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Barceló-Oliver M, Estarellas C, García-Raso A, Terrón A, Frontera A, Quiñonero D, Mata I, Molins E, Deyà PM. Experimental and theoretical study of uracil derivatives: the crucial role of weak fluorine–fluorine noncovalent interactions. CrystEngComm 2010. [DOI: 10.1039/c0ce00048e] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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52
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Juárez-Pérez EJ, Viñas C, Teixidor F, Núñez R. First example of the formation of a Si–C bond from an intramolecular Si–H⋯H–C diyhydrogen interaction in a metallacarborane: A theoretical study. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.12.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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53
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54
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Wolstenholme DJ, Matta CF, Cameron TS. Experimental and Theoretical Electron Density Study of a Highly Twisted Polycyclic Aromatic Hydrocarbon: 4-Methyl-[4]helicene. J Phys Chem A 2007; 111:8803-13. [PMID: 17705352 DOI: 10.1021/jp071002+] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Helicenes are molecules of considerable interest in view of their aromaticity which persists despite a marked departure from planarity and because of the extreme potency of some of their metabolites as tumor and mutation promoters. In this study, the electron density of 4-methyl-[4]helicene (or 4-methylbenzo[c]phenanthrene) is studied topologically with an emphasis on the fjord region since this region is where metabolic activation is initiated. The molecule consists of four fused aromatic rings that assume a twisted geometry. This geometry brings two hydrogen atoms into close proximity in the fjord region of the molecule accompanied by the appearance of an intramolecular C-Hdelta+...delta+H-C bond path (an interaction termed hydrogen-hydrogen or H- H bonding to distinguish it from dihydrogen bonding from which it is qualitatively distinct). In addition to the intramolecular H-H interaction, a number of intermolecular interactions are shown to be involved in the packing of this molecule in the crystalline state. The effect of the nonplanarity of the molecule on the local aromaticity of each ring is also discussed.
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Affiliation(s)
- David J Wolstenholme
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4J3, Canada
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55
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Castro M, Nicolás-Vázquez I, Zavala JI, Sánchez-Viesca F, Berros M. Theoretical Study of Intramolecular, CHX (X = N, O, Cl), Hydrogen Bonds in Thiazole Derivatives. J Chem Theory Comput 2007; 3:681-8. [DOI: 10.1021/ct600336r] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miguel Castro
- Departamento de Física y Química Teórica and Departamento de Química Orgánica, DEPg., Facultad de Química, Universidad Nacional Autónoma de México, México D.F., C.P. 04510, México, and Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Campo 1, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C. P. 54740, Edo. de México, México
| | - Inés Nicolás-Vázquez
- Departamento de Física y Química Teórica and Departamento de Química Orgánica, DEPg., Facultad de Química, Universidad Nacional Autónoma de México, México D.F., C.P. 04510, México, and Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Campo 1, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C. P. 54740, Edo. de México, México
| | - Jesús I. Zavala
- Departamento de Física y Química Teórica and Departamento de Química Orgánica, DEPg., Facultad de Química, Universidad Nacional Autónoma de México, México D.F., C.P. 04510, México, and Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Campo 1, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C. P. 54740, Edo. de México, México
| | - F. Sánchez-Viesca
- Departamento de Física y Química Teórica and Departamento de Química Orgánica, DEPg., Facultad de Química, Universidad Nacional Autónoma de México, México D.F., C.P. 04510, México, and Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Campo 1, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C. P. 54740, Edo. de México, México
| | - Martha Berros
- Departamento de Física y Química Teórica and Departamento de Química Orgánica, DEPg., Facultad de Química, Universidad Nacional Autónoma de México, México D.F., C.P. 04510, México, and Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Campo 1, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, C. P. 54740, Edo. de México, México
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56
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Sobczyk L, Grabowski SJ, Krygowski TM. Interrelation between H-bond and Pi-electron delocalization. Chem Rev 2005; 105:3513-60. [PMID: 16218560 DOI: 10.1021/cr030083c] [Citation(s) in RCA: 522] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lucjan Sobczyk
- Faculty of Chemistry, University of Wrocław, Joliot-Curie 14, 50 383 Wrocław, Poland
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57
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The first example of a cage critical point in a single ring: A novel twisted α-helical ring topology. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.04.088] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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58
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Grabowski SJ, Sokalski WA, Leszczynski J. How Short Can the H···H Intermolecular Contact Be? New Findings that Reveal the Covalent Nature of Extremely Strong Interactions. J Phys Chem A 2005; 109:4331-41. [PMID: 16833763 DOI: 10.1021/jp0444215] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ab initio calculations at the MP2/6-311++G(d,p) and MP2/aug-cc-pVDZ//MP2/aug-cc-pVTZ levels have been performed for the following complexes: H2OH+...HBeH, H2OH+...HBeBeH, H2OH+...HBeF, HClOH+...HBeH, Cl2OH+...HBeH, and Cl2OH+...HBeF. For all dimers considered, extremely short H...H intermolecular contacts (1.0-1.3 A) were obtained. These are the shortest intermolecular distances which have ever been reported, with binding energies within the range of 13.7-24.3 kcal/mol (MP2/aug-cc-pVDZ//MP2/aug-cc-pVTZ level). The interaction energies of the complexes analyzed were also extrapolated to the complete basis set (CBS) limit. To explain the nature of such strong interactions, the Bader theory was applied, and the characteristics of the bond critical points (BCPs) were analyzed. It was pointed out that for the major part of the H...H contacts considered here the Laplacian of the electron density at H...H BCP is negative indicating the partly covalent nature of such a connection. The term "covalent character of the hydrogen bond" used sometimes in recent studies is discussed. An analysis of the interaction energy components for dihydrogen bonded systems considered indicates that in contrast to conventional hydrogen bonded systems the attractive electrostatic term is outweighed by the repulsive exchange energy term and that the higher order delocalization energy term is the most important attractive term.
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Affiliation(s)
- Sławomir J Grabowski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland.
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59
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Matta CF, Castillo N, Boyd RJ. Characterization of a Closed-Shell Fluorine−Fluorine Bonding Interaction in Aromatic Compounds on the Basis of the Electron Density. J Phys Chem A 2005; 109:3669-81. [PMID: 16839033 DOI: 10.1021/jp045044z] [Citation(s) in RCA: 140] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A bond path linking two saturated fluorine atoms is found to be ubiquitous in crowded difluorinated aromatic compounds. The bond path is shown to persist for a range of internuclear distances (2.3-2.8 A) and a range of relative orientations of the two C-F internuclear axes. The F. . .F bonding is shown to exhibit all the hallmarks of a closed-shell weak interaction. The presence of such a bond path can impart as much as 14 kcal/mol of local stabilization to the molecule in which it exists, a stabilization that can be offset or even overwhelmed by destabilization of other regions in the molecule. Several other weak closed-shell interactions were also found and characterized including F. . .C, F. . .O, and C. . .C interactions, hydrogen bonding, dihydrogen bonding, and hydrogen-hydrogen bonding. This study represents another example of the usefulness and richness of the bond path concept and of the theory of atoms in molecules in general.
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Affiliation(s)
- Chérif F Matta
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4J3
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60
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Lipkowski P, Grabowski SJ, Robinson TL, Leszczynski J. Properties of the C−H···H Dihydrogen Bond: An ab Initio and Topological Analysis. J Phys Chem A 2004. [DOI: 10.1021/jp048562i] [Citation(s) in RCA: 221] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paweł Lipkowski
- Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50−370 Wrocław, Poland, and Department of Crystallography and Crystal Chemistry, University of Łódź 90-236 Łódź, ul. Pomorska 149/153, Poland
| | - Sławomir J. Grabowski
- Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50−370 Wrocław, Poland, and Department of Crystallography and Crystal Chemistry, University of Łódź 90-236 Łódź, ul. Pomorska 149/153, Poland
| | - Teri L. Robinson
- Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50−370 Wrocław, Poland, and Department of Crystallography and Crystal Chemistry, University of Łódź 90-236 Łódź, ul. Pomorska 149/153, Poland
| | - Jerzy Leszczynski
- Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50−370 Wrocław, Poland, and Department of Crystallography and Crystal Chemistry, University of Łódź 90-236 Łódź, ul. Pomorska 149/153, Poland
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61
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Grabowski SJ, Sokalski WA, Leszczynski J. Nature of X−H+δ···-δH−Y Dihydrogen Bonds and X−H···σ Interactions. J Phys Chem A 2004. [DOI: 10.1021/jp049874o] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sławomir J. Grabowski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - W. Andrzej Sokalski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Jerzy Leszczynski
- Department of Crystallography and Crystal Chemistry, University of Łódź, 90-236 Łódź, ul. Pomorska 149/153, Poland, Computational Center for Molecular Structure and Interactions, Department of Chemistry, Jackson State University, Jackson, Mississippi 39217, and Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
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