Abstract

AZIZ, Muhammad; ANWAR, Muhammad  and  IQBAL, Shazia. Theoretical evaluation of valeraldehyde. S. Afr. j. sci. [online]. 2019, vol.115, n.9-10, pp.1-4. ISSN 1996-7489.  https://doi.org/10.17159/sajs.2019/5666.

The aim of this study was to compute the theoretical (software-based) spectroscopic properties of valeraldehyde as a member of the aldehyde family. The structural, thermochemical, electrical and spectroscopic properties of valeraldehyde were investigated using a quantum calculation approach. The infrared, ultraviolet-visible, Raman, and vibrational self-consistent field calculations and thermochemistry were calculated using the computational software GAMESS (General Atomic and Molecular Electronic Structure System) and the nuclear magnetic resonance predictions were calculated. The calculated energy gap between the lowest unoccupied molecular orbital (LUMO) and the highest occupied molecular orbital (HOMO) was 164.892.eV, which means valeraldehyde is a poor electrical conductor. The band gap is a non-neglected parameter for optical material. Results of the current computational analysis are useful to predict even a complex aldehyde precursor.SIGNIFICANCE: •The computational strategy used successfully here could also be useful for investigation of other aldehyde polymers

Keywords : DFT spectroscopy calculation; pentanal; aldehyde.

        · text in English     · English ( pdf )