Synthesis and crystal structure of novel samarium coordination polymer derived from sulfonic acid ligand
来源期刊：JOURNAL OF RARE EARTHS2010年第S1期
论文作者：谢永荣 廖婷婷 谢主霖 何希云 杨瑞卿
文章页码：456 - 459
摘 要：The self-assembly of HL（L=[5-（ethoxycarbonyl）-4-phenyl-3,4-dihydropyrimidin-2（1H）-one-6-yl]methanesulfonate） with Sm（ClO4）3·6H2O yielded a 2D coordination polymer {[SmL3（H2O）2]·4H2O}n（1）.Its crystallographic data indicated that it belonged to a triclinic system,space group P-1,a=1.42233（8）,b=1.47155（8）,c=1.53868（9） nm,α=8.62710（10）,β=6.35250（10）,γ=71.5790（10）°,V=2.7241（3） nm3,Z=2,R1=0.0693,wR2=0.1054.X-ray analysis revealed that the local coordination environment around Sm（III） was a slightly distorted dodecahedron in which Sm center was eight-coordinate geometry with eight oxygen atoms from three sulfonic groups,three carbonyl groups and two aqua ligands.Each L-acted as a bidentate spacer to link two Sm centers,resulted in the formation of a 2D hexagonally grid network.The discrete 2D planes in 1 were assembled into a 3D supramolecular network via strong hydrogen bonds among noncoordinated aqua O atoms,coordinated aqua O atoms,and noncoordinated O atoms of sulfonic groups and carbonyl groups.Furthermore,this metal-organic polymer exhibited strong photoluminescence maximized at 379 nm upon 274 nm excitation in the solid state at room temperature.
谢永荣，廖婷婷，谢主霖，何希云，杨瑞卿
Key Laboratory of Jiangxi University for Functional Material Chemistry,College of Chemestry and Life Science,Gannan Normal University
摘 要：The self-assembly of HL（L=[5-（ethoxycarbonyl）-4-phenyl-3,4-dihydropyrimidin-2（1H）-one-6-yl]methanesulfonate） with Sm（ClO4）3·6H2O yielded a 2D coordination polymer {[SmL3（H2O）2]·4H2O}n（1）.Its crystallographic data indicated that it belonged to a triclinic system,space group P-1,a=1.42233（8）,b=1.47155（8）,c=1.53868（9） nm,α=8.62710（10）,β=6.35250（10）,γ=71.5790（10）°,V=2.7241（3） nm3,Z=2,R1=0.0693,wR2=0.1054.X-ray analysis revealed that the local coordination environment around Sm（III） was a slightly distorted dodecahedron in which Sm center was eight-coordinate geometry with eight oxygen atoms from three sulfonic groups,three carbonyl groups and two aqua ligands.Each L-acted as a bidentate spacer to link two Sm centers,resulted in the formation of a 2D hexagonally grid network.The discrete 2D planes in 1 were assembled into a 3D supramolecular network via strong hydrogen bonds among noncoordinated aqua O atoms,coordinated aqua O atoms,and noncoordinated O atoms of sulfonic groups and carbonyl groups.Furthermore,this metal-organic polymer exhibited strong photoluminescence maximized at 379 nm upon 274 nm excitation in the solid state at room temperature.
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