1
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Phase behavior and molecular insights on the separation of dimethyl carbonate and methanol azeotrope by extractive distillation using deep eutectic solvents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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2
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Kenouche S, Martínez-Araya JI. A combined QTAIM/IRI topological analysis of the effect of axial/equatorial positions of NH 2 and CN substituents in the [(PY 5Me 2)MoO] + complex. J Mol Graph Model 2022; 116:108273. [PMID: 35930821 DOI: 10.1016/j.jmgm.2022.108273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/09/2022] [Accepted: 07/08/2022] [Indexed: 12/15/2022]
Abstract
By means of the Interaction Region Indicator (IRI) and Quantum Theory of Atoms in Molecules (QTAIM), the influence exerted by NH2 (amino) and CN (cyano) as electron donor and electron acceptor substituent groups, respectively, located at para-positions of axial and equatorial pyridine rings of derivatized complexes coming from the [(PY5Me2)MoO]+ complex during the hydrogen molecular release in the gas phase was analyzed. In any case, a H-H covalent bond is forming at the transition state, with a strengthening of the electron density of 5.5% when the substituent group involved is NH2 at the para-position of the axial pyridine ring. However, there was no difference between NH2 and CN when these substituent groups are located at the para-positions of the equatorial pyridine rings. The topological properties of electron densities from the QTAIM are not perturbed by the electron donor and electron acceptor nature of the substituents, even when these substituent groups are located at the axial or equatorial pyridine rings of the Mo-based complex.
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Affiliation(s)
- Samir Kenouche
- Group of Modeling of Chemical Systems Using Quantum Calculations, Applied Chemistry Laboratory (LCA), University M. Khider of Biskra, 07000 Biskra, Algeria
| | - Jorge I Martínez-Araya
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello (UNAB), Av. República 275, 8370146, Santiago, Chile.
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3
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Kuznetsov ML. Strength of the [Z-I···Hal] - and [Z-Hal···I] - Halogen Bonds: Electron Density Properties and Halogen Bond Length as Estimators of Interaction Energy. Molecules 2021; 26:2083. [PMID: 33916483 PMCID: PMC8038634 DOI: 10.3390/molecules26072083] [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: 02/26/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 11/29/2022] Open
Abstract
Bond energy is the main characteristic of chemical bonds in general and of non-covalent interactions in particular. Simple methods of express estimates of the interaction energy, Eint, using relationships between Eint and a property which is easily accessible from experiment is of great importance for the characterization of non-covalent interactions. In this work, practically important relationships between Eint and electron density, its Laplacian, curvature, potential, kinetic, and total energy densities at the bond critical point as well as bond length were derived for the structures of the [Z-I···Hal]- and [Z-Hal···I]- types bearing halogen bonds and involving iodine as interacting atom(s) (totally 412 structures). The mean absolute deviations for the correlations found were 2.06-4.76 kcal/mol.
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Affiliation(s)
- Maxim L. Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal; ; Tel.: +351-218-419-236
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russia
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4
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A Computational Study of Metallacycles Formed by Pyrazolate Ligands and the Coinage Metals M = Cu(I), Ag(I) and Au(I): (pzM) n for n = 2, 3, 4, 5 and 6. Comparison with Structures Reported in the Cambridge Crystallographic Data Center (CCDC). Molecules 2020; 25:molecules25215108. [PMID: 33153197 PMCID: PMC7663606 DOI: 10.3390/molecules25215108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/12/2022] Open
Abstract
The structures reported in the Cambridge Structural Database (CSD) for neutral metallacycles formed by coinage metals in their valence (I) (cations) and pyrazolate anions were examined. Depending on the metal, dimers and trimers are the most common but some larger rings have also been reported, although some of the larger structures are not devoid of ambiguity. M06-2x calculations were carried out on simplified structures (without C-substituents on the pyrazolate rings) in order to facilitate a comparison with the reported X-ray structures (geometries and energies). The problems of stability of the different ring sizes were also analyzed.
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5
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Kuznetsov ML. Relationships between Interaction Energy and Electron Density Properties for Homo Halogen Bonds of the [(A) nY-X···X-Z(B) m] Type (X = Cl, Br, I). Molecules 2019; 24:E2733. [PMID: 31357615 PMCID: PMC6695802 DOI: 10.3390/molecules24152733] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/16/2019] [Accepted: 07/25/2019] [Indexed: 01/31/2023] Open
Abstract
Relationships between interaction energy (Eint) and electron density properties at the X···X bond critical point or the d(X···X) distance were established for the large set of structures [(A)nY-X···X-Z(B)m] bearing the halogen bonds Cl···Cl, Br···Br, and I···I (640 structures in total). The best estimator of Eint is the kinetic energy density (Gb), which reasonably approximates the whole set of the structures as -Eint = 0.128Gb2 - 0.82Gb + 1.66 (R2 = 0.91, mean absolute deviation 0.39 kcal/mol) and demonstrates low dispersion. The potential and kinetic energy densities, electron density, and the d(X···X) distance behave similarly as estimators of Eint for the individual series Cl···Cl, Br···Br, and I···I. A number of the Eint(property) correlations are recommended for the practical application in the express estimates of the strength of the homo-halogen bonds.
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Affiliation(s)
- Maxim L Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal.
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6
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Bezzina B, Djemil R, Bensouilah N. Quantitative and qualitative analyses of intermolecular interactions in neutral/deprotonated aspirin@β-CD inclusion complexes: QTAIM and NBO analyses. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2429-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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7
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8
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Correlations of NBO energies of individual hydrogen bonds in nucleic acid base pairs with some QTAIM parameters. Struct Chem 2015. [DOI: 10.1007/s11224-015-0724-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Zhang J, Dolg M. Labile Capping Bonds in Lanthanide(III) Complexes: Shorter and Weaker. J Phys Chem A 2015; 119:774-80. [DOI: 10.1021/jp511043c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jun Zhang
- Institute for Theoretical
Chemistry, University of Cologne, Greinstraße 4, D-50939 Cologne, Germany
| | - Michael Dolg
- Institute for Theoretical
Chemistry, University of Cologne, Greinstraße 4, D-50939 Cologne, Germany
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10
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Guillaumes L, Simon S. Dealing with Quasi-Ring Formation by Two Hydrogen Bonds. Cooperativity Analysis with Delocalization Indices. J Phys Chem A 2014; 118:9727-33. [DOI: 10.1021/jp507133n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L. Guillaumes
- Institut de Química
Computacional i Catàlisis (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain
| | - S. Simon
- Institut de Química
Computacional i Catàlisis (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain
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11
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Fabiano E, Constantin LA, Della Sala F. Wave Function and Density Functional Theory Studies of Dihydrogen Complexes. J Chem Theory Comput 2014; 10:3151-62. [PMID: 26588286 DOI: 10.1021/ct500350n] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We performed a benchmark study on a series of dihydrogen bond complexes and constructed a set of reference bond distances and interaction energies. The test set was employed to assess the performance of several wave function correlated and density functional theory methods. We found that second-order correlation methods describe relatively well the dihydrogen complexes. However, for high accuracy inclusion of triple contributions is important. On the other hand, none of the considered density functional methods can simultaneously yield accurate bond lengths and interaction energies. However, we found that improved results can be obtained by the inclusion of nonlocal exchange contributions.
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Affiliation(s)
- E Fabiano
- National Nanotechnology Laboratory (NNL), Istituto Nanoscienze-CNR , Via per Arnesano 16, 73100 Lecce, Italy.,Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia (IIT) , Via Barsanti, 73010 Arnesano, LE, Italy
| | - L A Constantin
- Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia (IIT) , Via Barsanti, 73010 Arnesano, LE, Italy
| | - F Della Sala
- National Nanotechnology Laboratory (NNL), Istituto Nanoscienze-CNR , Via per Arnesano 16, 73100 Lecce, Italy.,Center for Biomolecular Nanotechnologies @UNILE, Istituto Italiano di Tecnologia (IIT) , Via Barsanti, 73010 Arnesano, LE, Italy
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12
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Zhang J, Heinz N, Dolg M. Understanding Lanthanoid(III) Hydration Structure and Kinetics by Insights from Energies and Wave functions. Inorg Chem 2014; 53:7700-8. [DOI: 10.1021/ic500991x] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jun Zhang
- Institute for Theoretical
Chemistry, University of Cologne, Greinstr. 4, D-50939 Cologne, Germany
| | - Norah Heinz
- Institute for Theoretical
Chemistry, University of Cologne, Greinstr. 4, D-50939 Cologne, Germany
| | - Michael Dolg
- Institute for Theoretical
Chemistry, University of Cologne, Greinstr. 4, D-50939 Cologne, Germany
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13
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Mebs S, Chilleck MA, Meindl K, Hübschle CB. Fundamental relation between molecular geometry and real-space topology. Combined AIM, ELI-D, and ASF analysis of hapticities and intramolecular hydrogen-hydrogen bonds in zincocene-related compounds. J Phys Chem A 2014; 118:4351-62. [PMID: 24856733 DOI: 10.1021/jp503667g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Despite numerous advanced and widely distributed bonding theories such as MO, VB, NBO, AIM, and ELF/ELI-D, complex modes of bonding such as M-Cp*((R)) interactions (hapticities) in asymmetrical metallocenes or weak intramolecular interactions (e.g., hydrogen-hydrogen (H···H) bonds) still remain a challenge for these theories in terms of defining whether or not an atom-atom interaction line (a "chemical bond") should be drawn. In this work the intramolecular Zn-C(Cp*(R)) (R = Me, -(CH2)2NMe2, and -(CH2)3NMe2) and H···H connectivity of a systematic set of 12 zincocene-related compounds is analyzed in terms of AIM and ELI-D topology combined with the recently introduced aspherical stockholder fragment (ASF) surfaces. This computational analysis unravels a distinct dependency of the AIM and ELI-D topology against the molecular geometry for both types of interactions, which confirms and extends earlier findings on smaller sets of compounds. According to these results the complete real-space topology including strong, medium, and weak interactions of very large compounds such as proteins may be reliably predicted by sole inspection of accurately determined molecular geometries, which would on the one hand afford new applications (e.g., accurate estimation of numbers, types, and strengths of intra- and intermolecular interactions) and on the other hand have deep implications on the significance of the method.
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Affiliation(s)
- Stefan Mebs
- Department of Experimental Physics, Freie Universität Berlin , Arnimallee 14, D-14195 Berlin, Germany
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14
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Guillaumes L, Salvador P, Simon S. A fuzzy-atom analysis of electron delocalization on hydrogen bonds. J Phys Chem A 2014; 118:1142-9. [PMID: 24444143 DOI: 10.1021/jp4119869] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The extent of electron delocalization is quantified for set of cyclic complexes exhibiting two or more hydrogen bonds (HBs). In particular, the delocalization index (DI) between the atoms directly involved in the HB, and the ING (a normalized n-center delocalization index) have been evaluated using several fuzzy-atom schemes, namely Becke, Becke-ρ, Hirshfeld, and Hirshfeld-Iterative. The results have been compared with the widely used Quantum Theory of Atoms in Molecules (QTAIM) atomic definition. The DI values are found to correlate very well with geometrical or topological descriptors widely used in the literature to characterize HB systems. Among all fuzzy-atom methods, the ones that can better accommodate the different partial ionic character of the bonds perform particularly well. The best performing fuzzy-atom scheme for both pairwise and n-center electron delocalization is found to be the Becke-ρ method, for which similar results to QTAIM model are obtained with a much reduced computational cost. These results open up a wide range of applications of such electron delocalization descriptors based on fuzzy-atoms for noncovalent interactions in more complex and larger systems.
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Affiliation(s)
- L Guillaumes
- Institut de Química Computacional i Catàlisis (IQCC) and Departament de Química, Universitat de Girona , Campus de Montilivi, E-17071 Girona, Catalonia, Spain
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15
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Geometry versus topology: Combined AIM, ELI-D, and ASF analysis of weak intramolecular interactions. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2013.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Abstract
IR intensities in the spectra of H-complexes as a source of electron-density data ρ(rc) (e a−3) = 10−2(ΔA1/2) (A, 10−4 cm mmol−1/2).
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Affiliation(s)
- M. Rozenberg
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem, Israel
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17
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Oliveira BG, Costa TF, Araújo RCMU. A new theoretical analysis of the cooperative effect in T-shaped hydrogen complexes of CnHm∙∙∙HCN∙∙∙HW with n = 2, m = 2 or 4, and W = F or CN. J Mol Model 2013; 19:3551-68. [DOI: 10.1007/s00894-013-1867-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 04/23/2013] [Indexed: 11/30/2022]
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18
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Modulating weak intramolecular interactions through the formation of beryllium bonds: complexes between squaric acid and BeH2. J Mol Model 2012; 19:2759-66. [PMID: 23053013 DOI: 10.1007/s00894-012-1603-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 09/21/2012] [Indexed: 10/27/2022]
Abstract
The electronic structure of the two most stable isomers of squaric acid and their complexes with BeH2 were investigated at the B3LYP/6-311 + G(3df,2p)// B3LYP/6-31 + G(d,p) level of theory. Squaric acid forms rather strong beryllium bonds with BeH2, with binding energies of the order of 60 kJ mol(-1). The preferential sites for BeH2 attachment are the carbonyl oxygen atoms, but the global minima of the potential energy surfaces of both EZ and ZZ isomers are extra-stabilized through the formation of a BeH···HO dihydrogen bond. More importantly, analysis of the electron density of these complexes shows the existence of significant cooperative effects between the beryllium bond and the dihydrogen bond, with both becoming significantly reinforced. The charge transfer involved in the formation of the beryllium bond induces a significant electron density redistribution within the squaric acid subunit, affecting not only the carbonyl group interacting with the BeH2 moiety but significantly increasing the electron delocalization within the four membered ring. Accordingly the intrinsic properties of squaric acid become perturbed, as reflected in its ability to self-associate.
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19
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Hugas D, Guillaumes L, Duran M, Simon S. Delocalization indices for non-covalent interaction: Hydrogen and DiHydrogen bond. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Stasyuk OA, Szatyłowicz H, Krygowski TM. Effect of the H-bonding on aromaticity of purine tautomers. J Org Chem 2012; 77:4035-45. [PMID: 22448684 DOI: 10.1021/jo300406r] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four tautomers of purine (1-H, 3-H, 7-H, and 9-H) and their equilibrium H-bonded complexes with F(-) and HF for acidic and basic centers, respectively, were optimized by means of the B3LYP/6-311++G(d,p) level of theory. Purine tautomer stability increases in the following series: 1-H < 3-H < 7-H < 9-H, consistent with increasing aromaticity. Furthermore, the presence of a hydrogen bond with HF does not change this order. For neutral H-bonded complexes, the strongest and the weakest intermolecular interactions occur (-14.12 and -10.49 kcal/mol) for less stable purine tautomers when the proton acceptor is located in the five- and six-membered rings, respectively. For 9-H and 7-H tautomers the order is reversed. The H-bond energy for the imidazole complex with HF amounts to -14.03 kcal/mol; hence, in the latter case, the fusion of imidazole to pyrimidine decreases its basicity. The ionic H-bonds of N(-)···HF type are stronger by ~10 kcal/mol than the neutral N···HF intermolecular interactions. The hydrogen bond N(-)···HF energies in pyrrole and imidazole are -32.28 and -30.03 kcal/mol, respectively, and are substantially stronger than those observed in purine complexes. The aromaticity of each individual ring and of the whole molecule for all tautomers in ionic complexes is very similar to that observed for the anion of purine. This is not the case for neutral complexes and purine as a reference. The N···HF bonds perturb much more the π-electron structure of five-membered rings than that of the six-membered ones. The H-bonding complexes for 7-H and 9-H tautomers are characterized by higher aromaticity and a much lower range of HOMA variability.
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Affiliation(s)
- Olga A Stasyuk
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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21
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Mitoraj MP. Bonding in Ammonia Borane: An Analysis Based on the Natural Orbitals for Chemical Valence and the Extended Transition State Method (ETS-NOCV). J Phys Chem A 2011; 115:14708-16. [DOI: 10.1021/jp209712s] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mariusz Paweł Mitoraj
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Cracow, Poland
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22
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D'Oria E, Novoa JJ. Cation-anion hydrogen bonds: a new class of hydrogen bonds that extends their strength beyond the covalent limit. A theoretical characterization. J Phys Chem A 2011; 115:13114-23. [PMID: 21942671 DOI: 10.1021/jp205176e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The existence of O-H···O hydrogen bonds having a strength within the -80 to -210 kcal/mol range, that is, in the range of strength of covalent bonds and well beyond the so-called covalent limit (-50 kcal/mol), is reported on complexes where the O-H proton donor and O acceptor groups are located in ions of opposite sign. A complete analysis of short distance O-H···O hydrogen bonds between charged fragments was performed for cases where the OH and O groups are both located on charged molecules. It shows that these interactions (a) are nonsymmetrical for the O-H and H···O distances, (b) have a noncovalent H···O bond critical point, and (c) have a strong and energetically stable electrostatic component when the OH and O groups are located in oppositely charged molecules. These cation-anion O-H···O interactions are energetically stable, satisfy the usual topology for hydrogen bonds, HBs, and also have the same directionality found in other HBs. Therefore, they should be considered as a new class of HBs, the cation-anion hydrogen bonds.
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Affiliation(s)
- Emiliana D'Oria
- Departament de Química Física, and IQTCUB, Facultat de Química, Universitat de Barcelona, Barcelona, Spain
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23
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Mebs S, Kalinowski R, Grabowsky S, Förster D, Kickbusch R, Justus E, Morgenroth W, Paulmann C, Luger P, Gabel D, Lentz D. Charge Transfer via the Dative N−B Bond and Dihydrogen Contacts. Experimental and Theoretical Electron Density Studies of Four Deltahedral Boranes. J Phys Chem A 2011; 115:1385-95. [DOI: 10.1021/jp109576a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Mebs
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Roman Kalinowski
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Simon Grabowsky
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Diana Förster
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Rainer Kickbusch
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Eugen Justus
- Institut für Chemie und Biochemie/Fachbereich 2, Universität Bremen, Leobener Strasse, 28359 Bremen, Germany
| | - Wolfgang Morgenroth
- Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J.W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany
| | - Carsten Paulmann
- Mineralogisch-Petrographisches Institut, Universität Hamburg, Grindelallee 48, 20146 Hamburg, Germany
| | - Peter Luger
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
| | - Detlef Gabel
- Institut für Chemie und Biochemie/Fachbereich 2, Universität Bremen, Leobener Strasse, 28359 Bremen, Germany
| | - Dieter Lentz
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36 and 36a, 14195 Berlin, Germany
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24
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Mebs S, Grabowsky S, Förster D, Kickbusch R, Hartl M, Daemen LL, Morgenroth W, Luger P, Paulus B, Lentz D. Charge Transfer via the Dative N−B Bond and Dihydrogen Contacts. Experimental and Theoretical Electron Density Studies of Small Lewis Acid−Base Adducts. J Phys Chem A 2010; 114:10185-96. [DOI: 10.1021/jp100995n] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Mebs
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Simon Grabowsky
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Diana Förster
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Rainer Kickbusch
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Monika Hartl
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Luke L. Daemen
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Wolfgang Morgenroth
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Peter Luger
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Beate Paulus
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
| | - Dieter Lentz
- Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 36a, 14195 Berlin, Germany, Institut für Chemie und Biochemie/Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany, LANSCE, Los Alamos National Laboratory, Los Alamos, New Mexico, Institut für Geowissenschaften, Facheinheit Mineralogie/Abt. Kristallographie, J. W. Goethe Universität, Altenhöferallee 1, 60438 Frankfurt, Germany, Institut für Chemie und Biochemie/Physikalische
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Hugas D, Simon S, Duran M, Fonseca Guerra C, Bickelhaupt FM. Dihydrogen bonding: donor-acceptor bonding (AH...HX) versus the H2 molecule (A-H2-X). Chemistry 2009; 15:5814-22. [PMID: 19388032 DOI: 10.1002/chem.200802641] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dihydrogen bonds (DHBs) play a role in, among others, crystal packing, organometallic reaction mechanisms, and potential hydrogen-storage materials. In this work we have analyzed the central H-H bond in linear H(4), LiH...HX, BH(4)(-)...HX, and AlH(4)(-)...HX complexes with various X by using the quantitative molecular orbital model contained in Kohn-Sham density functional theory at the BP86/TZ2P level of theory. First, we address the questions of if and how one can distinguish, in principle, between a H...H donor-acceptor DHB and the formation of an H(2) molecule by using the simple H(4) model system. The results of these analyses have been used to gain an understanding of the bonding in more realistic model systems (some of which have been studied experimentally), and how this differs from the bonding in H(4).
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Affiliation(s)
- David Hugas
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain
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Szatyłowicz H. Structural aspects of the intermolecular hydrogen bond strength: H-bonded complexes of aniline, phenol and pyridine derivatives. J PHYS ORG CHEM 2008. [DOI: 10.1002/poc.1394] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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van Bochove MA, Swart M, Bickelhaupt FM. Nucleophilic substitution at phosphorus centers (SN2@p). Chemphyschem 2008; 8:2452-63. [PMID: 17990249 DOI: 10.1002/cphc.200700488] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We have studied the characteristics of archetypal model systems for bimolecular nucleophilic substitution at phosphorus (SN2@P) and, for comparison, at carbon (SN2@C) and silicon (SN2@Si) centers. In our studies, we applied the generalized gradient approximation (GGA) of density functional theory (DFT) at the OLYP/TZ2P level. Our model systems cover nucleophilic substitution at carbon in X(-)+CH3Y (SN2@C), at silicon in X(-)+SiH3Y (SN2@Si), at tricoordinate phosphorus in X(-)+PH2Y (SN2@P3), and at tetracoordinate phosphorus in X(-)+POH2Y (SN2@P4). The main feature of going from SN2@C to SN2@P is the loss of the characteristic double-well potential energy surface (PES) involving a transition state [X--CH3--Y]- and the occurrence of a single-well PES with a stable transition complex, namely, [X--PH2--Y]- or [X--POH2--Y](-). The differences between SN2@P3 and SN2@P4 are relatively small. We explored both the symmetric and asymmetric (i.e. X, Y=Cl, OH) SN2 reactions in our model systems, the competition between backside and frontside pathways, and the dependence of the reactions on the conformation of the reactants. Furthermore, we studied the effect, on the symmetric and asymmetric SN2@P3 and S(N)2@P4 reactions, of replacing hydrogen substituents at the phosphorus centers by chlorine and fluorine in the model systems X(-)+PR2Y and X(-)+POR2Y, with R=Cl, F. An interesting phenomenon is the occurrence of a triple-well PES not only in the symmetric, but also in the asymmetric SN2@P4 reactions of X(-)+POCl2--Y.
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Affiliation(s)
- Marc A van Bochove
- Theoretische Chemie, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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