dc.creatorHase, Y
dc.date2010-Jan
dc.date2015-11-27T13:18:36Z
dc.date2015-11-27T13:18:36Z
dc.date.accessioned2018-03-29T01:12:16Z
dc.date.available2018-03-29T01:12:16Z
dc.identifierSpectrochimica Acta. Part A, Molecular And Biomolecular Spectroscopy. v. 75, n. 1, p. 461-5, 2010-Jan.
dc.identifier1873-3557
dc.identifier10.1016/j.saa.2009.11.010
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/19955013
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199213
dc.identifier19955013
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299446
dc.descriptionAn extensive HF, MP2, B3LYP and CCSD study of the molecular structure, force field and normal vibrations has been carried out for the hydrogen cyanide compound with boron tribromide. Most of the calculations agree that the HCN-BBr(3) molecule belongs to C(3v) point group and has a N-B length of 1.55-1.70 A and a N-B-Br angle of 103-105 degrees. These calculations also have estimated the missing low-wavenumber fundamentals in the 190 (nu(5)), 150 (nu(9)) and 105 cm(-1) (nu(10)) regions, instead of the supposed fundamentals at 207, 188 and 150 cm(-1), respectively, based on the combination bands. The quantum chemical force constants, by the B3LYP/6-31G and CCSD/3-21G calculations, have been adjusted by the scaling factors to reproduce the fundamentals in the literature [3] to include the bands below 200 cm(-1) proposed in this study. Normal coordinate analysis using the scaled force constants has been performed to interpret the molecular vibrations of four isotopic molecules, HCN-(10)BBr(3), HCN-(11)BBr(3), DCN-(10)BBr(3) and DCN-(11)BBr(3).
dc.description75
dc.description461-5
dc.languageeng
dc.relationSpectrochimica Acta. Part A, Molecular And Biomolecular Spectroscopy
dc.relationSpectrochim Acta A Mol Biomol Spectrosc
dc.rightsfechado
dc.rightsCopyright 2009 Elsevier B.V. All rights reserved.
dc.sourcePubMed
dc.subjectBoron Compounds
dc.subjectBromides
dc.subjectChemical Warfare Agents
dc.subjectComputer Simulation
dc.subjectHydrogen Cyanide
dc.subjectModels, Theoretical
dc.subjectSpectrum Analysis
dc.subjectVibration
dc.titleTheoretical Study Of The Molecular Force Field And Vibration Analysis Of The Hydrogen Cyanide Addition Compound With Boron Tribromide.
dc.typeArtículos de revistas


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