Structure–property relation and third-order nonlinear optical studies of two new halogenated chalcones
Articles > Article · 2017
Authors: Huey Chong KWONG, M. S. RAKESH, C. S. Chidan KUMAR, Shivaraj R. MAIDUR, Parutagouda Shankaragouda PATIL, Ching Kheng QUAH, Yip-Foo WIN, Cemal PARLAK, Siddegowda CHANDRAJU
Zeitschrift für Kristallographie - Crystalline Materials, Journal Indexed in SCI Expanded, International, WoS, 2017, vol 233, pp 349-360
Summary
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 standardZ-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 inIand Br···O short contact interactions inIIplay important roles in their packing pattern and NLO properties. The molecules reveal a strong nonlinear refraction (NLR) and nonlinear susceptibilityχ(3)when the donor and acceptor are arranged side-by-side as in compoundI. 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). TheZ-scan results indicate that both compounds would be potential applicants in the development of NLO devices.