ISSN:
0009-2940
Keywords:
Diazonium ion
;
Crown complexation
;
Cluster ions
;
Collisional dissociation
;
Acid-base chemistry
;
Mass spectrometry
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The molecular complexes (cluster ions) formed between various aromatic diazonium ion salts ArN2⊕BF4⊖ and 18-crown-6 host molecules are studied by FAB mass spectrometry. The nature of the interaction is probed by MS-MS experiments in which the ArNF (crown) 1:1 complexes are mass-selected and subjected to collisionally activated dissociation (CAD), using helium as collision gas. The results suggest that acid-base chemistry (proton and hydride transfer) occurs within the guest -host complex. Precedented mechanistic pathways for ArN2⊖ dediazoniation in the condensed phase are used as guidelines to explain these observations.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19901230637
