Syntheses and Crystal Structures of Two Coordination Polymers Based on a Flexible Ligand N,N＇-Diacetic Acid Imidazolium

• 作者: 弓巧娟 张汉辉 柴小川 赵玲艳 陈义平
• 来源期刊: 结构化学
• 学科: 其他
• 关键词: N,N＇-diacetic acid imidazolium,crystal structure,topological analysis,fluorescent properties
• 年，卷（期）: 2012,（5）
• 页码范围: 749-757
• 页数: 9页
• 分类号: O
• 语种: 英文

摘要

Two coordination compounds with a flexible ligand N,N？-diacetic acid imidazolium（HDAM）,{[Co（trans-DAM）（bipy）（H2O）2]（OH）·4H2O}n 1 and {[Cd（trans-DAM）（bipy）（H2O）]（NO3）？2H2O}n 2（bipy = 4,4＇-bipyridine）,were prepared and characterized by single-crystal X-ray diffraction.Compound 1 crystallizes in monoclinic,space group P2/n with a = 7.589（6）,b = 11.444（2）,c = 12.894（3）（A°）,β = 90.99（3）°,V = 1119.8（4）（A°）^3,Z = 4,C8.5H14N2O5.5Co0.5,Mr = 261.68,Dc = 1.552 g/cm^3,F（000） = 546,μ = 0.832 mm^-1,the final R = 0.0657 and wR = 0.1958.Compound 2 crystallizes in the monoclinic C2 space group with a = 17.479（4）,b = 11.689（2）,c = 11.670（2）,β = 117.13（3）°,V = 2121.9（7）3,Z = 4,C17H21N5O10Cd,Mr = 567.79,Dc = 1.777 g/cm^3,F（000） = 1144,μ = 1.096 mm^-1,the final R = 0.0233 and wR = 0.0638.In 1,the Co（II） ions are linked by μ2-trans-DAM-and bipy ligands to build a 2D（4,4） rectangular grid layer,exhibiting a 4-connected sql net.As for 2,μ3-trans-DAM-and bipy bridge Cd（II） ions form a 2D double-layer,consisting of a couple of（4,4） grid layers,which can be viewed as a（3,4）-connected network.In both compounds,the 2D structures are stabilized by hydrogen bonding interactions to give 3D supramolecular frameworks.Additionally,FT-IR spectroscopy,UV-Visible spectroscopy,and the fluorescent properties are discussed.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	张汉辉		56	356	10.0	17.0
2	陈义平		32	34	3.0	4.0
3	柴小川		1	0	0.0	0.0
4	赵玲艳		2	3	1.0	1.0
5	弓巧娟		1	0	0.0	0.0