A 2D Brickwall-like Copper(II) Coordination Polymer Based on Phenyliminodiacetate and 4,4΄-Bipyridine:Synthesis, Crystal Structure and Magnetic Property

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摘要 A novel copper(II) coordination polymer of {[Cu3L2(4,4΄-bipy)4](ClO4)2·20H2O}n (1) was synthesized by the reaction of H2L (C6H5N(CH2COOH)2, phenyliminodiacetic acid), CuSO4·5H2O, NaClO4·H2O and 4,4΄-bipy (4,4΄-bipyridine) in water/methanol, followed by slow evaporating at room temperature. The compound was characterized by elemental analysis (EA), infrared spectroscopy (IR), thermogravimetric analysis (TGA) and single-crystal/powder X-ray diffraction. The result of single-crystal X-ray diffraction analysis reveals that 1 crystallizes in the monoclinic crystal system with C2/c space group, a = 2.9974(4), b = 1.7270(2), c = 2.0007(3) nm, β = 128.793(2)º, V = 8.0722(19) nm3, Z = 4, Dc = 1.472 g·cm−3, = 0.942 mm−1, F(000) = 3716, R = 0.0487 and wR = 0.1204 (I > 2(I)). The basic structural unit of 1 is a trinuclear cluster unit of [Cu3L2]2+, which is constructed by two μ2-L2− ligands bridging and chelating three Cu(II) ions. These [Cu3L2]2+ units are connected with each other by 4,4΄-bipy ligands to generate a 2D cation brickwall-like network of [Cu3L2(4,4΄-bipy)4]n2n+. These adjacent 2D cation layers are further stacked in a staggered fashion via interlayer stacking interactions to form a 3D supramolecular structure with 1D open square channels, in which the ClO4− counter anions and lattice water molecules are filled. Furthermore, the magnetic property of 1 was also investigated.

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	王小兵
	陆政安
	卢文贯

关键词 ： coordination polymers (CPs), copper(II) compound, crystal structure, magnetic property

Abstract：.A novel copper(II) coordination polymer of {[Cu3L2(4,4΄-bipy)4](ClO4)2·20H2O}n (1) was synthesized by the reaction of H2L (C6H5N(CH2COOH)2, phenyliminodiacetic acid), CuSO4·5H2O, NaClO4·H2O and 4,4΄-bipy (4,4΄-bipyridine) in water/methanol, followed by slow evaporating at room temperature. The compound was characterized by elemental analysis (EA), infrared spectroscopy (IR), thermogravimetric analysis (TGA) and single-crystal/powder X-ray diffraction. The result of single-crystal X-ray diffraction analysis reveals that 1 crystallizes in the monoclinic crystal system with C2/c space group, a = 2.9974(4), b = 1.7270(2), c = 2.0007(3) nm, β = 128.793(2)º, V = 8.0722(19) nm3, Z = 4, Dc = 1.472 g·cm−3, = 0.942 mm−1, F(000) = 3716, R = 0.0487 and wR = 0.1204 (I > 2(I)). The basic structural unit of 1 is a trinuclear cluster unit of [Cu3L2]2+, which is constructed by two μ2-L2− ligands bridging and chelating three Cu(II) ions. These [Cu3L2]2+ units are connected with each other by 4,4΄-bipy ligands to generate a 2D cation brickwall-like network of [Cu3L2(4,4΄-bipy)4]n2n+. These adjacent 2D cation layers are further stacked in a staggered fashion via interlayer stacking interactions to form a 3D supramolecular structure with 1D open square channels, in which the ClO4− counter anions and lattice water molecules are filled. Furthermore, the magnetic property of 1 was also investigated.

Key words： coordination polymers (CPs) copper(II) compound crystal structure magnetic property

收稿日期: 2014-10-30 出版日期: 2015-03-16

基金资助:

This work was supported by the National Natural Science Foundation of China (No. 21071099)

通讯作者: 卢文贯 E-mail: lwg@sgu.edu.cn

引用本文:

王小兵;陆政安;卢文贯. A 2D Brickwall-like Copper(II) Coordination Polymer Based on Phenyliminodiacetate and 4,4΄-Bipyridine:Synthesis, Crystal Structure and Magnetic Property[J]. 结构化学, 2015, 34(4): 619-623.
WANG Xiao-Bing;LU Zheng-An;LU Wen-Guan. A 2D Brickwall-like Copper(II) Coordination Polymer Based on Phenyliminodiacetate and 4,4΄-Bipyridine:Synthesis, Crystal Structure and Magnetic Property. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2015, 34(4): 619-623.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2015/V34/I4/619

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