1
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Torres-Hernández F, Pinillos P, Li W, Saragi RT, Camiruaga A, Juanes M, Usabiaga I, Lesarri A, Fernández JA. Competition between O-H and S-H Intermolecular Interactions in Conformationally Complex Systems: The 2-Phenylethanethiol and 2-Phenylethanol Dimers. J Phys Chem Lett 2024; 15:5674-5680. [PMID: 38767855 PMCID: PMC11145646 DOI: 10.1021/acs.jpclett.4c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/22/2024]
Abstract
Noncovalent interactions involving sulfur centers play a relevant role in biological and chemical environments. Yet, detailed molecular descriptions are scarce and limited to very simple model systems. Here we explore the formation of the elusive S-H···S hydrogen bond and the competition between S-H···O and O-H···S interactions in pure and mixed dimers of the conformationally flexible molecules 2-phenylethanethiol (PET) and 2-phenylethanol (PEAL), using the isolated and size-controlled environment of a jet expansion. The structure of both PET-PET and PET-PEAL dimers was unraveled through a comprehensive methodology that combined rotationally resolved microwave spectroscopy, mass-resolved isomer-specific infrared laser spectroscopy, and quantum chemical calculations. This synergic experimental-computational approach offered unique insights into the potential energy surface, conformational equilibria, molecular structure, and intermolecular interactions of the dimers. The results show a preferential order for establishing hydrogen bonds following the sequence S-H···S < S-H···O ≲ O-H···S < O-H···O, despite the hydrogen bond only accounting for a fraction of the total interaction energy.
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Affiliation(s)
- Fernando Torres-Hernández
- Departamento
de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, Leioa 48940, Spain
| | - Paul Pinillos
- Departamento
de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, Leioa 48940, Spain
| | - Wenqin Li
- Departamento
de Química Física y Química Inorgánica,
Facultad de Ciencias - I.U. CINQUIMA, Universidad
de Valladolid, Paseo de Belén, 7, E-47011 Valladolid, Spain
| | - Rizalina Tama Saragi
- Departamento
de Química Física y Química Inorgánica,
Facultad de Ciencias - I.U. CINQUIMA, Universidad
de Valladolid, Paseo de Belén, 7, E-47011 Valladolid, Spain
| | - Ander Camiruaga
- Departamento
de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, Leioa 48940, Spain
| | - Marcos Juanes
- Departamento
de Química Física y Química Inorgánica,
Facultad de Ciencias - I.U. CINQUIMA, Universidad
de Valladolid, Paseo de Belén, 7, E-47011 Valladolid, Spain
| | - Imanol Usabiaga
- Departamento
de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, Leioa 48940, Spain
| | - Alberto Lesarri
- Departamento
de Química Física y Química Inorgánica,
Facultad de Ciencias - I.U. CINQUIMA, Universidad
de Valladolid, Paseo de Belén, 7, E-47011 Valladolid, Spain
| | - José A. Fernández
- Departamento
de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), Barrio Sarriena s/n, Leioa 48940, Spain
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2
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Lv W, Xu Y, Yang T, Wang L, Huang J, Huang H, Feng G. Unveiling the underappreciated: The bonding features of C-H⋯S-S interactions observed from rotational spectroscopy. J Chem Phys 2024; 160:134302. [PMID: 38557843 DOI: 10.1063/5.0200788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
The C-H⋯S-S interactions are fundamentally important to understand the stability of biomacromolecules and their binding with small molecules, but they are still underappreciated. Herein, we characterized the C-H⋯S-S interactions in model molecular complexes. The rotational spectra of the complexes of diethyl disulfide with CH2CH2 and CH2CHF were measured and analyzed. All the detected structures are mainly stabilized by a C-H⋯S-S hydrogen bond, providing stabilization energies of 2.3-7.2 kJ mol-1. Incidental C-H⋯π or C-H⋯F interactions enhance the stabilization of the complexes. London dispersion, which accounts for 54%-68% of the total attractions, is the main driving force of stabilization. The provided bonding features of C-H⋯S-S are crucial for understanding the stabilizing role of this type of interaction in diverse processes such as supramolecular recognition, protein stability, and enzyme activity.
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Affiliation(s)
- Wenqi Lv
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Yugao Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Tingting Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Liuting Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Jinxi Huang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Haiying Huang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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3
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Silva WGDP, Poonia T, van Wijngaarden J. Exploring the conformational landscape, hydrogen bonding, and internal dynamics in the diallyl ether and diallyl sulfide monohydrates. J Chem Phys 2024; 160:044302. [PMID: 38258923 DOI: 10.1063/5.0180901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/01/2024] [Indexed: 01/24/2024] Open
Abstract
The conformational spaces of the diallyl ether (DAE) and diallyl sulfide (DAS) monohydrates were explored using rotational spectroscopy from 6 to 19 GHz. Calculations at the B3LYP-D3(BJ)/aug-cc-pVTZ level suggested significant differences in their conformational behavior, with DAE-w exhibiting 22 unique conformers and DAS-w featuring three stable structures within 6 kJ mol-1. However, only transitions from the lowest energy conformer of each were experimentally observed. Spectral analysis confirmed that binding with water does not alter the conformational preference for the lowest energy structure of the monomers, but it does influence the relative stabilities of all other conformers, particularly in the case of DAE. Non-covalent interaction and quantum theory of atoms in molecules analyses showed that the observed conformer for each complex is stabilized by two intermolecular hydrogen bonds (HBs), where water primarily interacts with the central oxygen or sulfur atom of the diallyl compounds, along with secondary interactions involving the allyl groups. The nature of these interactions was further elucidated using symmetry-adapted perturbation theory, which suggests that the primary HB interaction with S in DAS is weaker and more dispersive in nature compared to the primary HB in DAE. This supports the experimental observation of a tunneling splitting exclusively in the rotational spectrum of DAS-w, as the weaker contact allows water to undergo internal motions within the complex, as shown based on calculated transition state structures for possible tunneling pathways.
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Affiliation(s)
- Weslley G D P Silva
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - Tamanna Poonia
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Jennifer van Wijngaarden
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- Department of Chemistry, York University, Toronto, Ontario M3J 1P3, Canada
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4
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Lu T, Zhang J, Xu Y, Wang Z, Feng G, Zeng Z. Hydrogen bond interactions between thioethers and amides: A joint rotational spectroscopic and theoretical study of the formamide⋯dimethyl sulfide adduct. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 288:122199. [PMID: 36473293 DOI: 10.1016/j.saa.2022.122199] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
The rotational spectrum of the binary adduct of formamide (HCONH2) with dimethyl sulfide (DMS) has been investigated employing cavity-based Fourier transform microwave spectroscopy combined with theoretical computations. Experimentally, only one isomer of the adduct was unambiguously observed and assigned according to the theoretically predicted spectroscopic parameters, and its rotational spectrum displays the hyperfine splittings associated with the 14N nuclear quadrupole coupling effect. The observed isomer exhibits Cs symmetry, such that the ∠CSC angle of the DMS subunit is bisected by the ab-plane of the HCONH2 moiety. The two moieties in the detected isomer are connected via one primary NH···S and two secondary CH···O hydrogen bonds. Quantum theory of atoms in molecules (QTAIM), non-covalent interaction (NCI), natural bond orbital (NBO) and symmetry-adapted perturbation theory (SAPT) approaches were utilized for characterizing the intermolecular interactions occurring in the titled adduct. Additionally, the adduct of HCONH2 with dimethyl ether (DME) was also theoretically investigated to compare the difference in structure and energy characteristics between the NH···S and NH···O hydrogen bonds.
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Affiliation(s)
- Tao Lu
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China; School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, Chongqing 401331, China.
| | - Jiaqi Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, Chongqing 401331, China
| | - Yugao Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, Chongqing 401331, China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, Chongqing 401331, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, Chongqing 401331, China
| | - Zhu Zeng
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China.
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5
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Molecular Recognition, Transient Chirality and Sulfur Hydrogen Bonding in the Benzyl Mercaptan Dimer. Symmetry (Basel) 2021. [DOI: 10.3390/sym13112022] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The homodimers of transiently chiral molecules offer physical insight into the process of molecular recognition, the preference for homo or heterochiral aggregation and the nature of the non-covalent interactions stabilizing the adducts. We report the observation of the benzyl mercaptan dimer in the isolation conditions of a supersonic jet expansion, using broadband (chirped-pulse) microwave spectroscopy. A single homochiral isomer was observed for the dimer, stabilized by a cooperative sequence of S-H···S and S-H···π hydrogen bonds. The structural data, stabilization energies and energy decomposition describe these non-covalent interactions as weak and dispersion-controlled. A comparison is also provided with the benzyl alcohol dimer.
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6
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Li X, Lu T, Obenchain DA, Zhang J, Herbers S, Grabow JU, Feng G. The Characteristics of Disulfide-Centered Hydrogen Bonds. Angew Chem Int Ed Engl 2021; 60:5838-5842. [PMID: 33258264 DOI: 10.1002/anie.202014364] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 11/10/2022]
Abstract
The disulfide-centered hydrogen bonds in the three different model systems of diethyl disulfide⋅⋅⋅H2 O/H2 CO/HCONH2 clusters were characterized by high-resolution Fourier transform microwave spectroscopy and quantum chemical computations. The global minimum energy structures for each cluster are experimentally observed and are characterized by one of the three different S-S⋅⋅⋅H-C/N/O disulfide-centered hydrogen bonds and two O⋅⋅⋅H-C hydrogen bonds. Non-covalent interaction and natural bond orbital analyses further confirm the experimental observations. The symmetry-adapted perturbation theory (SAPT) analysis reveals that electrostatic is dominant in diethyl disulfide⋅⋅⋅H2 O/HCONH2 clusters being consistent with normal hydrogen bonds, whilst dispersion takes over in diethyl disulfide⋅⋅⋅H2 CO cluster. Our study gives accurate structural parameters for the disulfide bond involved non-covalent clusters providing important benchmarking data for the theoretical evaluation of more complex systems.
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Affiliation(s)
- Xiaolong Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331, Chongqing, China.,Institut für Physikalische Chemie and Elektrochemie, Gottfried Wilhelm Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Tao Lu
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331, Chongqing, China
| | - Daniel A Obenchain
- Institut für Physikalische Chemie and Elektrochemie, Gottfried Wilhelm Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Jiaqi Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331, Chongqing, China
| | - Sven Herbers
- Institut für Physikalische Chemie and Elektrochemie, Gottfried Wilhelm Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Jens-Uwe Grabow
- Institut für Physikalische Chemie and Elektrochemie, Gottfried Wilhelm Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331, Chongqing, China
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7
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Li X, Lu T, Obenchain DA, Zhang J, Herbers S, Grabow J, Feng G. The Characteristics of Disulfide‐Centered Hydrogen Bonds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014364] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaolong Li
- School of Chemistry and Chemical Engineering Chongqing University Daxuecheng South Rd. 55 401331 Chongqing China
- Institut für Physikalische Chemie and Elektrochemie Gottfried Wilhelm Leibniz Universität Hannover Callinstraße 3A 30167 Hannover Germany
| | - Tao Lu
- School of Chemistry and Chemical Engineering Chongqing University Daxuecheng South Rd. 55 401331 Chongqing China
| | - Daniel A. Obenchain
- Institut für Physikalische Chemie and Elektrochemie Gottfried Wilhelm Leibniz Universität Hannover Callinstraße 3A 30167 Hannover Germany
| | - Jiaqi Zhang
- School of Chemistry and Chemical Engineering Chongqing University Daxuecheng South Rd. 55 401331 Chongqing China
| | - Sven Herbers
- Institut für Physikalische Chemie and Elektrochemie Gottfried Wilhelm Leibniz Universität Hannover Callinstraße 3A 30167 Hannover Germany
| | - Jens‐Uwe Grabow
- Institut für Physikalische Chemie and Elektrochemie Gottfried Wilhelm Leibniz Universität Hannover Callinstraße 3A 30167 Hannover Germany
| | - Gang Feng
- School of Chemistry and Chemical Engineering Chongqing University Daxuecheng South Rd. 55 401331 Chongqing China
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8
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Ghosh S, Chopra P, Wategaonkar S. C-HS interaction exhibits all the characteristics of conventional hydrogen bonds. Phys Chem Chem Phys 2020; 22:17482-17493. [PMID: 32531006 DOI: 10.1039/d0cp01508c] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This is a tale of a pair of a hydrogen bond donor and acceptor, namely the CH donor and sulphur acceptor, neither of which is a conventional hydrogen bond participant. Sulfur (S), being less electronegative (2.58) compared to its first row analogue oxygen (3.44), has not been considered as a potential HB acceptor for a long time. The C-HY (Y = HB acceptor) interaction has its own history of exhibiting omnidirectional shifts in the CH stretching frequency upon complex formation. Therefore, a systematic investigation of the C-HS interaction was the primary goal of the work presented here. Together with gas-phase vibrational spectroscopy and ab initio quantum chemical calculations, the nature and strength of the C-HS hydrogen bond (HB) have been investigated in the complexes of 1,2,4,5-tetracyanobenzene (TCNB) with various sulfur containing solvents. Despite the unconventional nature of both HB donor and HB acceptor (C-H and S, respectively), it was found that the C-HS hydrogen bond exhibits all the characteristics of the conventional hydrogen bond. The binding strength of the C-HS H-bond in these complexes was found to be comparable to that of the conventional hydrogen bonds. The unusual stabilities of these HBs have been mainly attributed to the attractive dispersion interaction.
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Affiliation(s)
- Sanat Ghosh
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India.
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9
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Juanes M, Saragi RT, Pinacho R, Rubio JE, Lesarri A. Sulfur hydrogen bonding and internal dynamics in the monohydrates of thenyl mercaptan and thenyl alcohol. Phys Chem Chem Phys 2020; 22:12412-12421. [DOI: 10.1039/d0cp01706j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Water forms weak H-bonds with thenyl compounds, simultaneously retaining internal mobility in the dimer.
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Affiliation(s)
- Marcos Juanes
- Departamento de Química Física y Química Inorgánica and I.U. CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid, Paseo de Belén, 7
- 47011 Valladolid
- Spain
| | - Rizalina Tama Saragi
- Departamento de Química Física y Química Inorgánica and I.U. CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid, Paseo de Belén, 7
- 47011 Valladolid
- Spain
| | - Ruth Pinacho
- Departamento de Electrónica
- Escuela de Ingeniería de Telecomunicaciones
- Universidad de Valladolid
- Paseo de Belén, 15
- 47011 Valladolid
| | - José E. Rubio
- Departamento de Electrónica
- Escuela de Ingeniería de Telecomunicaciones
- Universidad de Valladolid
- Paseo de Belén, 15
- 47011 Valladolid
| | - Alberto Lesarri
- Departamento de Química Física y Química Inorgánica and I.U. CINQUIMA
- Facultad de Ciencias
- Universidad de Valladolid, Paseo de Belén, 7
- 47011 Valladolid
- Spain
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10
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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
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11
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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
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12
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Trung NT, Khanh PN, Carvalho AJP, Nguyen MT. Remarkable shifts of C sp2 -H and O-H stretching frequencies and stability of complexes of formic acid with formaldehydes and thioformaldehydes. J Comput Chem 2019; 40:1387-1400. [PMID: 30715728 DOI: 10.1002/jcc.25793] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 11/07/2022]
Abstract
Thirty-six stable complexes of formic acid with formaldehydes and thioformaldehydes were determined on the potential energy surface, in which the XCHO···HCOOH complexes are found to be more stable than the XCHS···HCOOH counterparts, with X = H, F, Cl, Br, CH3 , NH2 . All complexes are stabilized by hydrogen bonds, and their contribution to the total stabilization energy of the complexes increases in going from C-H···S to C-H···O to O-H···S and finally to O-H···O. Remarkably, a significant blueshift of Csp2 -H bond by 81-96 cm-1 in the Csp2 -H···O hydrogen bond has hardly ever been reported, and a considerable redshift of O-H stretching frequency by 206-544 cm-1 in the O-H···O/S hydrogen bonds is also predicted. The obtained results in our present work and previous literatures support that a distance contraction and a stretching frequency blueshift of C-H bond involving hydrogen bond depend mainly on its polarity and gas phase basicity of proton acceptor, besides the rearrangement of electron density due to complex formation. Markedly, we suggest the ratio of deprotonation enthalpy to proton affinity (R c ) as an indicator to prospect for classification of hydrogen bonds. The symmetry adapted perturbation theory results show a larger role of attractive electrostatic term in XO-n as compared to that in XS-n and the electrostatic interaction is overwhelming dispersion or induction counterparts in stabilizing XO-n and XS-n, with n = 1, 2, 3. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Nguyen Tien Trung
- Laboratory of Computational Chemistry and Modelling, and Department of Chemistry, Quy Nhon University, Quy Nhon, Vietnam
| | - Pham Ngoc Khanh
- Laboratory of Computational Chemistry and Modelling, and Department of Chemistry, Quy Nhon University, Quy Nhon, Vietnam
| | - Alfredo J Palace Carvalho
- Department of Chemistry, School of Sciences and Technology, and Évora Chemistry Center, IIFA, University of Évora, Évora, Portugal
| | - Minh Tho Nguyen
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
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13
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Lobo IA, Robertson PA, Villani L, Wilson DJD, Robertson EG. Thiols as Hydrogen Bond Acceptors and Donors: Spectroscopy of 2-Phenylethanethiol Complexes. J Phys Chem A 2018; 122:7171-7180. [PMID: 30113835 DOI: 10.1021/acs.jpca.8b06649] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Evidence and understanding of sulfur-centered hydrogen bonding, especially where the donor is a thiol, lags far behind that for conventional OH interactions. To help address this deficiency, conformer specific IR spectra of 2-phenylethanethiol (PET) and associated 1:1 solvent complexes have been measured in SH, OH, and CH stretch regions using resonant-two-photon-ionization (R2PI) and IR-UV ion dip spectroscopic techniques. The aromatic and aliphatic CH stretch regions show signature differences between anti and gauche conformers. Supported by ab initio calculations, a PET-water cluster with an OH···S arrangement and a PET-diethyl ether cluster expressing an SH···O interaction were identified. The SH stretch band of the SH···O complex is red-shifted and undergoes significant intensity enhancement compared to the bare molecule, which is characteristic of hydrogen bonding. These findings offer insight into the nature of the thiol functional group as a potential hydrogen bond donor and acceptor.
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Affiliation(s)
- Isabella A Lobo
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , 3086 , Victoria Australia
| | - Patrick A Robertson
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , 3086 , Victoria Australia
| | - Luigi Villani
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , 3086 , Victoria Australia
| | - David J D Wilson
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , 3086 , Victoria Australia
| | - Evan G Robertson
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , 3086 , Victoria Australia
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14
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Torabi Farkhani E, Pourayoubi M, Izadyar M, Andreev PV, Shchegravina ES. Evaluation of N-H...S and N-H...π interactions in O,O'-diethyl N-(2,4,6-trimethylphenyl)thiophosphate: a combination of X-ray crystallographic and theoretical studies. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:847-855. [PMID: 29973424 DOI: 10.1107/s2053229618007933] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/29/2018] [Indexed: 11/11/2022]
Abstract
In the crystal structure of O,O'-diethyl N-(2,4,6-trimethylphenyl)thiophosphate, C13H22NO2PS, two symmetrically independent thiophosphoramide molecules are linked through N-H...S and N-H...π hydrogen bonds to form a noncentrosymmetric dimer, with Z' = 2. The strengths of the hydrogen bonds were evaluated using density functional theory (DFT) at the M06-2X level within the 6-311++G(d,p) basis set, and by considering the quantum theory of atoms in molecules (QTAIM). It was found that the N-H...S hydrogen bond is slightly stronger than the N-H...π hydrogen bond. This is reflected in differences between the calculated N-H stretching frequencies of the isolated molecules and the frequencies of the same N-H units involved in the different hydrogen bonds of the hydrogen-bonded dimer. For these hydrogen bonds, the corresponding charge transfers, i.e. lp (or π)→σ*, were studied, according to the second-order perturbation theory in natural bond orbital (NBO) methodology. Hirshfeld surface analysis was applied for a detailed investigation of all the contacts participating in the crystal packing.
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Affiliation(s)
- Elham Torabi Farkhani
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehrdad Pourayoubi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Izadyar
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Pavel V Andreev
- Department of Physics, Lobachevsky State University of Nizhni Novgorod, Gagarin avenue 23, Nizhni Novgorod, Russian Federation
| | - Ekaterina S Shchegravina
- Department of Chemistry, Lobachevsky State University of Nizhni Novgorod, Gagarin avenue 23, Nizhni Novgorod, Russian Federation
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15
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Juanes M, Lesarri A, Pinacho R, Charro E, Rubio JE, Enríquez L, Jaraíz M. Sulfur Hydrogen Bonding in Isolated Monohydrates: Furfuryl Mercaptan versus Furfuryl Alcohol. Chemistry 2018; 24:6564-6571. [DOI: 10.1002/chem.201705727] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Marcos Juanes
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias; Universidad de Valladolid; 47011 Valladolid Spain
| | - Alberto Lesarri
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias; Universidad de Valladolid; 47011 Valladolid Spain
| | - Ruth Pinacho
- Departamento de Electrónica, ETSIT; Universidad de Valladolid; 47011 Valladolid Spain
| | - Elena Charro
- Departamento de Didáctica CCEESSM, Facultad de Educación y Trabajo Social; Universidad de Valladolid; 47011 Valladolid Spain
| | - José E. Rubio
- Departamento de Electrónica, ETSIT; Universidad de Valladolid; 47011 Valladolid Spain
| | - Lourdes Enríquez
- Departamento de Electrónica, ETSIT; Universidad de Valladolid; 47011 Valladolid Spain
| | - Martín Jaraíz
- Departamento de Electrónica, ETSIT; Universidad de Valladolid; 47011 Valladolid Spain
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16
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Weak hydrogen bond topology in 1,1-difluoroethane dimer: A rotational study. J Chem Phys 2017; 147:094301. [DOI: 10.1063/1.4994865] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Favero LB, Li W, Spada L, Evangelisti L, Visentin G, Caminati W. The Cage Structure of Indan-CHF3 is Based on the Cooperative Effects of C-H⋅⋅⋅π and C-H⋅⋅⋅F Weak Hydrogen Bonds. Chemistry 2015; 21:15970-3. [PMID: 26388315 DOI: 10.1002/chem.201502981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Indexed: 11/08/2022]
Abstract
The structural and energetic features of the C-H⋅⋅⋅π interaction and the internal dynamics of the CHF3 group change drastically in going from benzene-CHF3 to indan-CHF3 , according to the analysis of the rotational spectrum of the latter complex generated in a supersonic expansion.
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Affiliation(s)
- Laura B Favero
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMNSezione di Bologna), CNR, via Gobetti 101, 40129 Bologna (Italy)
| | - Weixing Li
- Dipartimento di Chimica, "G. Ciamician" dell'Università, Via Selmi 2, 40126 Bologna (Italy)
| | - Lorenzo Spada
- Dipartimento di Chimica, "G. Ciamician" dell'Università, Via Selmi 2, 40126 Bologna (Italy)
| | - Luca Evangelisti
- Dipartimento di Chimica, "G. Ciamician" dell'Università, Via Selmi 2, 40126 Bologna (Italy)
| | - Giorgio Visentin
- Dipartimento di Chimica, "G. Ciamician" dell'Università, Via Selmi 2, 40126 Bologna (Italy)
| | - Walther Caminati
- Dipartimento di Chimica, "G. Ciamician" dell'Università, Via Selmi 2, 40126 Bologna (Italy).
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18
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Bhattacherjee A, Matsuda Y, Fujii A, Wategaonkar S. Acid–Base Formalism in Dispersion-Stabilized S–H···Y (Y═O, S) Hydrogen-Bonding Interactions. J Phys Chem A 2015; 119:1117-26. [DOI: 10.1021/jp511904a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Aditi Bhattacherjee
- Department
of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India
| | - Yoshiyuki Matsuda
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aoba,
Aoba-ku, Sendai 980-8578, Japan
- Institute
for Excellence in Higher Education, Tohoku University, 41 Kawauchi,
Aoba-ku, Sendai 980-8576, Japan
| | - Asuka Fujii
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aramaki-Aoba,
Aoba-ku, Sendai 980-8578, Japan
| | - Sanjay Wategaonkar
- Department
of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India
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19
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Zhang X, Zou X, Yan H. Synthesis of Boron-Fused 1,4-Dithiin via Cobalt-Mediated Disulfuration of Alkyne at the o-Carborane-9,12-dithiolate Unit. Organometallics 2014. [DOI: 10.1021/om500411b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xiaolei Zhang
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiaodong Zou
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hong Yan
- State Key Laboratory
of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
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20
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Seifert NA, Zaleski DP, Pérez C, Neill JL, Pate BH, Vallejo-López M, Lesarri A, Cocinero EJ, Castaño F, Kleiner I. Probing the CH⋅⋅⋅π Weak Hydrogen Bond in Anesthetic Binding: The Sevoflurane-Benzene Cluster. Angew Chem Int Ed Engl 2014; 53:3210-3. [DOI: 10.1002/anie.201309848] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Indexed: 11/08/2022]
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21
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Seifert NA, Zaleski DP, Pérez C, Neill JL, Pate BH, Vallejo-López M, Lesarri A, Cocinero EJ, Castaño F, Kleiner I. Probing the CH⋅⋅⋅π Weak Hydrogen Bond in Anesthetic Binding: The Sevoflurane-Benzene Cluster. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309848] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Gou Q, Feng G, Evangelisti L, Caminati W. Interaction between Freons and Amines: The C–H···N Weak Hydrogen Bond in Quinuclidine–Trifluoromethane. J Phys Chem A 2014; 118:737-40. [DOI: 10.1021/jp411893p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qian Gou
- Dipartimento di Chimica “G.
Ciamician” dell’Università, Via Selmi 2, I-40126 Bologna, Italy
| | - Gang Feng
- Dipartimento di Chimica “G.
Ciamician” dell’Università, Via Selmi 2, I-40126 Bologna, Italy
| | - Luca Evangelisti
- Dipartimento di Chimica “G.
Ciamician” dell’Università, Via Selmi 2, I-40126 Bologna, Italy
| | - Walther Caminati
- Dipartimento di Chimica “G.
Ciamician” dell’Università, Via Selmi 2, I-40126 Bologna, Italy
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23
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Spada L, Gou Q, Vallejo-López M, Lesarri A, Cocinero EJ, Caminati W. Weak C–H⋯N and C–H⋯F hydrogen bonds and internal rotation in pyridine–CH3F. Phys Chem Chem Phys 2014; 16:2149-53. [DOI: 10.1039/c3cp54430c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Li Y, Li F, Chen Z. Graphane/fluorographene bilayer: considerable C-H···F-C hydrogen bonding and effective band structure engineering. J Am Chem Soc 2012; 134:11269-75. [PMID: 22680070 DOI: 10.1021/ja3040416] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Systematic density functional theory (DFT) computations revealed the existence of considerable C-H···F-C bonding between the experimentally realized graphane and fluorographene layers. The unique C-H···F-C bonds define the conformation of graphane/fluorographene (G/FG) bilayer and contribute to its stability. Interestingly, G/FG bilayer has an energy gap (0.5 eV) much lower than those of individual graphane and fluorographene. The binding strength of G/FG bilayer can be significantly enhanced by applying appropriate external electric field (E-field). Especially, changing the direction and strength of E-field can effectively modulate the energy gap of G/FG bilayer, and correspondingly causes a semiconductor-metal transition. These findings open new opportunities in fabricating new electronics and opto-electronics devices based on G/FG bilayer, and call for more efforts in using weak interactions for band structure engineering.
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Affiliation(s)
- Yafei Li
- Department of Chemistry, Institute for Functional Nanomaterials, University of Puerto Rico, Rio Piedras Campus, San Juan, Puerto Rico 00931
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25
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26
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Feng G, Evangelisti L, Favero LB, Grabow JU, Xia Z, Caminati W. On the weak O-H···halogen hydrogen bond: a rotational study of CH3CHClF···H2O. Phys Chem Chem Phys 2011; 13:14092-6. [PMID: 21597624 DOI: 10.1039/c1cp20751b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We measured the molecular beam Fourier transform microwave spectra of six isotopologues of the 1 : 1 adduct of CH(3)CHClF with water. Water prefers to form an O-H···F rather than an O-H···Cl hydrogen bond. This is just the contrary of what was observed in the chlorofluoromethane-water adduct, where an O-H···Cl link was formed (W. Caminati, S. Melandri, A. Maris and P. Ottaviani, Angew. Chem., Int. Ed., 2006, 45, 2438). The water molecule is linked with an O-H···F bridge to the fluorine atom, with r(F···H(w)) = 2.14 Å, and with two C-H···O contacts to the alkyl hydrogens with r(C(1)-H(1)···O(w)) = 2.75 Å and r(C(2)-H(2)···O(w)) = 2.84 Å, respectively. Besides the rotational constants, the quadrupole coupling constants of the chlorine atom have been determined. In addition, information on the internal dynamics has been obtained.
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Affiliation(s)
- Gang Feng
- Department of Chemistry, University of Bologna, via Selmi 2, I-40126 Bologna, Italy.
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27
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Solimannejad M, Gharabaghi M, Scheiner S. SH···N and SH···P blue-shifting H-bonds and N···P interactions in complexes pairing HSN with amines and phosphines. J Chem Phys 2011; 134:024312. [DOI: 10.1063/1.3523580] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Melandri S. “Union is strength”: how weak hydrogen bonds become stronger. Phys Chem Chem Phys 2011; 13:13901-11. [DOI: 10.1039/c1cp20824a] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Favero L, Giuliano B, Maris A, Melandri S, Ottaviani P, Velino B, Caminati W. Features of the CH⋅⋅⋅N Weak Hydrogen Bond and Internal Dynamics in Pyridine-CHF3. Chemistry 2010; 16:1761-4. [DOI: 10.1002/chem.200902852] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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Serafin MM, Peebles SA. Microwave Spectrum, Dipole Moment, and Internal Dynamics of the Methyl Fluoride−Carbonyl Sulfide Weakly Bound Complex. J Phys Chem A 2008; 112:1473-9. [DOI: 10.1021/jp710181z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michal M. Serafin
- Department of Chemistry, Eastern Illinois University, 600 Lincoln Avenue, Charleston, Illinois 61920
| | - Sean A. Peebles
- Department of Chemistry, Eastern Illinois University, 600 Lincoln Avenue, Charleston, Illinois 61920
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31
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Cocinero EJ, Villanueva P, Lesarri A, Sanz ME, Blanco S, Mata S, López JC, Alonso JL. The shape of neutral sarcosine in gas phase. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2006.12.067] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Serafin MM, Peebles SA. Rotational spectrum and structure of the carbonyl sulfide-trifluoromethane weakly bound dimer. J Phys Chem A 2006; 110:11938-43. [PMID: 17064181 DOI: 10.1021/jp064633x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Pure rotational spectra of five isotopomers of the 1:1 weakly bound complex formed between carbonyl sulfide and trifluoromethane (TFM) have been measured using Fourier transform microwave spectroscopy. The experimental rotational constants and dipole moment components are consistent with a structure of C(s) symmetry in which the dipole moment vectors of OCS and HCF(3) are aligned antiparallel and at an angle of about 40 degrees and with a center of mass separation of 3.965(26) A. The derived H...O distance is 2.90(5) A, which is up to 0.6 A longer than is seen in other similar TFM complexes exhibiting C-H...O interactions. Ab initio calculations at the MP2/6-311++G(2d,2p) level give a structure with rotational constants that are in reasonable agreement with those of the normal isotopic species.
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Affiliation(s)
- Michal M Serafin
- Department of Chemistry, Eastern Illinois University, 600 Lincoln Avenue, Charleston, Illinois 61920, USA
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33
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López JC, Caminati W, Alonso JL. The CH⋅⋅⋅π Hydrogen Bond in the Benzene-Trifluoromethane Adduct: A Rotational Study. Angew Chem Int Ed Engl 2006; 45:290-3. [PMID: 16312007 DOI: 10.1002/anie.200503097] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Juan C López
- Grupo de Espectroscopía Molecular (GEM), Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain
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34
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López JC, Caminati W, Alonso JL. The CH⋅⋅⋅π Hydrogen Bond in the Benzene-Trifluoromethane Adduct: A Rotational Study. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503097] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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