Vibrational spectroscopic studies of Guanidinium metal (MII) sulphate hexahydrates [MII = Co, Fe, Ni]
- Author(s)
- M. Junaid Bushiri, C.J. Antony, Michel Fleck
- Abstract
The Raman and FTIR spectra of [C(NH2)3]2M(SO4)2×6H2O (withM= Co, Fe, Ni) were recorded and analysed. The observed spectral bandsare assigned in terms of vibrations of guanidinium ions, sulphate groups and water molecules. The analysis shows that the sulphate tetrahedraare distorted from their free state symmetry Td to C1. This is attributed to the presence of hydrogen bonds from water molecules. The order ofdistortion of the metal oxygen octahedra influenced the distortion of the sulphate tetrahedra. The appearance of v1-v3 modes of water moleculesabove 3300 cm-1 indicates the presence of weak hydrogen bonds.c 2007 Elsevier Ltd. All rights reserved.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Cochin University of Science and Technology, University of Kerala
- Journal
- Solid State Communications
- Volume
- 143
- Pages
- 348-352
- No. of pages
- 5
- ISSN
- 0038-1098
- Publication date
- 2007
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography, 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/034782eb-b3de-4a01-b685-3c72e6dc4ade