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Selected ion flow tube (SIFT) studies of the reactions of H3O+, NO+ and O-2(+center dot) with six volatile phytogenic esters

SYSNO ASEP	0359546
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Selected ion flow tube (SIFT) studies of the reactions of H3O+, NO+ and O-2(+center dot) with six volatile phytogenic esters
Author(s)	Sovová, K. (CZ) Dryahina, Kseniya (UFCH-W)_{RID, ORCID} Španěl, Patrik (UFCH-W)_{RID, ORCID}
Source Title	International Journal of Mass Spectrometry. - : Elsevier - ISSN 1387-3806 Roč. 300, č. 1 (2011), s. 31-38
Number of pages	8 s.
Language	eng - English
Country	NL - Netherlands
Keywords	SIFT-MS ; ion-molecule reactions ; plant esters
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	GA202/09/0800 GA ČR - Czech Science Foundation (CSF)
	GA203/09/0256 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000287789200005
DOI	10.1016/j.ijms.2010.11.021
Annotation	The selected ion flow tube (SIFT) was used to study the reactions of the three SIFT-MS precursor ions H3O+, NO+ and O-2(+center dot) with six phytogenic esters: hexyl acetate, phenethyl acetate, benzyl acetate, methyl salicylate, methyl benzoate and benzyl benzoate. These compounds are emitted into the atmosphere by various species of plants and play a role in communication between individual plants and also amongst different species. Thus, it is necessary to know the rate constants and branching ratios of the different ion products of these reactions for identification and quantification by SIFT-MS. The results of this study show that the reactions of H3O+ with the esters proceed via proton transfer, which is non-dissociative for methyl salicylate, entirely dissociative for benzyl benzoate and partly dissociative for the remaining four esters. All protonated esters readily associate with water molecules with the notable exception of methyl salicylate.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1