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Wang L, Yang T, Wang Z, Xu Y, Feng G. Intermolecular amide and aldehyde interactions: rotational spectroscopy of the complexes of formaldehyde with 2-azetidinone and formamide. Phys Chem Chem Phys 2022; 24:28012-28018. [DOI: 10.1039/d2cp04307f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The binding topologies and strength of amide–aldehyde interactions were explored by rotational spectroscopy and computations.
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Affiliation(s)
- Liuting Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road. 55, 401331, Chongqing, China
| | - Tingting Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road. 55, 401331, Chongqing, China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road. 55, 401331, Chongqing, China
| | - Yugao Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road. 55, 401331, Chongqing, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road. 55, 401331, Chongqing, China
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Lago AF, de Rogério DO, Farias DB, Cavasso-Filho RL, Dávalos JZ. Investigation of the molecular structure and VUV-induced ion dissociation dynamics of 2-azetidinone (C 3 H 5 NO). RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8988. [PMID: 33095953 DOI: 10.1002/rcm.8988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Alexsandre F Lago
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Diego O de Rogério
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Dayane B Farias
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Reinaldo L Cavasso-Filho
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Juan Z Dávalos
- Instituto de Química Física Rocasolano, CSIC, Madrid, 28006, Spain
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Samdal S, Møllendal H, Guillemin JC. Conformational properties of cis- and trans-N-Cyclopropylformamide studied by microwave spectroscopy and quantum chemical calculations. J Phys Chem A 2015; 119:3375-83. [PMID: 25772313 DOI: 10.1021/acs.jpca.5b00542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The microwave spectra of cis- and trans-N-cyclopropylformamide, C3H5NHC(═O)H, have been investigated in the 31-123 GHz spectral region at room temperature. Rotational isomerism about the Cring-N bond is possible for both cis and trans. MP2/cc-pVTZ and CCSD/cc-pVTZ calculations indicate that there are two conformers in the case of cis, called Cis I and Cis II, while only one rotamer, denoted Trans, exists for trans-N-cyclopropylformamide. The quantum chemical methods predict that Cis I has an electronic energy that is 8-9 kJ/mol higher than the energy of Cis II. The CCSD H-Cring-N-H dihedral angle is 0.0° in Cis I, 93.0° in Cis II and 79.9° in Trans. The CCSD and MP2 calculations predict a slightly nonplanar structure for the amide moiety in both Trans and Cis II, whereas Cis I is computed to have a planar amide group bisecting the cyclopropyl ring. Surprisingly, the MP2 and CCSD methods predict practically the same energy for Trans and Cis II. The spectra of Cis II in the ground state and in two vibrationally excited states were assigned, while the spectrum of Cis I was not found presumably because of a low Boltzmann population due to a relatively large energy difference (8-9 kJ/mol). The spectra of the ground vibrational state and seven vibrationally excited states of Trans, were assigned. Vibrational frequencies of several of the excited state of both Cis II and Trans were determined by relative intensity measurements. The experimental and CCSD rotational constants are in satisfactory agreement. The MP2 values of the quartic centrifugal distortion constants of both species are in relatively poor agreement with their experimental counterparts. The MP2 vibration-rotation constants and sextic centrifugal distortion constants have little resemblance with the corresponding experimental values.
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Affiliation(s)
- Svein Samdal
- †Centre for Theoretical and Computational Chemistry (CTCC), Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, NO-0315 Oslo, Norway
| | - Harald Møllendal
- †Centre for Theoretical and Computational Chemistry (CTCC), Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, NO-0315 Oslo, Norway
| | - Jean-Claude Guillemin
- ‡Institut des Sciences Chimiques de Rennes, École Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France
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López JC, Sánchez R, Blanco S, Alonso JL. Microsolvation of 2-azetidinone: a model for the peptide group–water interactions. Phys Chem Chem Phys 2015; 17:2054-66. [DOI: 10.1039/c4cp04577g] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The geometries of the 2-azetidinone–(H2O)n clusters, determined by rotational spectroscopy, show the preference of water to interact with the CO group and the effects of cooperative hydrogen bonding.
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Affiliation(s)
- Juan C. López
- Grupo de Espectroscopía Molecular (GEM)
- Universidad de Valladolid
- Laboratorios de Espectroscopía y Bioespectroscopía
- Edificio Quifima
- 47011 Valladolid
| | - Raquel Sánchez
- Grupo de Espectroscopía Molecular (GEM)
- Universidad de Valladolid
- Laboratorios de Espectroscopía y Bioespectroscopía
- Edificio Quifima
- 47011 Valladolid
| | - Susana Blanco
- Grupo de Espectroscopía Molecular (GEM)
- Universidad de Valladolid
- Laboratorios de Espectroscopía y Bioespectroscopía
- Edificio Quifima
- 47011 Valladolid
| | - José L. Alonso
- Grupo de Espectroscopía Molecular (GEM)
- Universidad de Valladolid
- Laboratorios de Espectroscopía y Bioespectroscopía
- Edificio Quifima
- 47011 Valladolid
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Møllendal H, Samdal S. Microwave Spectra, Planarity, and Conformational Preferences of cis- and trans-N-Vinylformamide. J Phys Chem A 2012; 116:12073-81. [DOI: 10.1021/jp309552m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Harald Møllendal
- Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, NO-0315 Oslo, Norway.
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Ahmed M, Ganesan A, Wang F, Feyer V, Plekan O, Prince KC. Photoelectron Spectra of Some Antibiotic Building Blocks: 2-Azetidinone and Thiazolidine-Carboxylic Acid. J Phys Chem A 2012; 116:8653-60. [DOI: 10.1021/jp302950y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marawan Ahmed
- eChemistry Laboratory, Faculty
of Life and Social Sciences, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Aravindhan Ganesan
- eChemistry Laboratory, Faculty
of Life and Social Sciences, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Feng Wang
- eChemistry Laboratory, Faculty
of Life and Social Sciences, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Vitaliy Feyer
- Sincrotrone Trieste, Area Science Park, I-34149 Basovizza, Trieste, Italy
| | - Oksana Plekan
- Sincrotrone Trieste, Area Science Park, I-34149 Basovizza, Trieste, Italy
| | - Kevin C. Prince
- Sincrotrone Trieste, Area Science Park, I-34149 Basovizza, Trieste, Italy
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Area Science Park,
I-34149 Trieste, Italy
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