Muthu, K. and Bhagavannarayana, G. and Meenakashisundaram, S. P. and Mojumdar , S. C. (2012) Effect of alkali metal doping on the properties and crystalline perfection of bis(thiourea)zinc(II) chloride crystals. Journal of Thermal Analysis and Calorimetry, 108 (3). 927-932. ISSN 1388-6150
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Abstract
The influence of sodium doping on the properties of bis(thiourea)zinc(II) chloride crystals has been described. The reduction in the intensity observed in powder X-ray diffraction of doped specimen and slight shifts in vibrational frequencies confirm the lattice stress as a result of doping. The incorporation of Na(I) into the crystal lattice was confirmed by energy dispersive X-ray spectroscopy. Surface morphological changes due to doping of the alkali metal are observed by scanning electron microscopy. The TG-DTA studies reveal the purity of the material and no decomposition is observed up to the melting point. The high resolution X-ray diffraction studies reveal that the crystalline quality is improved considerably by doping with alkali metal. High transmittance is observed and cut off lambda is similar to 270 nm.
| Item Type: | Article |
|---|---|
| Subjects: | Chemistry > Analytical Chemistry Physical Chemistry/Chemical Physics Thermodynamics |
| Divisions: | UNSPECIFIED |
| Depositing User: | Users 27 not found. |
| Date Deposited: | 14 Feb 2020 07:38 |
| Last Modified: | 14 Feb 2020 07:38 |
| URI: | http://npl.csircentral.net/id/eprint/3638 |
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