CRYSTAL STRUCTURE AND SPECTROSCOPIC CHARACTERIZATION OF A COORDINATION POLYMER OF COPPER(II) CHLORIDE WITH ETHYLENEDIAMINE AND THE 2-HYDROXYBENZOATE ION
S.S. Batool1, S.R. Gilani1, M.N. Tahir2, A. Siddique3, W.T.A. Harrison4
1University of Engineering and Technology, Lahore, Pakistan
syeda_shahzadi_uet@yahoo.com
2University of Sargodha, Sargodha, Pakistan
3Government Post Graduate Islamia College for Women, Lahore, Pakistan
4University of Aberdeen, Aberdeen, Scotland
Ключевые слова: copper(II) carboxylate, ethylenediamine, salicylate, coordination polymer
Страницы: 1236-1241
Аннотация
A new mixed-ligand one-dimensional copper(II) coordination polymer [Cu(en)(sal)Cl] n where en = ethylenediamine(C2H8N2) and Hsal = 2-hydroxybenzoic acid (salicylic acid; C7H6O3) is synthesized and characterized by FTIR spectroscopy and single crystal X-ray diffraction. The structure contains Cu2+ ions in two different distorted octahedral coordination environments: an axially extended CuN4Cl2 moiety arising from a pair of bidentate en ligands and a CuO4Cl2 moiety arising from a pair of asymmetrically coordinated sal- anions. The chloride ions bridge the copper ions into a zigzag chain propagating in [001]. The structure is consolidated by N-H⋯O and N-H⋯Cl hydrogen bonds which generate a layered network. Crystal data: C9H13ClCuN2O3, M r = 296.20, monoclinic, P 21/ c , a = 13.9179(10) Å, b = 10.4900(8) Å, c = 8.5181(6) Å, b = 105.518(4)°, V = 1198.30(15) Å3, Z = 4, R ( F ) = 0.026, wR ( F 2) = 0.068.
DOI: 10.15372/JSC20160617
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