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Electrospray ionization mass spectrometry of tribenzyltin substituted‐phenoxyacetate compounds
Author(s) -
Wei Junhua,
Miller Jack Martin
Publication year - 2001
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.182
Subject(s) - chemistry , adduct , electrospray ionization , protonation , mass spectrometry , tandem mass spectrometry , aqueous solution , medicinal chemistry , acetonitrile , ion , electrospray , hydrolysis , stereochemistry , analytical chemistry (journal) , chromatography , organic chemistry
Hydrolysis products of organotin compounds RC 6 H 4 OCH 2 COOSn(CH 2 ph) 3 (R = o ‐NO 2 , 1 ; m ‐NO 2 , 2 ; p ‐NO 2 , 3 ; o ‐CH 3 , 4 ; o ‐OCH 3 , 5 ; o ‐Cl, 6 ; o ‐Br, 7 ) and RC 6 H 3 OCH 2 COOSn(CH 2 ph) 3 (R = o , o ‐2CH 3 , 8 , o ‐OCH 3 , p ‐CHO, 9 ; o , p ‐2Cl, 10 ), produced in aqueous acetonitrile solution, have been investigated by electrospray mass spectrometry (MS) and MS n techniques. The complexes [Y 2 SnXR′] − , [Y 3 SnXR′] − , [Y 3 SnX 2 R′] − , [Y 2 SnX 3 R′] − , and fragment ions of [Y 3 SnR′] − , plus abundant RC 6 H 4 (or RC 6 H 3 )OCH 2 COO − and RC 6 H 4 (or RC 6 H 3 )O − ions are observed in negative mode, whereas the protonated molecular ion [M + H] + , complexes [Y 2 SnXR′] + , [Y 3 SnXR′] + , [Y 2 SnX 2 R′] + , [Y 3 SnX 2 R′] + , [Y 2 SnX 3 R′] + , [Y 3 SnX 3 R′] + , as well as [YSnXR′] + , [M − CH 2 ph] + , XSn + , (phCH 2 ) 3 Sn + , phCH 2 Sn + (Y = CH 2 ph, X = OOCCH 2 OC 6 H 4 R(or C 6 H 3 R)) are detected in the positive mode. Water adduct ions are seen in both modes. The assignments are facilitated by agreement between observed and calculated isotopic patterns and tandem mass spectrometry studies. Copyright © 2001 John Wiley & Sons, Ltd.