## Abstract ^1^H and ^13^C NMR spectra are reported and assigned for imidazo[1,2β__a__] pyrazine and for __N__β1βmethylβ and __N__β7βmethylβimidazo[1,2β__a__] pyrazinium iodides. The effect of protonation on the chemical shifts of the parent molecule is demonstrated, and through the use of ^13^C an
A multinuclear magnetic resonance study of the tetraphenylarsonium and tetraphenylphosphonium tetraphenylborates in nonaqueous solvents
β Scribed by Farmer, RM; Sasaki, Y; Popov, AI
- Book ID
- 125490837
- Publisher
- Commonwealth Scientific and Industrial Research Organisation Publishing
- Year
- 1983
- Tongue
- English
- Weight
- 348 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0004-9425
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract A multinuclear magnetic resonance (NMR) study of the complexes of aluminum(III) with isothiocyanate ion in waterβacetone mixtures has been completed. At temperatures low enough to slow proton and ligand exchange, separate resonance signals are observed for coordinated and bulk H~2~O (^1
H , =C, ' \* N and 19%g N M R data were obtained for organomercury fuIminates, RHgCNO (R=Me, Ph, CNO). The relatively slow relaxation processes effective for the quadrupolar nitrogen muclei of these compounds allow the detection of -g-l4N scalar coupling constants. This feature is ascribed to the pr