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Growth and characterisation of a new polymorph of barium maleate: A metal organic framework
L.P. Nair, B.R. Bijini, S. Prasanna, S.M. Eapen, C.M.K. Nair, , K. Rajendrababu
Published in Elsevier B.V.
2015
PMID: 25265523
Volume: 137
   
Pages: 778 - 784
Abstract
A new polymorph of barium maleate (BM) with chemical formula C24H14O24Ba5·7H2O is grown by modified gel method. Transparent plate like crystals of dimensions 9 × 4 × 1 mm3were obtained. Single crystal X-ray Diffraction analysis was done to determine the structure and the crystal belongs to triclinic system, P-1 space group with cell dimensions a = 7.2929(3) Å, b = 10.5454(4) Å, c = 14.2837(6) Å, α = 102.0350(10)°, β = 99.1580(10)°, γ = 102.9170(10)°. Hydrogen bonding stabilises the two dimensional polymeric crystal structure. Fourier Transform Infrared spectroscopic method was utilised for the analysis of various functional groups present in the complex. Elemental analysis confirmed the stoichiometry of the complex. Thermal properties of the crystal were studied by TGA/DTA. The material melts at 368 °C. The optical transparency of the crystal was studied using UV-Visible absorption spectra. The optical band gap is found to be 3.35 eV. © 2014 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
PublisherData powered by TypesetElsevier B.V.
ISSN13861425