Structure-property relation and third-order nonlinear optical studies of two new halogenated chalcones

Kwong, H. C. and Rakesh Sharma, M. S. and Chidan Kumar, C. S. and Maidur, S. R. and Patil, P. S. and Quah, C. K. and Win, Y. F. and Parlak, C. and Chandraju, S. (2018) Structure-property relation and third-order nonlinear optical studies of two new halogenated chalcones. Zeitschrift fur Kristallographie - Crystalline Materials, 233 (5). pp. 349-360.

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Abstract

In the present work, the crystal structure and third-order nonlinear optical (NLO) properties of two novel chalcone derivatives namely (E)-3-(4-bromo-2-fluorophenyl)-1-(3,4-dimethoxyphenyl)prop-2-en-1-one (I) and (E)-3-(4-bromophenyl)-1-(3,4-dimethoxyphenyl)prop-2-en-1-one (II) are investigated by analyzing the packing pattern, intermolecular interaction, Hirshfeld surface analysis and standard Z-scan technique with continuous wave laser at 532 nm. Both compounds are donor-acceptor-acceptor (D-A-A) type intramolecular charge transferring molecule which crystallized in centrosymmetric space group. The existence of C-H⋯O hydrogen bonds in I and Br⋯O short contact interactions in II play important roles in their packing pattern and NLO properties. The molecules reveal a strong nonlinear refraction (NLR) and nonlinear susceptibility χ(3) when the donor and acceptor are arranged side-by-side as in compound I. And as the donor and acceptor are aligned on a head-to-head alignment, the molecules divulge a strong third-order nonlinear absorption (NLA) and limiting threshold (LT). The Z-scan results indicate that both compounds would be potential applicants in the development of NLO devices. © 2018 Walter de Gruyter GmbH, Berlin/Boston.

Item Type: Article
Subjects: C Chemical Science > Chemistry
Divisions: PG Centre Mandya > Chemistry
Depositing User: manjula User
Date Deposited: 08 Jan 2021 07:53
Last Modified: 08 Jan 2021 07:53
URI: http://eprints.uni-mysore.ac.in/id/eprint/15360

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