Rotational barrier and structure of aminoborane determined by AB initio calculations
β Scribed by Odd Gropen; Hans M. Seip
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 233 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Ab initio calculations have been used to determine the structural parameters of both the planar and the orthogorial form of H~BNHz. The BN bond hngths were found to be 1.378 A and 1.469 A, respectively. The arrangement about nitrogen is pyramidal in the orthogonal form, The best estimate of the barrier to internal rotation is 33.3 kc&mole.
π SIMILAR VOLUMES
The nature of the rotational barrier in substituted phosphoranes has been investigated by ab initio calculations of P&NH2 using gaussian expansions of Slater orbitals. The conformation with the amino group's lone pair lying in the equatorial plane of the phosphorsne system was favored by 2 1.0 kcall
The heights of the rotational barn-ers of the diselenide bridge in dimethyl diselenide have been calculated at the Hartree-Fock level with the 3-21G basis set. The minimum in the rotational potential energy function occurs at a torsional angle of 85.64". The bam'ers were determined by complete geome