First one-dimensional homochiral stairway-like Cu(II) chains: crystal structures, circular dichroism (CD) spectra, ferroelectricity and antiferromagnetic properties

doi:10.1039/c2dt32578k

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	First one-dimensional homochiral stairway-like Cu(II) chains: crystal structures, circular dichroism (CD) spectra, ferroelectricity and antiferromagnetic properties
	Li, Xi-Li 1; Chen, Chun-Lai 1; Han, Li-Feng 1; Liu, Cai-Ming 2; Song, You 3; Yang, Xiao-Gang 1; Fang, Shao-Ming 1
刊名	DALTON TRANSACTIONS
	2013
卷号	42 期号:14 页码:5036-5041
ISSN号	1477-9226
DOI	10.1039/c2dt32578k
英文摘要	The reactions of enantiopure chiral ligands (+)/(-)- 4,5-pinenepyridyl-2-pyrazine (L-S/L-R) with CuCl2 center dot 2H(2)O in CH3OH/CH2Cl2 solution led to the formations of one-dimensional homochiral enantiomeric pairs with the formula [Cu(L-R/S)Cl-2]n center dot 2H(2)O (R-1 and S-1, the isomers containing the L-R and L-S ligands, respectively). The circular dichroism (CD) spectra verified their chiroptical activities and enantiomeric natures. Their structures have been determined by X-ray single-crystal analyses, showing stairway-like and mirror-symmetric features, which represent the first examples of homochiral metal complexes with stairway-like structures. The ferroelectric property measurement indicated that R-1 exhibits ferroelectricity with the remnant polarization (P-r) value of 0.02 mu C cm(-2) under an applied electric field of 6.1 kV cm(-1) at room temperature. The magnetic investigation of R-1 showed a weak intrachain antiferromagnetic coupling between Cu(II)-Cu(II) ions mediated by pyrazine, which can be interpreted by a spin-polarization mechanism. All these results suggested that R-1 and S-1 are potential multifunctional molecule-based materials combining optical activity, ferroelectricity and magnetism within one molecule.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000316295500034
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54035]
专题	中国科学院化学研究所
通讯作者	Li, Xi-Li
作者单位	1.Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Peoples R China 2.Chinese Acad Sci, Ctr Mol Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Nanjing Univ, State Key Lab Coordinat Chem, Sch Chem & Chem Engn, Nanjing Natl Lab Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Xi-Li,Chen, Chun-Lai,Han, Li-Feng,et al. First one-dimensional homochiral stairway-like Cu(II) chains: crystal structures, circular dichroism (CD) spectra, ferroelectricity and antiferromagnetic properties[J]. DALTON TRANSACTIONS,2013,42(14):5036-5041.
APA	Li, Xi-Li.,Chen, Chun-Lai.,Han, Li-Feng.,Liu, Cai-Ming.,Song, You.,...&Fang, Shao-Ming.(2013).First one-dimensional homochiral stairway-like Cu(II) chains: crystal structures, circular dichroism (CD) spectra, ferroelectricity and antiferromagnetic properties.DALTON TRANSACTIONS,42(14),5036-5041.
MLA	Li, Xi-Li,et al."First one-dimensional homochiral stairway-like Cu(II) chains: crystal structures, circular dichroism (CD) spectra, ferroelectricity and antiferromagnetic properties".DALTON TRANSACTIONS 42.14(2013):5036-5041.