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  • P-ISSN 2233-4203
  • E-ISSN 2093-8950

The Stabilizing Role of Cyclodextrins on Keggin Phosphotungstic Acid by Complexation Unveiled by Electrospray Mass Spectrometry

Mass Spectrometry Letters / Mass Spectrometry Letters, (P)2233-4203; (E)2093-8950
2015, v.6 no.1, pp.13-16
https://doi.org/10.5478/MSL.2015.6.1.13
Fan YanXuan (Beijing Institute of Technology)
Zhang Yan (Beijing Institute of Technology)
Jia QiaoDi (Beijing Institute of Technology)
Cao Jie (Beijing Institute of Technology)
Wu WenJie (Tianjin University of Science and Technology)
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Abstract

This study demonstrated the stabilizing role of a cyclodextrin on Keggin [PW12O40]3- via hydrogen bonding complexationunveiled by ESI-MS. The distinctive fragmentation pathways of the {PW12}/γ-CD complexes from that of discrete[PW12O40]3- showed that the so-called “weak” non-covalent interactions can effectively change the dissociation chemistry ofPOM in the gas phase. The influence of different types of solvents and organic additives such as γ-CD on the stability of Keggin[PW12O40]3- was also addressed firstly by ESI-MS.

keywords
POM/CD non-covalent complexes, Electrospray ionization mass spectrometry, Stability.


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Submission Date
2014-10-29
Revised Date
2015-01-09
Accepted Date
2015-01-09
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