Polymorphism of (H(2)mela)(2)[CuCl5]Cl (mela = melamine): structures,   transformation and magnetic properties

doi:10.1039/c1ce05143a

CORC > 北京大学 > 化学与分子工程学院

	Polymorphism of (H(2)mela)(2)[CuCl5]Cl (mela = melamine): structures, transformation and magnetic properties
	Weng, Dan-Feng ; Wang, Bing-Wu ; Wang, Zhe-Ming ; Gao, Song
刊名	crystengcomm
	2011
关键词	TO-CRYSTAL TRANSFORMATION POWDER-DIFFRACTION DATA SOLID-STATE NMR HYDROGEN-BONDS 2-DIMENSIONAL NETWORK COORDINATION POLYMERS NONCOVALENT SYNTHESIS MOLECULAR-STRUCTURE CHAIN POLYMER WATER CHAINS
DOI	10.1039/c1ce05143a
英文摘要	Two polymorphs of (H(2)mela)(2)[CuCl5]Cl (mela = melamine) prepared by solution diffusion methods have been characterized structurally and magnetically. The kinetic phase in the monoclinic space group P2/c was first crystallized. When kept in the mother solution, the kinetic phase gradually dissolved, while the thermodynamically stable phase in the monoclinic space group P2(1)/m appeared and became the final product. This transformation process was monitored by powder X-ray diffraction. Structural analysis revealed that the two polymorphs consist of alternatively arranged negative layers of [CuCl53-](n) chains and discrete non-coordination Cl- anions and positive layers of H-bonded dimers of [H(2)mela(2+)](2), assembled though H-bonds in the lattices. The difference between the two structures lies in the packing and H-bonding patterns in the solids. The transformation associated changes in structures mainly referred to H-bonding are discussed. Both compounds are antiferromagnetic chains. Thermal stability and IR spectroscopic properties were also studied.; Chemistry, Multidisciplinary; Crystallography; SCI(E); 11; ARTICLE; 14; 4683-4688; 13
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151093]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Weng, Dan-Feng,Wang, Bing-Wu,Wang, Zhe-Ming,et al. Polymorphism of (H(2)mela)(2)[CuCl5]Cl (mela = melamine): structures, transformation and magnetic properties[J]. crystengcomm,2011.
APA	Weng, Dan-Feng,Wang, Bing-Wu,Wang, Zhe-Ming,&Gao, Song.(2011).Polymorphism of (H(2)mela)(2)[CuCl5]Cl (mela = melamine): structures, transformation and magnetic properties.crystengcomm.
MLA	Weng, Dan-Feng,et al."Polymorphism of (H(2)mela)(2)[CuCl5]Cl (mela = melamine): structures, transformation and magnetic properties".crystengcomm (2011).