One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 497-23-4, Name is Furan-2(5H)-one, formurla is C4H4O2. In a document, author is Halim, Shimaa Abdel, introducing its new discovery. Computed Properties of C4H4O2.
Synthesis, DFT computational insights on structural, optical, photoelectrical characterizations and spectroscopic parameters of the novel (2E)-3-(4-methoxy-5-oxo-5H-furo[3, 2-g]chromen-6-yl)acrylonitrile(MOFCA)
Reaction of 6-formylvisnagin (1) with cyanoacetic acid in dry pyridine afforded the novel (2E)-3-(4methoxy-5-oxo-5H-furo[3,2-g]chromen-6-yl)acrylonitrile (2, MOFCA). The chemical structure of the prepared compound was determined by the elemental analysis and spectral data. The individual emulation characteristics of compound (2, MOFCA), were accomplished by DFT, and TD-DFT/B3LYP, at 6-311 ++ G (d, p). The computational results detect the most stable structure of MOFCA, depending on the positions of the methoxy (O-CH 3) group, within change in dihedral angle. FT-IR spectroscopy was applied for the vibrational spectral analysis. Using frontier molecular orbital (FMO) analysis, various spectroscopic and quantum chemical parameters are discussed. The absorption energies, oscillator strength, and electronic transitions of compound (2, MOFCA), have been derived at TD-DFT/CAM-B3LYP/6-311++ G (d,p) computations utilizing a PCM and measured in different polar and non-polar solvents experimentally in UV-Vis spectra. The output of the computation shows accurate agreement between theoretical spectra and practical spectra for the title compound. NLO analysis was computed at the identical plane of theory which are, alpha; Delta alpha, and first-order , the hyper-Rayleigh scattering (beta HRS) and the depolarization ratio (DR), were shown promising optical properties. The plots of natural bonding orbital (NBO), thermochemical parameters and the molecular electrostatic potential surfaces (MEPS) have been computed. All the computations in the gas phase have been completed. (C) 2020 Elsevier B.V. All rights reserved.
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Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem