Global Journal of Science Frontier Research, H: Environment & Earth Science, Volume 23 Issue 1

© 2023. Akhtam Amonov. This research/review article is distributed under the terms of the Attribution-NonCommercial- NoDerivatives 4.0 International (CC BY-NC-ND 4.0). You must give appropriate credit to authors and reference this article if parts of the article are reproduced in any manner. Applicable licensing terms are at https://creativecommons.org/licenses/by-nc- nd/4.0/. Global Journal of Science Frontier Research: H Environment & Earth Science Volume 23 Issue 1 Version 1.0 Year 2023 Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Online ISSN: 2249-4626 & Print ISSN: 0975-5896 Investigation of Formaldehyde+Hydrogen Fluoride Complex in Gas Phase by the Help of Ftir Spectroscopy and Computational Methods By Akhtam Amonov Samarkand State University Abstract- High-resolution infrared absorption spectra of the H2CO•••HF complex and its monomers are recorded in a gas phase in C=O and C−H regions using Bruker HR 125 spectrometer recorded at 0.05 cm-1 resolution. After complex formation about the HF stretching band complicated shapes are not observed due to weak interaction couplings between C=O and C−H stretching of the H2CO•••HF complex. Also, quantum chemical calculations are performed in mp2//6311++g(3df, 3pd) approximation, and energetic, geometrical, and harmonic spectral parameters have been calculated. Keywords: absorption spectra, hydrogen bond, hydrogen fluoride, formaldehyde. GJSFR-H Classification: InvestigationofFormaldehyde+HydrogenFluorideComplexinGasPhasebytheHelpofFtirSpectroscopyandComputationalMethods Strictly as per the compliance and regulations of: DDC Code: 543.56 LCC Code: QD96