Citation
Medlin, William Virgil (1935) Interatomic Distances from X-Ray Power Photographs. The Crystal Structure of Mercuric Tellurate. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/dsry-rp97. https://resolver.caltech.edu/CaltechTHESIS:10162024-164410269
Abstract
The Fourier series is discussed as a method for obtaining directly the arrangement of atoms within a crystal, and difficulties in this method are pointed out. A recently developed treatment of x-ray powder photographs giving interatomic distances is tested on various substances and found to be satisfactory when applied to compounds c011taining relatively few heavy atoms- in reasonably simple arrangement. Crystalline diphyenyliodonium iodide is shown to have an ionic bond between the iodine atoms. The sulfur bond angle 1ti orpiment is measured, and great similarity is found to exist between the structures of orpiment and realgar. The arsenic-sulfur distance in sodium sulfantimonate is found to be smaller than that predicted by the table of radii or Pauling and Huggins. A short discussion is given of the difficulties encountered in applying this method.
On the basis of an incomplete investigation into the crystal structure or mercuric tellurate, Hg3TeO6, the TeO6 group is shown to exist as a unit here as in telluric acid, with a shape that is nearly regularly octahedral. The unit cell size is found, and a determination of the space group is made.
Item Type: | Thesis (Dissertation (Ph.D.)) |
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Subject Keywords: | (Chemistry) |
Degree Grantor: | California Institute of Technology |
Division: | Chemistry and Chemical Engineering |
Major Option: | Chemistry |
Thesis Availability: | Public (worldwide access) |
Research Advisor(s): |
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Thesis Committee: |
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Defense Date: | 1 January 1935 |
Record Number: | CaltechTHESIS:10162024-164410269 |
Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:10162024-164410269 |
DOI: | 10.7907/dsry-rp97 |
Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
ID Code: | 16797 |
Collection: | CaltechTHESIS |
Deposited By: | Benjamin Perez |
Deposited On: | 17 Oct 2024 19:00 |
Last Modified: | 17 Oct 2024 19:14 |
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