Measurements of pressure-induced infrared frequency shifts and a theory of liquids based on hindered molecular vibration

Simple item page
dc.contributor.advisorPrengle, Herman W., Jr.
dc.contributor.committeeMemberHuang, Chen-Jung
dc.contributor.committeeMemberHoneywell, Wallace I.
dc.contributor.committeeMemberFinch, Robert D.
dc.creatorFang, Cheng-Shen
dc.date.accessioned2022-11-01T21:57:11Z
dc.date.available2022-11-01T21:57:11Z
dc.date.copyright1968-06
dc.date.issued1968
dc.description.abstractA new approach to the liquid state has been attempted. The stretching vibrational frequency of molecules changes when molecules are condensed from the gaseous phase to the liquid phase, or compressed to a higher density in the same phase. The frequency shift of the molecule indicates the intermolecular interactions between the molecule and all surrounding molecules within the effective range of the intermolecular forces. A high resolution and precision infrared spectrophotometer and a high pressure infrared cell were designed, constructed and calibrated for static measurements of frequency shifts at various pressures. The transmittance of each absorption band was measured at the static condition of the monochromator, and fitted to a simplified Lorentz equation from which the minimum of the band was determined. A digital computer was used in the processing of data. With this specially developed technique, the precision of frequency measured was increased to one hundredth of a wave number. A relationship between the frequency shift and the self-consistent potential field in which the molecule vibrates was derived. Also equations were derived to calculate thermodynamic properties from the frequency shift. [...]
dc.description.departmentChemical and Biomolecular Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13651023
dc.identifier.urihttps://hdl.handle.net/10657/12545
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleMeasurements of pressure-induced infrared frequency shifts and a theory of liquids based on hindered molecular vibration
dc.type.dcmiText
dc.type.genreThesis
dcterms.accessRightsThe full text of this item is not available at this time because it contains documents that are presumed to be under copyright and are accessible only to users who have an active CougarNet ID. This item will continue to be made available through interlibrary loan.
thesis.degree.collegeCollege of Engineering
thesis.degree.departmentChemical Engineering, Department of
thesis.degree.disciplineChemical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

Files

Original bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Fang_1968_13651023.pdf
Size:
15.56 MB
Format:
Adobe Portable Document Format
Download

Collections

Legacy Theses and Dissertations (1940-2009)