Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595507 | Solid State Communications | 2007 | 5 Pages |
Abstract
The Raman and FTIR spectra of [C(NH2)3]2M(SO4)2â
6H2O (with M = Co, Fe, Ni) were recorded and analysed. The observed spectral bands are assigned in terms of vibrations of guanidinium ions, sulphate groups and water molecules. The analysis shows that the sulphate tetrahedra are distorted from their free state symmetry Td to C1. This is attributed to the presence of hydrogen bonds from water molecules. The order of distortion of the metal oxygen octahedra influenced the distortion of the sulphate tetrahedra. The appearance of ν1-ν3 modes of water molecules above 3300 cmâ1 indicates the presence of weak hydrogen bonds.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
M. Junaid Bushiri, C.J. Antony, Michel Fleck,