Synthesis, Structure and Photoluminescence of a Binuclear Zinc(Ⅱ) Coordination Polymer Based on 2-Carboxycinnamic Acid and Dipyrido3,2-a:2',3'-c-phenazine

摘要

A binuclear zinc(Ⅱ) complex with 2-carboxycinnamic acid(2-ccm) and dipyrido-[3,2-a:2′,3′-c]phenazine(DPPZ),{[Zn2(2-ccm)2(DPPZ)2]·2H2O}n,was synthesized and charac-terized by elemental analysis,IR,single-crystal X-ray diffraction,thermal gravimetry and fluo-rescent emission.It crystallizes in monoclinic,space group P21/c with a=13.409(4),b=25.530(7),c=13.952(4) ,β=99.554(3)°,V=4710(2) 3,Z=4,C56H36N8O10Zn2,Mr=1111.67,Dc=1.568g/cm3,μ(MoKa)=1.093 mm-1,F(000)=2272,R=0.0422 and wR=0.0895.In the crystal,the basic unit of 1 is a binuclear Zn2 entity which is linked by 2-ccm ligand to form a 1D double chain along the a axis.The O-H…O hydrogen bonding and π-π interactions lead to a 3D supramolecular motif.In addition,thermal and luminescent properties of complex 1 have also been investigated.