Azolylborane adducts. Structural and conformational analysis by x-ray diffraction and NMR. Protic-hydric (CHδ+-δ–HB) and Protic-Fluoride (CHδ+-δ–FB) interactions
✍ Scribed by Padilla-Martińez, Itzia Irene ;Rosalez-Hoz, Maria De Jesús ;Tlahuext, Hugo ;Camacho-Camacho, Carlos ;Ariza-Castolo, Armando ;Contreras, Rosalinda
- Book ID
- 102787837
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1996
- Tongue
- English
- Weight
- 971 KB
- Volume
- 129
- Category
- Article
- ISSN
- 0009-2940
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✦ Synopsis
Azolylborane adducts I Boron-imidazole adducts I Boron-pyridine adducts I Protic-hydric interactions I
Protic-fluoride interactions
The preparation, NMR and X-ray diffraction studies of a series of azolylboron hydrides derived from pyrrole, indole, and carbazole coordinated with tetrahydrofuran, pyridine, and imidazole are reported. The azolyl substituents are very electroattractive leading to a n acidic boron atom which strongly coordinates with the Lewis bases. The stabilization of the -BH2-groups against disproportionation could be explained in terms of the interactions found between the acidic hydrogen atoms of the heterocycles (C-H'+ acceptor) and the hydrides (B-H6donors).