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Mass spectrometry studies on the complexation of several organometallic complexes by α- and β-cyclodextrins

✍ Scribed by R. Bakhtiar; A. E. Kaifer

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
87 KB
Volume
12
Category
Article
ISSN
0951-4198

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✦ Synopsis

The complexation of ferrocene and several ferrocene derivatives with the hosts a-cyclodextrin (a-CD) and b-cyclodextrin (b-CD) was investigated by electrospray mass spectrometry. A 2:1 complex was detected between a-CD and ferrocene while a 1:1 complex was observed with b-CD and this organometallic guest. All the remaining ferrocene derivatives surveyed in this work exhibited mass spectrometry signals corresponding to 1:1 complexes with either host. In contrast to previous electrochemical and proton NMR spectroscopic studies, no evidence was found for ternary or quaternary complexes in these host-guest systems. These results demonstrate for the first time that complexes between cyclodextrins and organometallic compounds are detected in the gas phase.

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