent property of 1 was also investigated at room temperature.
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