Hybridization, structure and 29Si-H coupling constants in methyl and phenyl derivatives of silane
โ Scribed by A. Rastelli; S.A. Pozzoli
- Book ID
- 103203818
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 444 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0022-2860
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๐ SIMILAR VOLUMES
## Abstract ^29^Si๏ฃฟ^1^H coupling constants across two and three bonds in silatranes and model triethoxysilanes were measured from ^1^H spectra by multiple quantum NMR. There was an increase in the ^29^Si๏ฃฟO๏ฃฟC๏ฃฟH coupling in the equatorial position and a decrease in that in the axial position of the s
Table I. Ternary and quaternary intermetallic molecules that have been characterized via their isotopic patterns. Molecule Appearance energy [eV] Cs21nSbl CsSnSb, CsSnBiSb2 CsSnBi2Sb Cs2Sn2Sb2 [a1 5.6f0.2 5.3 k 0.2 5.0 f 0.3 [a1 [a] Not yet determined.
Ab initio coupled Hartree-Fock perturbation theory (CHFPT) using large, flexible bases of gaugeless Gaussian orbitals is used to calculate the %i chemical shielding tensors, o,,, of SiH4, Si2H6, SiZH4 and Hr.Si0.'Si2H4 is deshielded with respect to SiH, by an average of 134 ppm and the range of prin