Singh, Anil K. and Kishan, Ram and Vijayan, N. and Balachandran, V. and Singh, Tarun and Tiwari, Hemandra K and Singh, Brajendra K and Rathi, Brijesh
(2013)
Entry of chiral phthalimides with significant second order nonlinear optical and piezoelectric properties.
RSC Advances , 3 (34).
pp. 14750-14756.
ISSN 2046-2069
Abstract
Three new chiral phthalimides have been synthesized and characterized. Phthalimides (1-3) possess an acentric structure as revealed by structural investigation. Compounds 1 and 2 crystallize in an orthorhombic system with the space group P2(1)2(1)2(1), however the monoclinic system with the chiral space group P2(1) is observed for 3. The presence of C-H center dot center dot center dot O hydrogen bonds in 1-3 facilitates the construction of several supramolecular structures. Helical structural motifs are also observed. The maximum value of hyperpolarizability (beta), 159.9446 x 10(-30) esu calculated for compound 3 is several times greater than that of urea. On the other hand 1 and 2 have hyperpolarizabilities of 10.8063 x 10(-30) and 121.9519 x 10(-30) esu, respectively. The polycrystalline samples of 1-3 were assessed for a second-harmonic generation response, which was found to be 8.8, 10.2 and 9.7 mV respectively. Further, compounds 1-3 showed d(33) values of 0.93, 1.97 and 1.88 pC N-1 respectively. The present investigation demonstrates chiral phthalimides as effective contenders for nonlinear optical and piezoelectric properties.
| Item Type: |
Article
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| Additional Information: |
copyright for this article belongs to M/s Royal Society of Chemistry |
| Subjects: |
Chemistry |
| Divisions: |
UNSPECIFIED |
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| Date Deposited: |
19 Aug 2026 09:47 |
| Last Modified: |
19 Aug 2026 09:47 |
| URI: |
https://npl.csircentral.net/id/eprint/3235 |
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