PROBING DIAZONIUM ION CROWN ETHER MOLECULAR-COMPLEXES BY TANDEM MASS-SPECTROMETRY (FAB-MS/MS) ACID-BASE CHEMISTRY WITHIN A CLUSTER

被引：11

作者：

LAALI, K

机构：

[1] Department of Chemistry, Kent State University, Kent, Ohio

来源：

CHEMISCHE BERICHTE | 1990年 / 123卷 / 06期

关键词：

Acid‐base chemistry; Cluster ions; Collisional dissociation; Crown complexation; Diazonium ion; Mass spectrometry;

D O I：

10.1002/cber.19901230637

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1433 / 1435

页数：3

共 17 条

[11] OBSERVATION OF DIAZONIUM ION CROWN ETHER MOLECULAR-COMPLEXES IN THE GAS-PHASE BY FIELD DESORPTION AND FAST ATOM BOMBARDMENT MASS-SPECTROMETRY [J].