2015
DOI: 10.1007/s00706-015-1567-8
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Vibrational spectra analysis, NBO, HOMO–LUMO, and nonlinear optical behavior studies on 3-(3,4-dimethoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one

Abstract: A combined experimental and theoretical study on molecular structure, vibrational spectra, HOMO-LUMO analysis, and hyperpolarizability of organic nonlinear optical crystal 3-(3,4-dimethoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one is reported. Vibrational wavenumbers with Raman intensities and infrared absorption intensities have been calculated in the ground state by the density functional theory method using 6-31G(d,p) basis set and Becke's three-parameter hybrid functional (B3LYP). Finally, the calculation res… Show more

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Cited by 10 publications
(4 citation statements)
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“…Also, MEP explains the relationship between the structure and reactivity in molecule. 54 The MEP plots at G and G–CdO surfaces are represented in Fig. 4E–G by a color range from red to blue color.…”
Section: Resultsmentioning
confidence: 99%
“…Also, MEP explains the relationship between the structure and reactivity in molecule. 54 The MEP plots at G and G–CdO surfaces are represented in Fig. 4E–G by a color range from red to blue color.…”
Section: Resultsmentioning
confidence: 99%
“…The C-N stretching modes have generally appeared in the region of the IR spectra containing the mixed vibrational modes. 19,27,39 Recently, the νNC stretching modes were observed at 1594, 1341, 942, and 875 cm −1 by FTIR spectroscopy and at 1602, 1345, and 937 cm −1 by FT-Raman spectroscopy, also calculated 27 at 1596, 1343, 960, and 868 cm −1 by the B3LYP level. In this work, the νN13-C stretching modes for CI have been calculated by the B3LYP level at 1453, 1373, 1146, 1105, and 917 cm −1 , whereas the νN 26 -C vibrations have been simulated at 1157, 1146, 1133, 1116, 1098, and 877 cm −1 (as not mixed).…”
Section: Vibrational Analysismentioning
confidence: 98%
“…The computed bond length of N-H is found to be 1.01 Å and in good agreement with those of structurally similar systems whose crystal structures are elucidated. 24 The bond angles obtained for O10-C5-C6 are 124.64°( opt) and 124.83°(exp); C3-C2-O7 is 123.79°(opt) 124.32°(exp). The optimized geometry shows that -OCH3 groups substituted at the para position of phenyl ring are coplanar, which predicts maximum conjugation of the molecule with donor and acceptor groups.…”
Section: Computational Detailsmentioning
confidence: 96%
“…22 We can calculate close contact intermolecular interaction distances d Here the r i VdW and r e VdW are the van der Waals radius of d i and d e atoms, respectively. 24 The Hirshfeld surfaces mapped over d norm (−0.5663 to 1.2490 Å), di (0.7848 to 2.3888 Å), de (0.7859 to 2.4665 Å), shape index (−1.0000 to 1.0000 Å), and curvedness (−4.000 to 4.000 Å), and fragment patch is shown in Figs. 4a-4d.…”
Section: Geometrymentioning
confidence: 99%