|
1
|
Abstract
For 2-X-ethanols, where X = F, OH, or NH2, the gauche conformer is favored over the trans conformer by at least 2 kcal/mol. Initially, this preference, ΔE, was attributed to an intramolecular hydrogen bond, IMHB, between the OH and X groups. Over the years, this conclusion has been challenged by two major arguments. One claim is that the entirety of ΔE can be accounted for by the gauche effect. Against this, calculations using five different methods show that the maximum contribution of the gauche effect to ΔE is less than 1 kcal/mol. A second argument employs the quantum theory of atoms in molecules to contend that the absence of a bond critical point (BCP) between the OH and X groups in 2-X-ethanols denotes the lack of an IMHB. By looking at the 2-X-ethanols at fixed XCCO torsional angles ranging from 0° to 60°, it is shown that the BCP criterion is inconsistent with other properties such as energy, bond lengths, and stretching frequencies. These inconsistencies are removed when the theory of noncovalent interactions is used. The IMHBs in 2-X-ethanols are found to be similar in form but smaller in magnitude than their intermolecular counterparts. This work concludes that 2-X-ethanols form IMHBs.
Collapse
Affiliation(s)
- Robert E Rosenberg
- Department of Chemistry, Transylvania University, 300 North Broadway, Lexington, Kentucky 40508, United States
| |
Collapse
|
|
2
|
Cunha de Miranda B, Garcia GA, Gaie-Levrel F, Mahjoub A, Gautier T, Fleury B, Nahon L, Pernot P, Carrasco N. Molecular Isomer Identification of Titan’s Tholins Organic Aerosols by Photoelectron/Photoion Coincidence Spectroscopy Coupled to VUV Synchrotron Radiation. J Phys Chem A 2016; 120:6529-40. [PMID: 27471793 DOI: 10.1021/acs.jpca.6b03346] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Barbara Cunha de Miranda
- Synchrotron SOLEIL, DESIRS Beamline, L’Orme des Merisiers, St Aubin, 91192 Gif-sur-Yvette Cedex, France
| | - Gustavo A. Garcia
- Synchrotron SOLEIL, DESIRS Beamline, L’Orme des Merisiers, St Aubin, 91192 Gif-sur-Yvette Cedex, France
| | - François Gaie-Levrel
- Synchrotron SOLEIL, DESIRS Beamline, L’Orme des Merisiers, St Aubin, 91192 Gif-sur-Yvette Cedex, France
- Gas
and Aerosol Metrology Department, Chemistry and Biology
Division, Laboratoire National de Métrologie et d’Essais − LNE (National Metrology Institute and Testing Laboratory), 1 rue Gaston
Boissier, 75724 Paris Cedex 15, France
| | - Ahmed Mahjoub
- Université Versailles St-Quentin; Sorbonne Universités, UPMC Université Paris 06, CNRS/INSU, LATMOS-IPSL, 11 Boulevard d’Alembert, 78280 Guyancourt, France
| | - Thomas Gautier
- Université Versailles St-Quentin; Sorbonne Universités, UPMC Université Paris 06, CNRS/INSU, LATMOS-IPSL, 11 Boulevard d’Alembert, 78280 Guyancourt, France
- NASA Postdoctoral Program, GSFC, Greenbelt, Maryland 20771, United States
| | - Benjamin Fleury
- Université Versailles St-Quentin; Sorbonne Universités, UPMC Université Paris 06, CNRS/INSU, LATMOS-IPSL, 11 Boulevard d’Alembert, 78280 Guyancourt, France
| | - Laurent Nahon
- Synchrotron SOLEIL, DESIRS Beamline, L’Orme des Merisiers, St Aubin, 91192 Gif-sur-Yvette Cedex, France
| | - Pascal Pernot
- Laboratoire de
Chimie Physique, UMR8000 CNRS/Université Paris-Sud, 91405 Orsay Cedex, France
| | - Nathalie Carrasco
- Université Versailles St-Quentin; Sorbonne Universités, UPMC Université Paris 06, CNRS/INSU, LATMOS-IPSL, 11 Boulevard d’Alembert, 78280 Guyancourt, France
- Institut Universitaire de France, 103 Boulevard St-Michel, 75005 Paris, France
| |
Collapse
|
|
3
|
Thomsen DL, Axson JL, Schrøder SD, Lane JR, Vaida V, Kjaergaard HG. Intramolecular Interactions in 2-Aminoethanol and 3-Aminopropanol. J Phys Chem A 2013; 117:10260-73. [DOI: 10.1021/jp405512y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ditte L. Thomsen
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Jessica L. Axson
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Sidsel D. Schrøder
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Joseph R. Lane
- Department
of Chemistry, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Veronica Vaida
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215, United States
- Cooperative Institute for Research in Environmental Sciences, Boulder, Colorado 80309, United States
| | - Henrik G. Kjaergaard
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| |
Collapse
|
|
4
|
Simond MR, Ballerat-Busserolles K, Coxam JY, Pádua AAH. Molecular Simulations of Primary Alkanolamines Using an Extendable Force Field. Chemphyschem 2012; 13:3866-74. [PMID: 23047473 DOI: 10.1002/cphc.201200508] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Mickaël R Simond
- Institut de Chimie de Clermont-Ferrand, Université Blaise Pascal Clermont-Ferrand & CNRS, Aubière, France
| | | | | | | |
Collapse
|
|
6
|
Chiesa K, Shvoryna A, Bernet B, Vasella A. Oligonucleotide Analogues with Integrated Bases and Backbones. Part 24. Helv Chim Acta 2010. [DOI: 10.1002/hlca.201000011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
7
|
|
|
8
|
Yan M, Shan X, Wu F, Xia X, Wang K, Xu K, Chen X. Electron Momentum Spectroscopy Study on Valence Electronic Structures of Ethylamine. J Phys Chem A 2008; 113:507-12. [DOI: 10.1021/jp808281w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mi Yan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Xu Shan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Fang Wu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Xuexin Xia
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Kedong Wang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Kezun Xu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Xiangjun Chen
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China
| |
Collapse
|
|
9
|
Kishimoto N, Ohno K. Observation of anisotropic interactions between metastable atoms and target molecules by two-dimensional collisional ionization electron spectroscopy. INT REV PHYS CHEM 2007. [DOI: 10.1080/01442350601053393] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|