2016
DOI: 10.1016/j.molstruc.2016.01.019
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Spectroscopic (FT–IR and UV–Vis) and theoretical (HF and DFT) investigation of 2-Ethyl-N-[(5-nitrothiophene-2-yl)methylidene]aniline

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Cited by 48 publications
(18 citation statements)
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“…In this study, the theoretically scaled vibrations by HF/6-311++G(d,p) and DFT/B3LYP/6-311++G(d,p) methods at 708, 695, 681, and 568 cm -1 and 696, 686, 676, and 553 cm -1 , respectively, are assigned to ν(SC) stretching vibrations. These band values calculated at the same methods are in good agreement with the corresponding band values; 745 and 732, respectively [34].…”
Section: C=n C-n and C-s Vibrationssupporting
confidence: 79%
See 1 more Smart Citation
“…In this study, the theoretically scaled vibrations by HF/6-311++G(d,p) and DFT/B3LYP/6-311++G(d,p) methods at 708, 695, 681, and 568 cm -1 and 696, 686, 676, and 553 cm -1 , respectively, are assigned to ν(SC) stretching vibrations. These band values calculated at the same methods are in good agreement with the corresponding band values; 745 and 732, respectively [34].…”
Section: C=n C-n and C-s Vibrationssupporting
confidence: 79%
“…The energy gap between the HOMO and LUMO orbitals of the title compound is 10.6068 eV and 5.5728 eV for the HF and B3LYP levels, respectively. As expected, the high values of β correspond to the low HOMO-LUMO gap [34]. Urea is one of the prototypical molecules used for studying the NLO properties of the molecular systems.…”
Section: Nonlinear Optic (Nlo) Propertiessupporting
confidence: 62%
“…As seen in Table III, the energy gaps between the HOMO and LUMO orbitals of the title compound are decreased in the order: B3LYP (4.253 eV) > B3PW91 (4.277 eV) > BPV86 (2.758 eV). As expected, the lower is the HOMO-LUMO energy gap the larger is the β value [67]. Urea is one of the standard molecules used in the study of the nonlinear optical (NLO) properties of molecular systems and is thus frequently used as a threshold value for comparative studies [68].…”
Section: Nonlinear Optical (Nlo) Propertiesmentioning
confidence: 64%
“…The peak at 1679.92 cm -1 is obvious, which is attributed to the C=N vibration of the anthracene ring on the main chain [22]. The peak at 1204.52 cm -1 is the vibrational motion of C-N on the main chain [23]. Figure S1 shows the results of GPC analysis of polymer with THF as the eluent.…”
Section: Results and Discussion Characterization Of Pasmentioning
confidence: 99%