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Title: Probing the Low-Barrier Hydrogen Bond in Hydrogen Maleate in the Gas Phase: A Photoelectron Spectroscopy and ab Initio Study

Abstract

The strength of the low-barrier hydrogen bond in hydrogen maleate in the gas phase was investigated by low-temperature photoelectron spectroscopy and ab initio calculations. Photoelectron spectra of maleic and fumaric acid monoanions (cis-/trans-HO2CCHdCHCO2 -) were obtained at low temperatures and at 193 nm photon energy. Vibrational structure was observed for trans-HO2CCHdCHCO2 - due to the OCO bending modes; however, cis-HO2CCHdCHCO2 - yielded a broad and featureless spectrum. The electron binding energy of cis-HO2CCHdCHCO2 - is about 1 eV blue-shifted relative to trans-HO2CCHdCHCO2 - due to the formation of intramolecular hydrogen bond in the cis-isomer. Theoretical calculations (CCSD(T)/ aug-cc-pVTZ and B3LYP/aug-cc-pVTZ) were carried out to estimate the strength of the intramolecular hydrogen bond in cis-HO2CCHdCHCO2 -. Combining experimental and theoretical calculations yields an estimate of 21.5 ( 2.0 kcal/mol for the intramolecular hydrogen bond strength in hydrogen maleate.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
876996
Report Number(s):
PNNL-SA-47874
Journal ID: ISSN 1089-5639; JPCAFH; 1391a; 1391; KC0301020; TRN: US200608%%359
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry A, 109(47):10633-10637
Additional Journal Information:
Journal Volume: 109; Journal Issue: 47; Journal ID: ISSN 1089-5639
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; BENDING; BINDING ENERGY; ELECTRONS; FUMARIC ACID; HYDROGEN; PHOTOELECTRON SPECTROSCOPY; PHOTONS; SPECTRA; Environmental Molecular Sciences Laboratory

Citation Formats

Woo, Hin-koon, Wang, Xue B, Wang, Lai S, and Lau, Kai Chung. Probing the Low-Barrier Hydrogen Bond in Hydrogen Maleate in the Gas Phase: A Photoelectron Spectroscopy and ab Initio Study. United States: N. p., 2005. Web. doi:10.1021/jp0553277.
Woo, Hin-koon, Wang, Xue B, Wang, Lai S, & Lau, Kai Chung. Probing the Low-Barrier Hydrogen Bond in Hydrogen Maleate in the Gas Phase: A Photoelectron Spectroscopy and ab Initio Study. United States. https://doi.org/10.1021/jp0553277
Woo, Hin-koon, Wang, Xue B, Wang, Lai S, and Lau, Kai Chung. 2005. "Probing the Low-Barrier Hydrogen Bond in Hydrogen Maleate in the Gas Phase: A Photoelectron Spectroscopy and ab Initio Study". United States. https://doi.org/10.1021/jp0553277.
@article{osti_876996,
title = {Probing the Low-Barrier Hydrogen Bond in Hydrogen Maleate in the Gas Phase: A Photoelectron Spectroscopy and ab Initio Study},
author = {Woo, Hin-koon and Wang, Xue B and Wang, Lai S and Lau, Kai Chung},
abstractNote = {The strength of the low-barrier hydrogen bond in hydrogen maleate in the gas phase was investigated by low-temperature photoelectron spectroscopy and ab initio calculations. Photoelectron spectra of maleic and fumaric acid monoanions (cis-/trans-HO2CCHdCHCO2 -) were obtained at low temperatures and at 193 nm photon energy. Vibrational structure was observed for trans-HO2CCHdCHCO2 - due to the OCO bending modes; however, cis-HO2CCHdCHCO2 - yielded a broad and featureless spectrum. The electron binding energy of cis-HO2CCHdCHCO2 - is about 1 eV blue-shifted relative to trans-HO2CCHdCHCO2 - due to the formation of intramolecular hydrogen bond in the cis-isomer. Theoretical calculations (CCSD(T)/ aug-cc-pVTZ and B3LYP/aug-cc-pVTZ) were carried out to estimate the strength of the intramolecular hydrogen bond in cis-HO2CCHdCHCO2 -. Combining experimental and theoretical calculations yields an estimate of 21.5 ( 2.0 kcal/mol for the intramolecular hydrogen bond strength in hydrogen maleate.},
doi = {10.1021/jp0553277},
url = {https://www.osti.gov/biblio/876996}, journal = {Journal of Physical Chemistry A, 109(47):10633-10637},
issn = {1089-5639},
number = 47,
volume = 109,
place = {United States},
year = {Thu Dec 01 00:00:00 EST 2005},
month = {Thu Dec 01 00:00:00 EST 2005}
}