Vibrational spectroscopic studies of Guanidinium metal (MII) sulphate hexahydrates [MII = Co, Fe, Ni]

Autor(en)

M. Junaid Bushiri, C.J. Antony, Michel Fleck

Abstrakt

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(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Cochin University of Science and Technology, University of Kerala

Journal

Solid State Communications

Band

143

Seiten

348-352

Anzahl der Seiten

5

ISSN

0038-1098

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

105113 Kristallographie, 1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/034782eb-b3de-4a01-b685-3c72e6dc4ade