Narayana, P. A. ; Venkateswarlu, Putcha (1970) Electronic absorption spectrum of Ni2+ doped in NH4Cl single crystal The Journal of Chemical Physics, 52 (10). 5159_1-5159_5. ISSN 0021-9606
Full text not available from this repository.
Official URL: http://jcp.aip.org/resource/1/jcpsa6/v52/i10/p5159...
Related URL: http://dx.doi.org/10.1063/1.1672754
Abstract
The absorption spectrum of Ni2+ doped ammonium chloride is studied in the temperature range of 293-77° K. From the observed spectrum it is concluded that Ni2+ goes interstitially. Different possible coordinations at the metal ion site are discussed. It is suggested that the divalent nickel ion has very likely a fourfold chlorine coordination associated with two neutral water molecules at the first-neighbor NH4+ sites along <100> direction. An abrupt blue shift of about 100-150 cm−1 is observed at 235°K in the positions of the band maxima and is attributed to the anomalous lattice contraction of the host lattice at this temperature.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 68583 |
| Deposited On: | 02 Nov 2011 10:50 |
| Last Modified: | 02 Nov 2011 10:50 |
Repository Staff Only: item control page
