X-ray Investigations of Molecular Overcrowding

Ferguson, George (1961) X-ray Investigations of Molecular Overcrowding. PhD thesis, University of Glasgow.

Abstract

The crystal structures of a series of substituted benzoic acids and of a camphane derivative have been examined by X-ray diffraction methods. o-Chlorobenzoic acid crystallises in the monoclinic system, space group C2/c, with eight molecules in the unit cell. The crystal structure, which consists of centrosymmetrical hydrogen-bonded dimers, was elucidated initially in projection by Patterson methods. The final atomic coordinates were obtained from a three-dimensional least-squares refinement involving 1034 observed structure amplitudes. The hydrogen atoms bonded to the benzene carbon atoms have been clearly revealed in difference syntheses but the hydroxyl hydrogen atom proved more difficult to locate. The strain which would be imposed on a planar ideal molecule is relieved by the carboxyl group rotating 13.7

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Keywords: Analytical chemistry, Molecular chemistry
• Date of Award: 1961
• Depositing User: Enlighten Team
• Unique ID: glathesis:1961-79408
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 05 Mar 2020 10:03
• Last Modified: 05 Mar 2020 10:03
• URI: https://theses.gla.ac.uk/id/eprint/79408