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9. A Two-dimensional Rare Earth Metal-Organic Polymer {[Pr2(csph)2(H2O)4]·6H2O}nwith 3-Carboxylate-4-sulfonatophenolate (csph) Ligands

Author

Wu, Gang, Wang, Zhu-Mei, Ge, Xiu-Tao, Wang, Xiao-Ling, and Zhang, Qian-Feng

Abstract

A two-dimensional rare earth metal-organic polymer {[Pr2(csph)2(H2O)4]· 6H2O}n(1) with 3- carboxylate-4-sulfonato-phenolate (csph) ligands was obtained by hydrothermal synthesis and characterized by elemental analysis and IR spectroscopy, and also by single-crystal X-ray diffraction. The crystal is orthorhombic, space group Pbcn with a = 15.9113(6), b = 9.3563(4), c = 16.0497(6) Å , Z = 4, and V = 2240.46(16) Å3. The praseodymium atom is coordinated to eight oxygen atoms from the csph3-ligands and two water molecules to form a distorted dodecahedron. The csph3-ligands involved in forming a two-dimensional framework are all multiply bridging via the sulfonate (µ2, ?2) and the carboxylate groups (µ3, ?2:?1). The thermal stability of complex 1 was studied by thermogravimetric analysis (TGA), and the photoluminescence properties of complex 1 were also investigated

Published
2010
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