. Author manuscript; available in PMC: 2014 Apr 1.

Published in final edited form as: J Am Soc Mass Spectrom. 2013 Jan 24;24(4):469–480. doi: 10.1007/s13361-012-0543-3

Table 5.

Products and their branching ratios for the reaction of the 2-pyridyl cation in 100% THF solution, in 100% d₈-THF solution, and in the gas phase [23]. The m/z values and the branching ratios of the fragment ions formed upon CAD of the adduct of the 2-pyridyl cation with THF (or d₈-THF) formed in solution are also listed.

	Reaction products and their branching ratios		MS² fragments ions and their branching ratios

100% THF solution	Adduct (m/z 150)	100%	Adduct – C₄H₆ (m/z 96)	60%
			Adduct – C₃H₆ (m/z 108)	30%
			Adduct – C₅H₅ON (m/z 55)	8%
			Adduct – C₄H₆O (m/z 80)	2%

100% d₈- THF solution	Adduct (m/z 158)	100%	Adduct – C₄D₆ (m/z 98)	50%
			Adduct – C₃D₆ (m/z 110)	36%
			Adduct – C₅H₄DON (m/z 62)	10%
			Adduct – C₄D₆O (m/z 82)	4%

Gas phase	Adduct – C₄H₆ (m/z 96)	62%
	Adduct – C₃H₆ (m/z 108)	34%
	Adduct – C₂H₄O (m/z 106)	3%
	Adduct – C₄H₆O (m/z 80)	1%
	Efficiency = 78%