Novel C H•••O hydrogen-bonded supramolecular complexes of 18-crown-6 with 1-alkylpyridinium iodide and its amino derivatives: Third-order nonlinear optical properties and Hirshfeld surface analysis

2021 ◽  
pp. 132310
Author(s):  
C. Balakrishnan ◽  
G. Vinitha ◽  
SP. Meenakshisundaram
Keyword(s):  
Optical Properties ◽  
Surface Analysis ◽  
Nonlinear Optical ◽  
Hirshfeld Surface ◽  
Nonlinear Optical Properties ◽  
Hirshfeld Surface Analysis ◽  
Supramolecular Complexes ◽  
Third Order ◽  
Amino Derivatives ◽  
Hydrogen Bonded

Third-order nonlinear optical properties of three chlorinated thienyl chalcones derivatives: synthesis, structural determination and Hirshfeld surface analysis

2019 ◽  
Vol 234 (10) ◽  
pp. 685-696 ◽  
Author(s):  
Weng Zhun Ng ◽  
Qin Ai Wong ◽  
Tze Shyang Chia ◽  
C. S. Chidan Kumar ◽  
Huey Chong Kwong ◽  
...  
Keyword(s):  
Optical Properties ◽  
Surface Analysis ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Hirshfeld Surface ◽  
Nonlinear Optical Properties ◽  
Hirshfeld Surface Analysis ◽  
Nonlinear Susceptibility ◽  
Third Order ◽  
Chalcone Derivatives

Abstract Three chlorinated theinyl chalcone derivatives, namely (E)-1-(5-chlorothiophen-2-yl)-3-(4-(methylthio)phenyl)prop-2-en-1-one (I), (E)-1-(5-chlorothiophen-2-yl)-3-(4-(dimethylamino)phenyl)prop-2-en-1-one (II) and (E)-1-(5-chlorothiophen-2-yl)-3-(2,3-dihydrobenzofuran-5-yl)prop-2-en-1-one (III), were synthesized and their crystal structures were determined by single-crystal X-ray diffraction analysis. Compounds I, II and III crystallize in the monoclinic space groups P 21/c (centrosymmetric), P 21/n (centrosymmetric) and Pc (non-centrosymmetric), respectively. In all three compounds, the molecules are in a relatively planar conformation and adopt a trans configuration with respect to the C=C double bond. The crystal packings are stabilized by weak hydrogen-bonds, π · · · π, C–H · · · π and C–Cl · · · π interactions. The intermolecular contacts and lattice energies were further analyzed by Hirshfeld surface analysis. The third-order nonlinear optical properties of these chalcone derivatives were investigated using the single beam Z-scan technique with a 5 mW continuous wave diode laser operating at 635 nm, where compound I showed the highest potential for optical application with its exclusive nonlinear refractive index and nonlinear susceptibility.

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