1
|
Wu B, Seifert NA, Oswald S, Jäger W, Xu Y. Rotational Spectroscopy of the 2,2,3,3,3-Pentafluoropropanol⋅⋅⋅Water Complex: Conformations and Large Amplitude Motions. Chemphyschem 2022; 23:e202200348. [PMID: 35759723 DOI: 10.1002/cphc.202200348] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/24/2022] [Indexed: 11/08/2022]
Abstract
The 2,2,3,3,3-pentafluoropropanol (PFP) monomer can exist in five conformations defined by the CCCO and CCOH dihedral angles: four mirror-imaged pairs (G+g+/G-g-, G+g-/G-g+, G+t/G-t, Tg+/Tg-) and an achiral Tt form. We examined the conformational landscape of the PFP⋅⋅⋅water complex using chirped pulsed Fourier transform microwave spectroscopy and theoretical calculations. Rotational spectra of two PFP⋅⋅⋅water conformers, PFPG+g+⋅⋅⋅WH and PFPTg+⋅⋅⋅WH , and seven deuterated isotopologues of each, were assigned. Tunneling splittings were observed for both conformers and are attributed to the exchange of the bonded and non-bonded hydrogen atoms of water. On the other hand, the tunneling splitting associated with the OH flipping motion in PFPTg+/Tg- appears to be quenched upon hydrogen bonding with water. The large amplitude motions associated with the water subunits were examined in detail to explain the very different magnitudes of the experimental and theoretical permanent electric dipole moment components. The study highlights the challenge in correctly identifying the conformers observed when large amplitude motions are involved. Quantum theory of atoms in molecules (QTAIM) and non-covalent interaction (NCI) analyses, as well as electrostatic potential (ESP) calculations were carried out to explore the nature of the non-covalent interactions and to appreciate the effects of fluorination.
Collapse
Affiliation(s)
- Bowei Wu
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Nathan A Seifert
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada.,Chemistry and Chemical & Biomedical Engineering Department University of New Haven, 300 Boston Post Rd, West Haven, CT, 06516, USA
| | - Sönke Oswald
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada.,Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstraße 6, 37077, Göttingen, Germany
| | - Wolfgang Jäger
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| |
Collapse
|
2
|
Wu B, Hazrah AS, Seifert NA, Oswald S, Jäger W, Xu Y. Higher-Energy Hexafluoroisopropanol···Water Isomer and Its Large Amplitude Motions: Rotational Spectra and DFT Calculations. J Phys Chem A 2021; 125:10401-10409. [PMID: 34846154 DOI: 10.1021/acs.jpca.1c09058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rotational spectra of the 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP)···water complex were measured using a chirped pulse Fourier-transform microwave spectrometer. The spectral analyses, aided by density functional theory calculations, reveal two HFIP···water isomers: one previously reported, trans HFIP (HFIPt)···water (Phys. Chem. Chem. Phys. 2015, 119, 5650-5657), and a new isomer, gauche HFIP (HFIPg)···water. To confirm the identity of the new isomer, rotational spectra of seven of its deuterated species were also measured and analyzed. Both the experimental and theoretical pieces of evidence indicate that the intermolecular interaction with water preferentially stabilizes the HFIPg monomer configuration over the global minimum configuration, HFIPt. The relative energy difference between these monomeric forms is 4.1 kJ mol-1 and decreases to 2.5 kJ mol-1 in the respective monohydrates at the B3LYP-D3(BJ)/def2-QZVP level of theory. Both rigid and relaxed potential energy surface scans were carried out to gain insights into the large-amplitude water motions in HFIPg···water. The nonobservation of a water tunneling splitting in HFIPt···water has been explained to be a result of a barrier-less (after zero-point-energy correction) pathway for the water motion, whereas in HFIPg···water, a relatively large water tunneling barrier was identified as the cause of barely resolved water tunneling splittings. Noncovalent interaction and quantum theory of atoms and molecule analyses were used to evaluate the changes in HFIPg···water when going from the minimum to the transition state in terms of attractive interactions such as the OH···H and OH···F contacts. The effect of fluorination is discussed by comparing the vastly different binding topologies of isopropanol···water and HFIP···water.
Collapse
Affiliation(s)
- Bowei Wu
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada
| | - Arsh S Hazrah
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada
| | - Nathan A Seifert
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada.,Department of Chemistry and Chemical & Biomedical Engineering, University of New Haven, 300 Boston Post Rd, West Haven, Connecticut 06516, United States
| | - Sönke Oswald
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada.,Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
| | - Wolfgang Jäger
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2R3, Canada
| |
Collapse
|
3
|
Juanes M, Saragi RT, Caminati W, Lesarri A. The Hydrogen Bond and Beyond: Perspectives for Rotational Investigations of Non‐Covalent Interactions. Chemistry 2019; 25:11402-11411. [DOI: 10.1002/chem.201901113] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/15/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Marcos Juanes
- Departamento de Química Física y Química Inorgánica—IU CINQUIMAFacultad de CienciasUniversidad de Valladolid 47011 Valladolid Spain
| | - Rizalina T. Saragi
- Departamento de Química Física y Química Inorgánica—IU CINQUIMAFacultad de CienciasUniversidad de Valladolid 47011 Valladolid Spain
| | - Walther Caminati
- Dipartimento di Chimica “G. Ciamician”Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Alberto Lesarri
- Departamento de Química Física y Química Inorgánica—IU CINQUIMAFacultad de CienciasUniversidad de Valladolid 47011 Valladolid Spain
| |
Collapse
|
4
|
Calabrese C, Li W, Prampolini G, Evangelisti L, Uriarte I, Cacelli I, Melandri S, Cocinero EJ. A General Treatment to Study Molecular Complexes Stabilized by Hydrogen‐, Halogen‐, and Carbon‐Bond Networks: Experiment and Theory of (CH
2
F
2
)
n
⋅⋅⋅(H
2
O)
m. Angew Chem Int Ed Engl 2019; 58:8437-8442. [DOI: 10.1002/anie.201902753] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/05/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Camilla Calabrese
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| | - Weixing Li
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
| | - Giacomo Prampolini
- Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR)Area della Ricerca via G. Moruzzi 1 I-56124 Pisa Italy
| | - Luca Evangelisti
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
- Department of ChemistryUniversity of Virginia McCormick Road VA 22903 Charlottesville USA
| | - Iciar Uriarte
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| | - Ivo Cacelli
- Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR)Area della Ricerca via G. Moruzzi 1 I-56124 Pisa Italy
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Risorgimento 35 I-56126 Pisa Italy
| | - Sonia Melandri
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
| | - Emilio J. Cocinero
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| |
Collapse
|
5
|
Calabrese C, Li W, Prampolini G, Evangelisti L, Uriarte I, Cacelli I, Melandri S, Cocinero EJ. A General Treatment to Study Molecular Complexes Stabilized by Hydrogen‐, Halogen‐, and Carbon‐Bond Networks: Experiment and Theory of (CH
2
F
2
)
n
⋅⋅⋅(H
2
O)
m
. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Camilla Calabrese
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| | - Weixing Li
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
| | - Giacomo Prampolini
- Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR)Area della Ricerca via G. Moruzzi 1 I-56124 Pisa Italy
| | - Luca Evangelisti
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
- Department of ChemistryUniversity of Virginia McCormick Road VA 22903 Charlottesville USA
| | - Iciar Uriarte
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| | - Ivo Cacelli
- Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR)Area della Ricerca via G. Moruzzi 1 I-56124 Pisa Italy
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Risorgimento 35 I-56126 Pisa Italy
| | - Sonia Melandri
- Dipartimento di Chimica “Giacomo Ciamician”Università degli Studi di Bologna via Selmi 2 I-40126 Bologna Italy
| | - Emilio J. Cocinero
- Departament of Physical ChemistryUniversity of the Basque Country (UPV/EHU) Barrio Sarriena, S/N 48940 Leioa Spain
- Biofisika Institute, (CSIC, UPV/EHU) 48080 Bilbao Spain
| |
Collapse
|
6
|
Pérez C, León I, Lesarri A, Pate BH, Martínez R, Millán J, Fernández JA. Isomerism of the Aniline Trimer. Angew Chem Int Ed Engl 2018; 57:15112-15116. [DOI: 10.1002/anie.201808602] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/17/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Cristóbal Pérez
- Deutsches Elektronen-Synchrotron DESY Notkestrasse 85 22607 Hamburg Germany
- Departamento de Química FísicaUniversidad del País Vasco 48940 Leioa Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Spain
| | - Iker León
- Departamento de Química Física y QuímicaInorgánica, Universidad de Valladolid 47011 Valladolid Spain
| | - Alberto Lesarri
- Departamento de Química Física y QuímicaInorgánica, Universidad de Valladolid 47011 Valladolid Spain
| | - Brooks H. Pate
- Department of ChemistryUniversity of Virginia McCormick Rd. Charlottesville VA 22904 USA
| | - Rodrigo Martínez
- Departamento de QuímicaUniversidad de La Rioja 26006 Logroño Spain
| | - Judith Millán
- Departamento de QuímicaUniversidad de La Rioja 26006 Logroño Spain
| | - José A. Fernández
- Departamento de Química FísicaUniversidad del País Vasco 48080 Bilbao Spain
| |
Collapse
|
7
|
Pérez C, León I, Lesarri A, Pate BH, Martínez R, Millán J, Fernández JA. Isomerism of the Aniline Trimer. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Cristóbal Pérez
- Deutsches Elektronen-Synchrotron DESY Notkestrasse 85 22607 Hamburg Germany
- Departamento de Química FísicaUniversidad del País Vasco 48940 Leioa Spain
- Ikerbasque, Basque Foundation for Science 48013 Bilbao Spain
| | - Iker León
- Departamento de Química Física y QuímicaInorgánica, Universidad de Valladolid 47011 Valladolid Spain
| | - Alberto Lesarri
- Departamento de Química Física y QuímicaInorgánica, Universidad de Valladolid 47011 Valladolid Spain
| | - Brooks H. Pate
- Department of ChemistryUniversity of Virginia McCormick Rd. Charlottesville VA 22904 USA
| | - Rodrigo Martínez
- Departamento de QuímicaUniversidad de La Rioja 26006 Logroño Spain
| | - Judith Millán
- Departamento de QuímicaUniversidad de La Rioja 26006 Logroño Spain
| | - José A. Fernández
- Departamento de Química FísicaUniversidad del País Vasco 48080 Bilbao Spain
| |
Collapse
|
8
|
Thomas J, Mariona E, Xu Y. Rotational spectra of two six-membered heterocyclic N-methyl-piperidinol compounds: Conformations by OH rotation, N-methyl inversion, and ring puckering. J Chem Phys 2017; 146:104303. [DOI: 10.1063/1.4977895] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Javix Thomas
- Department of Chemistry, University of Alberta, Edmonton T6G 2G2, Canada
| | - Eric Mariona
- Department of Chemistry, University of Alberta, Edmonton T6G 2G2, Canada
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, Edmonton T6G 2G2, Canada
| |
Collapse
|
9
|
Thomas J, Seifert NA, Jäger W, Xu Y. A Direct Link from the Gas to the Condensed Phase: A Rotational Spectroscopic Study of 2,2,2-Trifluoroethanol Trimers. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612161] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Javix Thomas
- Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Nathan A. Seifert
- Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Wolfgang Jäger
- Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| | - Yunjie Xu
- Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
| |
Collapse
|
10
|
Thomas J, Seifert NA, Jäger W, Xu Y. A Direct Link from the Gas to the Condensed Phase: A Rotational Spectroscopic Study of 2,2,2-Trifluoroethanol Trimers. Angew Chem Int Ed Engl 2017; 56:6289-6293. [PMID: 28229516 DOI: 10.1002/anie.201612161] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 11/07/2022]
Abstract
Rotational spectra of the three most stable conformers (I, II, III) of the ternary 2,2,2-trifluoroethanol (TFE) cluster were measured using Fourier transform microwave spectrometers, and unambiguously assigned with the aid of ab initio calculations. The most stable conformer, I, contains one trans-TFE subunit which is unstable in its isolated gas phase form. The study offers new insights into how the trans conformation is stabilized in TFE clusters of increasing size, and eventually becomes a dominant conformation in the liquid phase. A detailed analysis shows that while O-H⋅⋅⋅O-H and O-H⋅⋅⋅F-C hydrogen bonds are the most significant attractive interactions which stabilize all three conformers, the main driving force for the stability of I over III, which has all gauche-TFE subunits, is the attractive interaction of C-F⋅⋅⋅F-C contact pairs. A new type of three-point F⋅⋅⋅F⋅⋅⋅F attractive contact interaction is also identified.
Collapse
Affiliation(s)
- Javix Thomas
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Nathan A Seifert
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Wolfgang Jäger
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| |
Collapse
|
11
|
Chemical Institute of Canada and Canadian Society for Chemistry Awards 2016. Angew Chem Int Ed Engl 2016; 55:12951-12952. [DOI: 10.1002/anie.201608238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
12
|
Preise 2016 des Chemical Institute of Canada und der Canadian Society for Chemistry. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|