Gas-phase metal ion (Li+, Na+, Cu+) affinities of glycine and alanine
โ Scribed by T Marino; N Russo; M Toscano
- Book ID
- 108405239
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 257 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0162-0134
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๐ SIMILAR VOLUMES
The relative metal ion (Ni' and Co') affinities of 14 alkanenitriles, alkenenitriles and benzonitrile were estimated using Cooks' kinetic method in a fast atom bombardment mass spectrometer. The results are compared with proton affinities, affinities for other metal ions, two-ligand dissociation ent
The gas-phase reactions of the nitrosonium ion, NO+ with the amino acids glycine, alanine and valine and their N-methyl derivatives were investigated under chemical ionization mass spectrometric (CIMS) conditions. Two products were observed in all cases: the formation of the iminium ion and the form
The energies of protonation and Na' cationization of glycine (GLY) and its (GLY -H + Na) salt in the gas phase were calculated using ab initio calculations. The proton affinity of GLY, valued at the MP2/6-31G\*//3-21G level, is 937 kJ mol-'. The amino function is confirmed to be the most favourable