1
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Cappelletti D, Falcinelli S, Pirani F. The dawn of hydrogen and halogen bonds and their crucial role in collisional processes probing long-range intermolecular interactions. Phys Chem Chem Phys 2024; 26:7971-7987. [PMID: 38411471 DOI: 10.1039/d3cp05871a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
This perspective review focuses on the results of an internally consistent study developed in the Perugia laboratory, centered on the fundamental interaction components that, at large intermolecular distances, determine the formation of weak intermolecular hydrogen (HB) and halogen (XB) bonds. This investigation exploits old and novel molecular beam scattering experiments involving several gaseous prototypical systems. In particular, we focus on the kinetic energy dependence of the total (elastic + inelastic) integral cross-sections. Of particular interest is the measure of quantum interference patterns in the energy dependence of cross-sections of targeted systems and their shift compared to that of known reference systems. We interpreted these findings as interaction energy stabilization components, such as charge transfer, σ-hole, and polar flattening, that emerge at intermediate separation distance ranges and selectively manifest for specific geometries of collision complexes. Another significant observable we discuss is the absolute value of the cross-section and its dependence on permanent multipole moments of the collisional partners. Specifically, we show how the spontaneous orientation of rotationally cold and polar molecules, due to the electric field gradient associated with the interaction between permanent multipole moments, can significantly modify the magnitude of the total cross-section, even at high values of the impact parameter. We are confident that the present results can help extend the force field formulation to various interacting systems and carry out molecular dynamics simulations under conditions of application interest.
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Affiliation(s)
- David Cappelletti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215 Perugia, Italy
| | - Fernando Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06123 Perugia, Italy.
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215 Perugia, Italy
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2
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Dutta J, Sahu AK, Bhadauria AS, Biswal HS. Carbon-Centered Hydrogen Bonds in Proteins. J Chem Inf Model 2022; 62:1998-2008. [PMID: 35293733 DOI: 10.1021/acs.jcim.2c00015] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hydrogen bonding (H-bonding) without lone pair(s) of electrons and π-electrons is a concept developed 2-3 years ago. H-bonds involving less electronegative tetrahedral carbon are beyond the classical concept of H-bonds. Herein, we present the first report on H-bonds with tetravalent carbons in proteins. A special bonding arrangement is needed to increase the negative charge density around the sp3-hybridized carbon atom. Therefore, less electronegative elements such as As and Mg, when bonded to sp3-C, enable the C-atoms as H-bond acceptors. Careful protein structure analysis aided by several quantum chemical calculations suggests that these H-bonds are weak to moderate in strength. We developed an empirical equation to estimate the C-H···C H-bond energy in proteins from the distances between the C- and H-atoms. In proteins, the binding energies range from -5.4 to -14.0 kJ/mol. The C-H···C H-bonds assist the substrate binding in proteins. We also explored the potential role of these carbon-centered H-bonds in C-H bond activation through σ-bond metathesis. To our surprise, contribution from these H-bonds is almost of similar magnitude as that from C-H···π H-bonds for C-H bond activation.
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Affiliation(s)
- Juhi Dutta
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhimpur-Padanpur, Via-Jatni, Khurda, Bhubaneswar 752050, India.,Training School Complex, Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - Akshay Kumar Sahu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhimpur-Padanpur, Via-Jatni, Khurda, Bhubaneswar 752050, India.,Training School Complex, Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - Abhijeet S Bhadauria
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhimpur-Padanpur, Via-Jatni, Khurda, Bhubaneswar 752050, India.,Training School Complex, Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - Himansu S Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhimpur-Padanpur, Via-Jatni, Khurda, Bhubaneswar 752050, India.,Training School Complex, Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
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3
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Methyl groups as widespread Lewis bases in noncovalent interactions. Nat Commun 2021; 12:5030. [PMID: 34413293 PMCID: PMC8376930 DOI: 10.1038/s41467-021-25314-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/29/2021] [Indexed: 11/08/2022] Open
Abstract
It is well known that, under certain conditions, C(sp3) atoms behave, via their σ-hole, as Lewis acids in tetrel bonding. Here, we show that methyl groups, when bound to atoms less electronegative than carbon, can counterintuitively participate in noncovalent interactions as electron density donors. Thousands of experimental structures are found in which methyl groups behave as Lewis bases to establish alkaline, alkaline earth, triel, tetrel, pnictogen, chalcogen and halogen bonds. Theoretical calculations confirm the high directionality and significant strength of the interactions that arise from a common pattern based on the electron density holes model. Moreover, despite the absence of lone pairs, methyl groups are able to transfer charge from σ bonding orbitals into empty orbitals of the electrophile to reinforce the attractive interaction.
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4
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Mooibroek TJ. DFT and IsoStar Analyses to Assess the Utility of σ- and π-Hole Interactions for Crystal Engineering. Chemphyschem 2021; 22:141-153. [PMID: 33241585 PMCID: PMC7898519 DOI: 10.1002/cphc.202000927] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 11/25/2020] [Indexed: 11/25/2022]
Abstract
The interpretation of 36 charge neutral 'contact pairs' from the IsoStar database was supported by DFT calculations of model molecules 1-12, and bimolecular adducts thereof. The 'central groups' are σ-hole donors (H2 O and aromatic C-I), π-hole donors (R-C(O)Me, R-NO2 and R-C6 F5 ) and for comparison R-C6 H5 (R=any group or atom). The 'contact groups' are hydrogen bond donors X-H (X=N, O, S, or R2 C, or R3 C) and lone-pair containing fragments (R3 C-F, R-C≡N and R2 C=O). Nearly all the IsoStar distributions follow expectations based on the electrostatic potential of the 'central-' and 'contact group'. Interaction energies (ΔEBSSE ) are dominated by electrostatics (particularly between two polarized molecules) or dispersion (especially in case of large contact area). Orbital interactions never dominate, but could be significant (∼30 %) and of the n/π→σ*/π* kind. The largest degree of directionality in the IsoStar plots was typically observed for adducts more stable than ΔEBSSE ≈-4 kcal⋅mol-1 , which can be seen as a benchmark-value for the utility of an interaction in crystal engineering. This benchmark could be met with all the σ- and π-hole donors studied.
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Affiliation(s)
- Tiddo Jonathan Mooibroek
- van ‘t Hoff Institute for Molecular SciencesUniversiteit van Amsterdam, Science Park 9041098 XHAmsterdamThe Netherlands
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5
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Dutta J, Sahoo DK, Jena S, Tulsiyan KD, Biswal HS. Non-covalent interactions with inverted carbon: a carbo-hydrogen bond or a new type of hydrogen bond? Phys Chem Chem Phys 2020; 22:8988-8997. [DOI: 10.1039/d0cp00330a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Crystal structure analysis and quantum chemical calculations enabled us to discover a new non-covalent interaction, coined as carbo-hydrogen bond (CH-bond).
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Affiliation(s)
- Juhi Dutta
- National Institute of Science Education and Research (NISER) PO-Bhimpur-Padanpur
- Bhubaneswar
- India
- Homi Bhaba National Institute
- Training School Complex Anushakti Nagar
| | - Dipak Kumar Sahoo
- National Institute of Science Education and Research (NISER) PO-Bhimpur-Padanpur
- Bhubaneswar
- India
- Homi Bhaba National Institute
- Training School Complex Anushakti Nagar
| | - Subhrakant Jena
- National Institute of Science Education and Research (NISER) PO-Bhimpur-Padanpur
- Bhubaneswar
- India
- Homi Bhaba National Institute
- Training School Complex Anushakti Nagar
| | - Kiran Devi Tulsiyan
- National Institute of Science Education and Research (NISER) PO-Bhimpur-Padanpur
- Bhubaneswar
- India
- Homi Bhaba National Institute
- Training School Complex Anushakti Nagar
| | - Himansu S. Biswal
- National Institute of Science Education and Research (NISER) PO-Bhimpur-Padanpur
- Bhubaneswar
- India
- Homi Bhaba National Institute
- Training School Complex Anushakti Nagar
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6
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Jiang LT, Bai PK, Ren FD, Wang JH, Liu B, Li YX. Theoretical evaluation to improve the performance of composite wax powder: cooperativity effects involving the strong Na+···π/σ and weak hydrogen-bonding interactions in the complex of graphene oxide with Na+ and CH4. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1612106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Le-tao Jiang
- School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
- College of Gem and Material Technology, Hebei Geo University, Shijiazhuang, People’s Republic of China
| | - Pei-kang Bai
- School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Fu-de Ren
- School of Chemical Engineering and Technology, North University of China, Taiyuan, People’s Republic of China
| | - Jian-hong Wang
- School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Bin Liu
- School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Yu-xin Li
- School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
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7
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Pirani F, Cappelletti D, Falcinelli S, Cesario D, Nunzi F, Belpassi L, Tarantelli F. Selective Emergence of the Halogen Bond in Ground and Excited States of Noble‐Gas–Chlorine Systems. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fernando Pirani
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
| | - David Cappelletti
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed AmbientaleUniversità degli Studi di Perugia via G. Duranti 93 06215 Perugia Italy
| | - Diego Cesario
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Center for Multiscale ModelingVrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam The Netherlands
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e BiotecnologieUniversità degli Studi di Perugia via Elce di Sotto 8 06213 Perugia Italy
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR) via Elce di Sotto 8 06123 Perugia Italy
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8
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Pirani F, Cappelletti D, Falcinelli S, Cesario D, Nunzi F, Belpassi L, Tarantelli F. Selective Emergence of the Halogen Bond in Ground and Excited States of Noble-Gas-Chlorine Systems. Angew Chem Int Ed Engl 2019; 58:4195-4199. [PMID: 30701641 DOI: 10.1002/anie.201812889] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/10/2019] [Indexed: 11/07/2022]
Abstract
Molecular-beam scattering experiments and theoretical calculations prove the nature, strength, and selectivity of the halogen bonds (XB) in the interaction of halogen molecules with the series of noble gas (Ng) atoms. The XB, accompanied by charge transfer from the Ng to the halogen, is shown to take place in, and measurably stabilize, the collinear conformation of the adducts, which thus becomes (in contrast to what happens for other Ng-molecule systems) approximately as bound as the T-shaped form. It is also shown how and why XB is inhibited when the halogen molecule is in the 3 Πu excited state. A general potential formulation fitting the experimental observables, based on few physically essential parameters, is proposed to describe the interaction accurately and is validated by ab initio computations.
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Affiliation(s)
- Fernando Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy
| | - David Cappelletti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy
| | - Stefano Falcinelli
- Dipartimento di Ingegneria Civile ed Ambientale, Università degli Studi di Perugia, via G. Duranti 93, 06215, Perugia, Italy
| | - Diego Cesario
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Department of Chemistry and Pharmaceutical Sciences and Amsterdam Center for Multiscale Modeling, Vrije Universiteit Amsterdam, De Boelelaan 1083, 1081, HV, Amsterdam, The Netherlands
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8, 06213, Perugia, Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR), via Elce di Sotto 8, 06123, Perugia, Italy
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9
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Grein F. Ab initio studies of the van der Waals complex CH4–O2. CH···O and CX···O interactions in halomethane X
n
CH4−n–O2 complexes (X = F, Cl; n = 1, 2, 3). Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2250-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Baggioli A. Noncovalent Interactions Descriptor Based on the Source Function of Individual Localized Molecular Orbitals in Whole Space. J Phys Chem A 2018; 122:3850-3857. [DOI: 10.1021/acs.jpca.7b08774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alberto Baggioli
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italia
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11
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De Santis M, Nunzi F, Cesario D, Belpassi L, Tarantelli F, Cappelletti D, Pirani F. Cooperative role of halogen and hydrogen bonding in the stabilization of water adducts with apolar molecules. NEW J CHEM 2018. [DOI: 10.1039/c8nj00552d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conversely to the H2O–CF4 adduct, an appreciable intermolecular bond stabilization by charge transfer is operative in the H2O–CCl4 system.
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Affiliation(s)
- Matteo De Santis
- Dipartimento di Chimica
- Biologia e Biotecnologie
- I-06123 Perugia
- Italy
| | - Francesca Nunzi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR)
- I-06123 Perugia
- Italy
- Dipartimento di Chimica
- Biologia e Biotecnologie
| | - Diego Cesario
- Dipartimento di Chimica
- Biologia e Biotecnologie
- I-06123 Perugia
- Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR)
- I-06123 Perugia
- Italy
- Consortium for Computational Molecular and Materials Sciences (CMS)2
- I-06123 Perugia
| | - Francesco Tarantelli
- Istituto di Scienze e Tecnologie Molecolari del CNR (ISTM-CNR)
- I-06123 Perugia
- Italy
- Dipartimento di Chimica
- Biologia e Biotecnologie
| | | | - Fernando Pirani
- Dipartimento di Chimica
- Biologia e Biotecnologie
- I-06123 Perugia
- Italy
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12
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Two kinds of X H⋯C(sp 3 ) hydrogen bond formed by the methide anion: Syn- and anti- orientation of monomers. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Rivera-Arrieta HI, Turney JM, Schaefer HF. Structural Distortions Accompanying Noncovalent Interactions: Methane–Water, the Simplest C–H Hydrogen Bond. J Chem Theory Comput 2017; 13:1478-1485. [DOI: 10.1021/acs.jctc.6b01008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Herzain I. Rivera-Arrieta
- Instituto
de Física, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
- Center
for Computational Quantum Chemistry, Department of Chemistry, The University of Georgia, Athens, Georgia 30602-2556, United States
| | - Justin M. Turney
- Center
for Computational Quantum Chemistry, Department of Chemistry, The University of Georgia, Athens, Georgia 30602-2556, United States
| | - Henry F. Schaefer
- Center
for Computational Quantum Chemistry, Department of Chemistry, The University of Georgia, Athens, Georgia 30602-2556, United States
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14
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Baggioli A, Meille SV, Famulari A. Nucleophilicity and electrophilicity of the C(sp 3)–H bond: methane and ethane binary complexes with iodine. Phys Chem Chem Phys 2017; 19:24555-24565. [DOI: 10.1039/c7cp03488a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cooperativity is key to the ability of saturated hydrocarbons to act both as nucleophilic and electrophilic centres.
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Affiliation(s)
- Alberto Baggioli
- Dipartimento di Chimica
- Materiali e Ingegneria Chimica “G. Natta”
- Politecnico di Milano
- I-20131 Milano
- Italy
| | - Stefano V. Meille
- Dipartimento di Chimica
- Materiali e Ingegneria Chimica “G. Natta”
- Politecnico di Milano
- I-20131 Milano
- Italy
| | - Antonino Famulari
- Dipartimento di Chimica
- Materiali e Ingegneria Chimica “G. Natta”
- Politecnico di Milano
- I-20131 Milano
- Italy
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15
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Kawashima Y, Suenram RD, Hirota E. Microwave spectra of the SiH4-H2O complex: A new sort of intermolecular interaction. J Chem Phys 2016. [DOI: 10.1063/1.4962363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yoshiyuki Kawashima
- Department of Applied Chemistry, Kanagawa Institute of Technology, Atsugi, Kanagawa 243-0292, Japan
| | - Richard D. Suenram
- Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Eizi Hirota
- The Graduate University for Advanced Studies, Hayama, Kanagawa 240-0193, Japan
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16
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Isaev AN. Intermolecular charge transfer as evidence for unusual O–H⋯C(sp3) hydrogen bond. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.06.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Alekseev VA, Garcia GA, Kevorkyants R, Nahon L. Photoionisation study of Xe.CF 4 and Kr.CF 4 van-der-Waals molecules. J Chem Phys 2016; 144:184305. [DOI: 10.1063/1.4948632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Cappelletti D, Aquilanti V, Bartocci A, Nunzi F, Tarantelli F, Belpassi L, Pirani F. Interaction of O2 with CH4, CF4, and CCl4 by Molecular Beam Scattering Experiments and Theoretical Calculations. J Phys Chem A 2016; 120:5197-207. [PMID: 26938313 DOI: 10.1021/acs.jpca.6b00948] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gas phase collisions of O2 by CH4, CF4, and CCl4 have been investigated with the molecular beam technique by measuring both the integral cross section value, Q, and its dependence on the collision velocity, v. The adopted experimental conditions have been appropriate to resolve the oscillating "glory" pattern, a quantum interference effect controlled by the features of the intermolecular interaction, for all the three case studies. The analysis of the Q(v) data, performed by adopting a suitable representation of the intermolecular potential function, provided the basic features of the anisotropic potential energy surfaces at intermediate and large separation distances and information on the relative role of the physically relevant types of contributions to the global interaction. The present work demonstrates that while O2-CH4 and O2-CF4 are basically bound through the balance between size (Pauli) repulsion and dispersion attraction, an appreaciable intermolecular bond stabilization by charge transfer is operative in O2-CCl4. Ab initio calculations of the strength of the interaction, coupled with detailed analysis of electronic charge displacement promoted by the formation of the dimer, fully rationalizes the experimental findings. This investigation indicates that the interactions of O2, when averaged over its relative orientations, are similar to that of a noble gas (Ng), specifically Ar. We also show that the binding energy in the basic configurations of the prototypical Ng-CF4,CCl4 systems [ Cappelletti , D. ; Chem. Eur. J. 2015 , 21 , 6234 - 6240 ] can be reconstructed by using the interactions in Ng-F and Ng-Cl systems, previously characterized by molecular beam scattering experiments of state-selected halogen atom beams. This information is fundamental to approach the modeling of the weak intermolecular halogen bond. On the basis of the electronic polarizability, this also confirms [ Aquilanti , V. ; Angew. Chem., Int. Ed. 2005 , 44 , 2356 - 2360 ] that O2 can be taken as a proper reference partner for simulating the behavior of some basic noncovalent components of the interactions involving water. Present results are of fundamental relevance to build up the force field controlling the hydrophobic behavior of prototypical apolar CX4 (X = H, F, Cl) molecules.
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Affiliation(s)
- David Cappelletti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Vincenzo Aquilanti
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Alessio Bartocci
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Francesca Nunzi
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy.,CNR-Istituto di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy.,CNR-Istituto di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Leonardo Belpassi
- CNR-Istituto di Scienze e Tecnologie Molecolari, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Fernando Pirani
- Dipartimento di Chimica, Biologia e Biotecnologie, Università di Perugia , Via Elce di Sotto 8, 06123 Perugia, Italy
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Bartocci A, Frati F, Roncaratti LF, Cappelletti D, Tarantelli F, Belpassi L, Pirani F. Anab initioelectronic density study of the CH4–Ar, CH4–Xe, CH4–H2O and CH4–H2S complexes: insights into the nature of the intermolecular interaction. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1100344] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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