The tendency of C-0 bond lengths to change as a function of the torsional angles at an acetal carbon has been included in a new version of the molecular mechanics program ~~2 ( 8 2 ) , based on the observed behavior of molecules of this class as indicated by ab initio calculations and experimental s
Graphite: A molecular mechanics treatment
✍ Scribed by Joseph T. Sprague; Norman L. Allinger
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 360 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0192-8651
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Graphite is the limiting case of an infinite aromatic hydrocarbon, and as such is an important benchmark in force‐field calculations. Using experimentally determined physical properties for graphite, a force‐field parameter set was developed for molecular mechanics calculations with unsaturated hydrocarbons and is described and discussed.
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The self-consistent Madelung potential SCMP approach for calculating molecular wave functions for a subunit embedded in a symmetrical environment constituted by the copies of the subunit is implemented with semiempirical NDDO model Hamiltonians and supplemented with empirically parameterized dispers
The use of nonquadratically convergent minimisstion procedures for empirical fcrce-field calculations cnn give rise to misleading dejcriptions of the geometry and symmetry of molecules as well as overestimating the steric energy to some estent.
## Abstract A protocol is described for the treatment of molecular polarization in force field calculations. The resulting model is consistent in that both inter‐ and intramolecular polarization are handled within a single scheme. An analytical formula for removing intramolecular polarization from