Sudharsanam, Ramanathan ; Chandrasekaran, Srinivasan ; Das, Puspendu Kumar (2003) Oxygen bridged nitroanilines for quadratic nonlinear optics Journal of Molecular Structure, 645 (1). pp. 51-59. ISSN 0022-2860
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00222...
Related URL: http://dx.doi.org/10.1016/S0022-2860(02)00538-0
Abstract
Several nitro aromatic compounds bridged by an oxygen atom have been synthesized and their linear and nonlinear optical properties have been investigated. In one of the compounds (1), a powder SHG efficiency of 6.2 times of urea was observed while its absorption lies in the UV region. The highest molecular hyperpolarizability β, measured was 230×10-30 for a compound (8f) with increased conjugation. Thermal stability of these compounds has been checked using differential scanning calorimetry and the decomposition temperature (Td) was found to be high and lying between 266-298 °C. These molecules have potential importance as thermally stable, visible-transparent second order NLO materials.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Nitro Aromatic Compounds; Azo Compounds; Ether Linkage; Nonlinear Optics; Second Harmonic Generation |
| ID Code: | 10076 |
| Deposited On: | 02 Nov 2010 09:53 |
| Last Modified: | 10 Feb 2011 09:45 |
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