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Low Energy Conformations and Gas-Phase Acidity and Basicity of Pyrrolysine

✍ Scribed by Meng, Lingbiao; Wang, Zhuo; Zhang, Jicheng; Zhou, Minjie; Wu, Weidong

Book ID
125834189
Publisher
American Chemical Society
Year
2014
Tongue
English
Weight
604 KB
Volume
118
Category
Article
ISSN
1089-5639

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Gas-phase basicity of methionine
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✍ Sylvain Desaphy; Christian Malosse; Guy Bouchoux πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 448 KB

## Abstract Proton affinity and protonation entropy of methionine (Met) were determined by the extended kinetic method from ESI‐Q‐TOF tandem mass spectrometry experiments. The values, __PA__(Met) = 937.5 Β± 2.9 kJ mol^βˆ’1^ and Ξ”~p~__S__Β°(Met) = βˆ’ 22 Β± 5 J mol^βˆ’1^ K^βˆ’1^, lead to gas‐phase basicity __G