CORRELATION OF CHEMICAL SHIFT AND SPIN COUPLING VALUES IN THE B(11) N. M. R. SPECTRA OF BORON COMPOUNDS.
Abstract
Enough data have now been accumulated and empirically correlated that fairly accurate predictions may be made as to the chemical shift values of the boron-11 nucleus and boron-hydrogen spin-coupling values of triligand and tetraligand boron compounds. Boron-fluorine spin coupling is discussed. Triligand and tetraligand boron compounds differ, in several cases, in the direction of chemical shift change upon substitution of hydrogen by another element; structural identification is thus allowed. B-H spin coupling in the carboranes and boron hydrides is discussed. Where practicable B(11)-H, C(13)-H, and B(11)-F, C(13)-F spin coupling values are compared. Delta and J values of mixed boron trihalides are given as are the values of BH3CO and BH3PF3. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1964
- Accession Number
- AD0603782
Entities
People
- John R. Spielman
- Kenneth M. Harmon
- Robert E. Williams