Electron crystallography at atomic resolution: The structure of the odd-chain paraffin n-tritriacontane
✍ Scribed by Dorset, Douglas L. ;Zhang, Weiping
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1991
- Tongue
- English
- Weight
- 732 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0741-0581
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✦ Synopsis
The crystal structure of the odd-chain paraffin, n-tritriacontane, nC,,H,,, is determined directly by using low-dose electron microscope images and electron diffraction intensity data from epitaxially grown microcrystals. Phases of the most intense "polyethylene" reflections are determined from triplet structure-invariant relationships often used in X-ray crystallography. Low-dose electron microscopic images provide phases of the low-angle "lamellar" reflections and these can be used with one-dimensional structure-invariant relationships to determine other phases on the OOe reciprocal row. The phase set is sufficient to calculate an electrostatic potential map which is directly interpretable as a structure image a t atomic resolution,