Gated Proton Transfer Reactions at Low Temperatures in D2O
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Abstract

Proton transfer reactions were studied using 2-nitrobenzaldehyde (NBA), a photoacid, as a
proton donor and ammonium acetate as a proton acceptor in D2O. The reactions were performed
at temperatures ranging from 20K to 200K and rapid scan FTIR was used to observe the
reaction progression. At temperatures below 150K, a ketene intermediate in the photochemistry
reaction of NBA was observed. Between 170K and 200K we were able to observe a proton
transfer occur at a time scale over half an hour. Rates were obtained for the protonation of
ammonium acetate at these temperatures and were used to approximate the activation energy: 66
kJ/mol.

Table of Contents

Table of Contents

1. Introduction 1 - 6
2. Materials and Methods 6 - 8
3. Results and Discussion 8 - 19
4. Conclusion 19 - 20
5. References 20 - 21

About this Honors Thesis

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• Permission granted by the author to include this thesis or dissertation in this repository. All rights reserved by the author. Please contact the author for information regarding the reproduction and use of this thesis or dissertation.

School	Emory College
Department	Chemistry
Degree	BS
Submission	Honors Thesis
Language	English
Research Field	Chemistry, Physical Biophysics, General
Parola chiave	photoacid infrared spectroscopy Proton transfer water
Committee Chair / Thesis Advisor	Dyer, Brian, Emory University
Committee Members	Brody, Jed, Emory University Salaita, Khalid, Emory University

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