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The crystal structure of Feist's acid

Petersen, Donald R. (1955) The crystal structure of Feist's acid. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-01202004-095607

Abstract

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The crystal structure of Feist's acid, 1-methylenecyclopropane-trans-2,3-dicarboxylic acid, has been examined. The substance crystallizes in the triclinic system with space group [...]. Two enantiomorphous molecules of formula [...] are in the unit cell; the direct-cell constants are [...] and [...]. There is good cleavage at the face (010), and this is also the twinning plane.

The intensity data from equi-inclination Weissenberg photographs about each crystal axis were utilized in selecting and then refining a trial structure. Punched-card computing techniques were used to carry out least-squares refinements of atomic positions; two Fourier summations aided in final refinement. All refining work was based on full three-dimensional data.

Hydrogen bonds bind individual molecules into chains which extend in the [...] direction through the crystal. The methylene groups extended in the [...] direction form cogs on the chains, and two chains related by centers of symmetry are intermeshed closely.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Major Option:Chemistry
Thesis Committee:
  • Sturdivant, J.H. (chair)
Defense Date:1 January 1955
Record Number:etd-01202004-095607
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-01202004-095607
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:246
Collection:CaltechTHESES
Deposited By: Imported from ETD-db
Deposited On:22 Jan 2004
Last Modified:25 Dec 2012 14:58

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