Chiral Helices in a 3D Network of Zn2(en)V2O7 (en = Ethylenediamine)

S. Krachodnok; K.J. Haller; I.D. Williams

doi:10.4028/www.scientific.net/AMR.55-57.669

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Fabrication of Gold Nanocubes by the Electrochemical Method
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Synthesis of Gold Nanodogbones by the Seed Mediated Growth Method with Addition of Vitamin C Solvent
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Chiral Helices in a 3D Network of Zn₂(en)V₂O₇ (en = Ethylenediamine)
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Optical Properties of Metal Free and Metal Phthalocyanine by Molecular Band Calculation
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Modification of Thai Silk Fibroin Scaffolds by Gelatin Conjugation for Tissue Engineering
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 55-57Chiral Helices in a 3D Network of Zn2(en)V2O7 (en...

Chiral Helices in a 3D Network of Zn₂(en)V₂O₇ (en = Ethylenediamine)

Abstract:

An inorganic-organic hybrid vanadate complex, Zn2(en)V2O7 (en = ethylenediamine) has been hydrothermally synthesized and characterized by single-crystal X-ray crystallography, TG analysis, IR spectroscopy, and elemental analysis. The title compound crystallizes in the monoclinic space group P21 with a = 7.0885(7), b = 8.6040(9), c = 8.1869(8) Å, b = 112.224(2)° and V = 462.22(8) Å3, T = 298±2 K and R1[I>2s(I)] = 0.0291 for 2170 observed reflections. The structure consists of undulating sheets constructed from helical chains that share Zn coordination centers with repeating units propagated into a helix by the two-fold screw axes at 0, y, ½ and pillared with alternating VO4 tetrahedra to generate a 3D chiral network. Neighboring helices are interconnected by µ2-O bridges to form the three-dimensional network. The strength of the network is reinforced by hydrogen bonding. TG analysis shows thermal stability of the network up to 283 °C.