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U.S. Department of Energy
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Interactions between surface-confined acids and a vapor-phase base: Structure/reactivity relationships

Conference ·
OSTI ID:370187
; ;  [1]
  1. Sandia National Lab., Albuquerque, NM (United States)

Fourier transform infrared-external reflectance spectroscopy (FTIR-ERS) and X-ray photoelectron spectroscopy studies using self-assembled monolayers (SAMs) of three mercaptobenzoic acid (MBA) isomers on Au indicate that increasing proximity of the carboxylic acid group to the Au substrate changes the electronic environment of the benzene ring and carboxyl-group. We also used FTIR-ERS and thickness-shear-mode-resonators to study the reactivity of MBA SAMs during dosing with vapor-phase decylamine. Susceptibility to proton transfer decreases in the order 4{yields}3{yields}2-MBA. This talk will focus on how structure and surface-induced ordering impose constraints upon SAM reactivity.

OSTI ID:
370187
Report Number(s):
CONF-960376--
Country of Publication:
United States
Language:
English