Calculation of macromolecular force constants
β Scribed by B. F. Putnam; L. L. Van Zandt
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 711 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0192-8651
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β¦ Synopsis
Abstract
Force constant refinement may be carried under a system of constraints imposed on well characterized modes as the refinement proceeds. Resulting stability permits the accurate calculation of many independent macromolecular force constants. A useful formalism for this technique is developed. Prediction of initially poorly characterized modes can emerge from this stability. A brief discussion of currently used refinement schemes has been included. We show that the standard leastβsquares procedure is a special case of our present more general method, the former being useful when the molecule is not too large.
π SIMILAR VOLUMES
This represents the fist attempt to determine it force field for ferrocrne which does not either assume the cyclepentidiene rings are free or that the rings can be approximated to point masses.
The scaling procedure is applied to configuration-interaction wavefunctions of LiH at p = qR = 2.75, 3.00, and 3.25. The force curve calculated from the scaled wavefunctions leads to improved values for the equilibrium internuclear separation and force constants.