Urothermal synthesis of two photoluminescent cadmium coordination polymers
摘要:
Two new Cd coordination polymers, [Cd(5-Nisp)(e-urea)](n) (1), and [Cd-2(5-Hisp)(2)(e-urea)(2)(en)](n) (2), (where 5-Nisp = 5-nitroisophthalate; 5-Hisp = 5-hydroxyisophthalate; e-urea = ethyleneurea; en = 1,2-ethanediamine), have been urothermally synthesized by using ethyleneurea hemihydrate as the solvent. Single-crystal X-ray diffraction analyses reveal that both 1 and 2 have linear chain sub-structures linked by 5-Nisp ligands or 5-Hisp ligands into three-dimensional frameworks. The thermogravimetric behavior and the photoluminescent properties of 1 and 2 were studied. (C) 2013 Elsevier B.V. All rights reserved.