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Molecular dynamics study by the neutron inelastic scattering method:I. Complexes [Co(NH 3) 6]I 3, [Co(NH 3) 6]Cl 3, [Co(NH 3) 6]I 2

Authors
Journal
Physica
0031-8914
Publisher
Elsevier
Publication Date
Volume
35
Issue
4
Identifiers
DOI: 10.1016/0031-8914(67)90118-8

Abstract

Abstract The molecular-lattice dynamics of the complex compounds [Co(NH 3) 6]I 3, [Co(NH 3) 6]Cl 3, and [Co(NH 3) 6]I 2 were studied by the inelastic neutron scattering method (INS). The spectra obtained for [Co(NH 3) 6]I 3 and [Co(NH 3) 6]Cl 3 were interpreted as being caused by internal vibrations of the [Co(NH 3) 6] octaheder similar to those of a XY 6 molecule. A comparison of the spectra obtained for [Co(NH 3) 6]I 3 and [Co(NH 3) 6]I 2 led to the assumption that the Debye temperature of the first substance is higher then that of the second. This demonstrates that there is a considerable freedom of translational and rotational motions in [Co(NH 3) 6]I 2.

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