Syntheses Of Coordination Compounds Based On Benzimidazole-containing Thiocalix[4]arene And Study In Their Luminescent Properties

In this paper,four novel coordination polymers,namely,[Ag（L）_0.5]（NO₃）（1）,[Cu（L）_0.5（NO₃）]（2）,[Co（L）_0.5（L1）]·2DMA（3）and[Ni（L）（L2）（H₂O）]·3H₂O（4）,were successfully synthesized based on a new thiacalix[4]arene ligand（L）under solvothermal condition（H₂L1=diphenic acid and H₂L2=p-phthalic acid）.In the structures of 1 and 2,neutral L ligands bridge Ag（I）or Cu（I）cations to form unique bi-metal chains,respectively.In the structure of 3,the L1^2-anions and L ligands connected Co（II）ions to form a complex three-dimensional network.In 4,L2^2-anions and L ligands connected Ni（II）ions to form a layer.The solid state luminescent behaviors of 1 and 2 have been studied,and 2 shows a good luminescent behavior at low temperature.