نتایج جستجو برای: coordination polymer

تعداد نتایج: 169159  

Journal: :Chemical communications 2009
Hai-Xia Zhao Gui-Lin Zhuang Shu-Ting Wu La-Sheng Long Hai-Yan Guo Zuo-Guang Ye Rong-Bin Huang Lan-Sun Zheng

The anisotropy of polarization in a 1D copper(II)-based coordination polymer was investigated experimentally and theoretically for the first time, revealing that the origin of the ferroelectricity and its anisotropic nature are closely related to the coordination geometry of the metal ion and the packing mode of the coordination polymer.

Journal: :Coordination Chemistry Reviews 2013

Journal: :Organic & biomolecular chemistry 2015
Hiroki Makida Hajime Abe Masahiko Inouye

An amphiphilic meta-ethynylpyridine polymer with chiral amide side chains was developed. The polymer was prepared by sequential Sonogashira reactions, and the product was soluble in polar and apolar solvents. The additive effects of metal salts on the polymer were examined in water and aqueous EtOH on the basis of UV-vis and CD spectra. The enhancement of the positive Cotton effect and hypochro...

Journal: :Dalton transactions 2015
Chao Xu Niklas Hedin Hua-Tian Shi ZhiFeng Xin Qian-Feng Zhang

Chalcogenolate clusters can be interlinked with organic linkers into semiconducting coordination polymers with photocatalytic properties. Here, discrete clusters of Cd8S(SPh)14(DMF)3 were interlinked with 4,4'-bipyridine into a one dimensional coordination polymer of [Cd8S(SPh)14(DMF)(bpy)]n with helical chains. A stepwise mechanism for the assembly of the coordination polymer in DMF was reveal...

A. Morsali, M. Hosseyni Sadr Sh. Hojaghani

A new nano-sized cobalt(II) coordination polymer, (CoL1).0.5DMF.1.5CH3OH(1); [H2L1 = 5-(4-Carboxy phenyl azo) salicyilic acid] has been synthesized by a sonochemical method. The thermal stability of compound 1 was studied by thermo- gravimetric and differential thermal analyses. Nano-structure of this coordination polymer was characterized by elementa...

Journal: :Acta crystallographica. Section B, Structural science 2004
M Luz Godino Salido Paloma Arranz Mascarós Rafaél López Garzón M Dolores Gutiérrez Valero John N Low John F Gallagher Christopher Glidewell

Nine hydrated complexes of Group 2 (alkaline earth) cations with organic ligands which are N-substituted amino acids containing the 6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl group have been structurally characterized. The octahydrated calcium glycinate complex, where the six-coordinate Ca cation lies on an inversion centre in the space group P(-)1, forms a finite (zero-dimensio...

Journal: :Dalton transactions 2010
Gui-Lin Zhuang Yi-Chang Jin Hai-Xia Zhao Xiang-Jiang Kong La-Sheng Long Rong-Bin Huang Lan-Sun Zheng

A nanosized Gd6Ni3 cluster-based two-dimensional 3d-4f heterometallic coordination polymer has been synthesized under hydrothermal conditions using a mixture of H4PMIDA (H4PMIDA = N-(phosphonomethyl) iminodiacetic acid), Gd(ClO4)3 and Ni(CH3COO)2·4H2O. An electrical property investigation reveals that the coordination polymer exhibits a proton conductivity.

Journal: :Chemical communications 2013
Lei Chen Jiu-Yu Guo Xiao Xu Wei-Wei Ju Deng Zhang Dun-Ru Zhu Yan Xu

A novel 2-D coordination polymer constructed from high nuclearity nanosized Ho48 clusters was synthesised and structurally characterized using single-crystal X-ray analysis. The Ho48 cluster core with a charming waist drum-like structure was templated by CO3(2-) ions, and bridged by Ho-N bonds to get a 2-D coordination polymer.

Journal: :Chemical communications 2012
Witold M Bloch Christopher J Sumby

A silver(I) 3-D porous coordination polymer (PCP, 1) with a sodalite topology undergoes a remarkable reversible crystal-to-crystal expansion and contraction upon exposure to different solvents. Notably, complete desolvation of 1 also facilitates a transformation to a non-porous 2-D coordination polymer (2).

2008
Zhan-Qiang Fang Rong-Hua Zeng Zhao-Feng Song Mei Yang

The title compound, [Dy(2)(C(3)H(2)O(4))(3)(H(2)O)(6)](n), forms a coordination polymeric structure comprising hydrated dysprosium ions and malonate ligands. In the asymmetric unit, there are one dysprosium ion, one and a half malonate ligands, and three water mol-ecules. Each Dy(III) atom is coordinated by six O atoms from four malonate ligands and by three water mol-ecules, and displays a tri...

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