Multiple regulated assembly, crystal structures and magnetic properties   of porous coordination polymers with flexible ligands

doi:10.1002/ejic.200500217

CORC > 北京大学 > 化学与分子工程学院

	Multiple regulated assembly, crystal structures and magnetic properties of porous coordination polymers with flexible ligands
	Sun, CY ; Zheng, XJ ; Gao, S ; Li, LC ; Jin, LP
刊名	欧洲无机化学杂志
	2005
关键词	cobalt coordination polymers magnetic properties nickel porous materials METAL-ORGANIC FRAMEWORKS SECONDARY BUILDING UNITS HYDROTHERMAL SYNTHESIS SORPTION PROPERTIES 1,2,4,5-BENZENETETRACARBOXYLIC ACID NETWORK DESIGN ADSORPTION COMPLEXES 1,4-BENZENEDICARBOXYLATE
DOI	10.1002/ejic.200500217
英文摘要	Four novel coordination polymers of Ni(II) and Co(II) with flexible ligands, namely [Ni(oba)(bpe)](n)(.)nH(2)O (1), [Co(oba)-(bpe) (2), [Ni(2)(oba)(2)(bPY)(2)(H(2)O)(2)](n) -nbpy (3), and [Co(oba)(bpy)1/2](n) (4) [H(2)oba = 4,4'-oxybis(benzoic acid), bpe = 1,2his (4-pyridyl)ethane, bpy = 4,4'-bipyridine] were synthesised by hydrothermal reactions and characterised by single-crystal X-ray diffraction, elemental analysis and IR spectroscopy. The Ni(II) ions in complex 1 are linked by flexible oba and bpe ligands to form square-grid-like corrugated sheets. These sheets are interpenetrated with each other, resulting in the formation of a 3D porous network with lattice water molecules in the channels. The variable temperature X-ray diffraction analysis shows that the framework is stable up to 300 degrees C despite the complete removal of the lattice water molecules during the heat treatment. Complex 2 can be re-garded as possessing a alpha-polonium-related topology. Triple interpenetration occurs to form a nonporous structure. In complex 3, the oba and bpy ligands link Ni(II) ions into 1D train-like boxes. These boxes are entangled, with the aid of hydrogen bonds, leading to the formation of a 3D porous supramolecular architecture. Free bpy ligands reside in the channels. The Co(II) ions in complex 4 are linked by oba and bpy ligands to form a complicated 3D coordination polymer. The lattice water molecules in complex 1 and free bpy ligands in complex 3 can be regarded as templates that play an important role in the formation of the porous structures of complexes 1 and 3. The magnetic properties of complexes 1, 2, and 4 have also been investigated. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005).; Chemistry, Inorganic & Nuclear; SCI(E); 69; ARTICLE; 20; 4150-4159
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/253879]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Sun, CY,Zheng, XJ,Gao, S,et al. Multiple regulated assembly, crystal structures and magnetic properties of porous coordination polymers with flexible ligands[J]. 欧洲无机化学杂志,2005.
APA	Sun, CY,Zheng, XJ,Gao, S,Li, LC,&Jin, LP.(2005).Multiple regulated assembly, crystal structures and magnetic properties of porous coordination polymers with flexible ligands.欧洲无机化学杂志.
MLA	Sun, CY,et al."Multiple regulated assembly, crystal structures and magnetic properties of porous coordination polymers with flexible ligands".欧洲无机化学杂志 (2005).