## Gas phase basicity (GB) and proton affinity (PA) determinations by the thermokinetic method have been reevaluated in the light of the new basicity scale. It is found that the thermokinetic method provides GB values with a precision better than AE3 kJ/mol. The following GB values are obtained: i
The gas-phase basicities and proton affinities of amino acids and peptides
โ Scribed by Alex. G. Harrison
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 165 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0277-7037
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
**Ion cyclotron resonance measurements on Dโlabeled furan** revealed that in the prototype electrophilic reactionsโ__i.e.__ protonationโfuran behaves in the gas phase as a typical arene and not as enol ether.
A series of oligopeptides containing aromatic and basic residues were synthesized and their interactions with double-stranded nucleic acids studied by proton and phosphorus NMR, viscometry, and DNA melting temperature (T m ). The oligopeptides prepared contain two aromatic amino acids (phenylalanine
Small peptides ions consisting of a comparable number of amino acid residues but varying in composition and sequence were allowed to undergo gas-phase deprotonation reactions. These multiply protonated ions were generated by electrospray ionization and analyzed in a Fourier transform ion cyclotron r