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Durlak P, Latajka Z. Car–Parrinello and Path Integral Molecular Dynamics Study of the Proton Transfer in the Intramolecular Hydrogen Bonds in the Ketohydrazone–Azoenol System. J Phys Chem B 2018; 122:7862-7873. [DOI: 10.1021/acs.jpcb.8b04883] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Piotr Durlak
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland
| | - Zdzisław Latajka
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland
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Sayapin YA, Tupaeva IO, Kolodina AA, Gusakov EA, Komissarov VN, Dorogan IV, Makarova NI, Metelitsa AV, Tkachev VV, Aldoshin SM, Minkin VI. 2-Hetaryl-1,3-tropolones based on five-membered nitrogen heterocycles: synthesis, structure and properties. Beilstein J Org Chem 2015; 11:2179-88. [PMID: 26664640 PMCID: PMC4661002 DOI: 10.3762/bjoc.11.236] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 10/17/2015] [Indexed: 12/03/2022] Open
Abstract
A series of derivatives of 2-hetaryl-1,3-tropolone (β-tropolone) was prepared by the acid-catalyzed reaction of 2-methylbenzoxazoles, 2-methylbenzothiazoles and 2,3,3-trimethylindoline with 3,4,5,6-tetrachloro-1,2-benzoquinone. The molecular structures of the three representative compounds were determined by X-ray crystallography. In crystal and (as shown by the DFT PBE0/6-311+G** calculations) in solution, 2-hetaryl-4,5,6,7-tetrachloro- and 2-hetaryl-5,6,7-trichloro-1,3-tropolones exist in the NH-tautomeric form with a strong resonance-assisted intramolecular N–H···O hydrogen bond. The mechanism of the formation of 1,3-tropolones in the reaction of methylene-active five-membered heterocycles with o-chloranil in acetic acid solution has been studied using density functional theory (DFT) methods. The reaction of 2-(2-benzoxa(thia)zolyl)-5,6,7-trichloro(4,5,6,7-tetrachloro)-1,3-tropolones with alcohols leads to the contraction of the seven-membered tropone ring with the formation of 2-(2-benzoxa(thia)zolyl)-6-alkoxycarbonylphenols. The molecular structure of 2-(2-ethoxycarbonyl-6-hydroxy-3,4,5-trichlorophenyl)benzoxazole has been determined by X-ray diffraction. 2-(2-Benzoxa(thia)zolyl)-6-alkoxycarbonylphenols display intense green fluorescence with anomalous Stokes shifts caused by the excited state intramolecular proton transfer (ESIPT) effects.
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Affiliation(s)
- Yury A Sayapin
- Southern Scientific Center of Russian Academy of Sciences, 141 Chekhov St., 344006 Rostov on Don, Russian Federation ; Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Inna O Tupaeva
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Alexandra A Kolodina
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Eugeny A Gusakov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Vitaly N Komissarov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Igor V Dorogan
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
| | - Valery V Tkachev
- Institute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Akad. Semjonov N.N. Ave., 142432 Chernogolovka, Moscow region, Russian Federation
| | - Sergey M Aldoshin
- Institute of Problems of Chemical Physics of Russian Academy of Sciences, 1 Akad. Semjonov N.N. Ave., 142432 Chernogolovka, Moscow region, Russian Federation
| | - Vladimir I Minkin
- Southern Scientific Center of Russian Academy of Sciences, 141 Chekhov St., 344006 Rostov on Don, Russian Federation ; Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka St., 344090 Rostov on Don, Russian Federation
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Hansen PE, Borisov EV, Lindon JC. Determination of the tautomeric equilibria of pyridoyl benzoyl β-diketones in the liquid and solid state through the use of deuterium isotope effects on (1)H and (13)C NMR chemical shifts and spin coupling constants. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt A:107-112. [PMID: 24070650 DOI: 10.1016/j.saa.2013.08.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 08/30/2013] [Indexed: 06/02/2023]
Abstract
The tautomeric equilibria for 2-pyridoyl-, 3-pyridoyl-, and 4-pyridoyl-benzoyl methane have been investigated using deuterium isotope effects on (1)H and (13)C chemical shifts both in the liquid and the solid state. Equilibria are established both in the liquid and the solid state. In addition, in the solution state the 2-bond and 3-bond J((1)H-(13)C) coupling constants have been used to confirm the equilibrium positions. The isotope effects due to deuteriation at the OH position are shown to be superior to chemical shift in determination of equilibrium positions of these almost symmetrical -pyridoyl-benzoyl methanes. The assignments of the NMR spectra are supported by calculations of the chemical shifts at the DFT level. The equilibrium positions are shown to be different in the liquid and the solid state. In the liquid state the 4-pyridoyl derivative is at the B-form (C-1 is OH), whereas the 2-and 3-pyridoyl derivatives are in the A-form. In the solid state all three compounds are on the B-form. The 4-pyridoyl derivative shows unusual deuterium isotope effects in the solid, which are ascribed to a change of the crystal structure of the deuteriated compound.
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Affiliation(s)
- Poul Erik Hansen
- Department of Science, Systems and Models, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark.
| | - Eugeny V Borisov
- Institute of Bio-organic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - John C Lindon
- Computational and Systems Medicine, Department of Surgery and Cancer, Imperial College London, Sir Alexander Fleming Building, South Kensington, London SW7 2AZ, UK
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Sayapin YA, Gusakov EA, Bang ZN, Tupaeva IO, Komissarov VN, Dorogan IV, Tkachev VV, Aldoshin SM, Minkin VI. Synthesis and structure of 3-arylamino-2-(quinolin-2-yl)tropones. Russ Chem Bull 2013. [DOI: 10.1007/s11172-013-0067-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nakano T, Masuda Y. Application of Nuclear Magnetic Relaxation To Elucidate Proton Location and Dynamics in N···H···O Hydrogen Bonds. J Phys Chem A 2012; 116:8409-18. [DOI: 10.1021/jp303297c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tomoko Nakano
- Department of Chemistry, Faculty
of Science, Ochanomizu University, Bunkyo-ku,
Tokyo 112-8610, Japan
| | - Yuichi Masuda
- Department of Chemistry, Faculty
of Science, Ochanomizu University, Bunkyo-ku,
Tokyo 112-8610, Japan
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Deuterium isotope effects on 13C and 15N chemical shifts of intramolecularly hydrogen-bonded enaminocarbonyl derivatives of Meldrum’s and Tetronic acid. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.03.059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Irshaidat T. A DFT study on the mono lithium and sodium salts of N-(2-hydroxyphenyl)salicylaldimine. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.12.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gilli P, Pretto L, Bertolasi V, Gilli G. Predicting hydrogen-bond strengths from acid-base molecular properties. The pK(a) slide rule: toward the solution of a long-lasting problem. Acc Chem Res 2009; 42:33-44. [PMID: 18921985 DOI: 10.1021/ar800001k] [Citation(s) in RCA: 549] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unlike normal chemical bonds, hydrogen bonds (H-bonds) characteristically feature binding energies and contact distances that do not simply depend on the donor (D) and acceptor (:A) nature. Instead, their chemical context can lead to large variations even for a same donor-acceptor couple. As a striking example, the weak HO-H...OH(2) bond in neutral water changes, in acidic or basic medium, to the 6-fold stronger and 15% shorter [H(2)O...H...OH(2)](+) or [HO...H...OH](-) bonds. This surprising behavior, sometimes called the H-bond puzzle, practically prevents prediction of H-bond strengths from the properties of the interacting molecules. Explaining this puzzle has been the main research interest of our laboratory in the last 20 years. Our first contribution was the proposal of RAHB (resonance-assisted H-bond), a new type of strong H-bond where donor and acceptor are linked by a short pi-conjugated fragment. The RAHB discovery prompted new studies on strong H-bonds, finally leading to a general H-bond classification in six classes, called the six chemical leitmotifs, four of which include all known types of strong bonds. These studies attested to the covalent nature of the strong H-bond showing, by a formal valence-bond treatment, that weak H-bonds are basically electrostatic while stronger ones are mixtures of electrostatic and covalent contributions. The covalent component gradually increases as the difference of donor-acceptor proton affinities, DeltaPA, or acidic constants, DeltapK(a), approaches zero. At this limit, the strong and symmetrical D...H...A bonds formed can be viewed as true three-center-four-electron covalent bonds. These results emphasize the role PA/pK(a) equalization plays in strengthening the H-bond, a hypothesis often invoked in the past but never fully verified. In this Account, this hypothesis is reconsidered by using a new instrument, the pK(a) slide rule, a bar chart that reports in separate scales the pK(a)'s of the D-H proton donors and :A proton acceptors most frequently involved in D-H...:A bond formation. Allowing the two scales to shift so to bring selected donor and acceptor molecules into coincidence, the ruler permits graphical evaluation of DeltapK(a) and then empirical appreciation of the D-H...:A bond strength according to the pK(a) equalization principle. Reliability of pK(a) slide rule predictions has been verified by extensive comparison with two classical sources of H-bond strengths: (i) the gas-phase dissociation enthalpies of charged [X...H...X](-) and [X...H...X](+) bonds derived from the thermodynamic NIST Database and (ii) the geometries of more than 9500 H-bonds retrieved from the Cambridge Structural Database. The results attest that the pK(a) slide rule provides a reliable solution for the long-standing problem of H-bond-strength prediction and represents an efficient and practical tool for making such predictions directly accessible to all scientists.
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Affiliation(s)
- Paola Gilli
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica, Università di Ferrara, I-44100 Ferrara, Italy
| | - Loretta Pretto
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica, Università di Ferrara, I-44100 Ferrara, Italy
| | - Valerio Bertolasi
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica, Università di Ferrara, I-44100 Ferrara, Italy
| | - Gastone Gilli
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica, Università di Ferrara, I-44100 Ferrara, Italy
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Khlebnikova TS, Isakova VG, Baranovskii AV, Lakhvich FA, Lyakhov AS. Synthesis and properties of fluorinated 2-benzoylcyclohexane-1,3-diones. RUSS J GEN CHEM+ 2007. [DOI: 10.1134/s1070363207100118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Singh M. Friccohenics of Continuum and Non‐Continuum Models for Liquid Flow Applied for Heteromolecular Interaction of DNA Bases and Sugars Estimated with Mansingh Equation. J DISPER SCI TECHNOL 2007. [DOI: 10.1080/01932690701341850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Nguyen TT, Le TN, Duus F, Hansen BKV, Hansen PE. Intramolecular hydrogen bonding of novel o-hydroxythioacetophenones and related compounds evaluated by deuterium isotope effects on 13C chemical shifts. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2007; 45:245-52. [PMID: 17290362 DOI: 10.1002/mrc.1957] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A new class of compounds, the 2-hydroxythioacetophenones, and related compounds have recently been synthesized. The hydrogen-bond system has been characterized by NMR chemical shifts and deuterium isotope effects on these as well as by DFT calculations. Use of solid-state (13)C NMR has enabled measurements of the intrinsic deuterium isotope effects of the most abundant tautomer of beta-thioxoketones. The compounds show very interesting long-range deuterium isotope effects on the thiocarbonyl carbon. The intramolecular hydrogen bonds of o-hydroxythioacetophenones are found to be slightly stronger than those of the corresponding acetophenones. The reactivity and stability of the compounds can be related to hydrogen bonding and to the presence of electron donating substituents.
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Affiliation(s)
- Trung Thanh Nguyen
- Department of Organic Chemistry, University of Natural Sciences, National University of HoChiMinh City, 227 Nguyen Van Cu St, Dist 5, HoChiMinh City, Vietnam
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New method for the synthesis of β-tropolones: Structures of condensation products of o-quinones with 2-methylquinolines and the mechanism of their formation. Russ Chem Bull 2006. [DOI: 10.1007/s11172-006-0547-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Burnette RR, Weinhold F. Determination of the Conformation of 2-Hydroxy- and 2-Aminobenzoic Acid Dimers Using 13C NMR and Density Functional Theory/Natural Bond Order Analysis: The Central Importance of the Carboxylic Acid Carbon. J Phys Chem A 2006; 110:8832-9. [PMID: 16836447 DOI: 10.1021/jp058300w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The 13C chemical shift for the carboxylic acid carbon provides a powerful diagnostic probe to determine the preferred isomeric dimer structures of benzoic acid derivatives undergoing intra- and intermolecular H-bonding in the gas, solution and crystalline phases. We have employed hybrid density functional calculations and natural bond orbital analysis to elucidate the electronic origins of the observed 13C shieldings and their relationship to isomeric stability. We find that delocalizing interactions from the carbonyl oxygen lone pairs (nO) into vicinal carbon-oxygen and carbon-carbon antibonds (sigmaCO*,sigmaCC*) make critical contributions to the 13C shieldings, and these nO --> sigmaCO*, nO --> sigmaCC* interactions are in turn sensitive to the intramolecular interactions that dictate dimer structure and stability. The carboxyl carbon atom can thus serve as a useful detector of subtle structural and conformational features in this pharmacologically important class of carboxylic acid interactions.
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Affiliation(s)
- Ronald R Burnette
- School of Pharmacy and the Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53705, USA.
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17
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West-Nielsen M, Dominiak PM, Wozniak K, Hansen PE. Strong intramolecular hydrogen bonding involving nitro- and acetyl groups. Deuterium isotope effects on chemical shifts. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.12.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Musin RN, Mariam YH. An integrated approach to the study of intramolecular hydrogen bonds in malonaldehyde enol derivatives and naphthazarin: trend in energetic versus geometrical consequences. J PHYS ORG CHEM 2006. [DOI: 10.1002/poc.1102] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Raczyńska ED, Kosińska W, Ośmiałowski B, Gawinecki R. Tautomeric Equilibria in Relation to Pi-Electron Delocalization. Chem Rev 2005; 105:3561-612. [PMID: 16218561 DOI: 10.1021/cr030087h] [Citation(s) in RCA: 247] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Weinhold F. Resonance Character of Hydrogen-bonding Interactions in Water and Other H-bonded Species. ADVANCES IN PROTEIN CHEMISTRY 2005; 72:121-55. [PMID: 16581375 DOI: 10.1016/s0065-3233(05)72005-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hydrogen bonding underlies the structure of water and all biochemical processes in aqueous medium. Analysis of modern ab initio wave functions in terms of natural bond orbitals (NBOs) strongly suggests the resonance-type "charge transfer" (CT) character of H-bonding, contrary to the widely held classical-electrostatic viewpoint that underlies current molecular dynamics (MD) modeling technology. Quantum cluster equilibrium (QCE) theory provides an alternative ab initio-based picture of liquid water that predicts proton-ordered two-coordinate H-bonding patterns, dramatically different from the ice-like picture of electrostatics-based MD simulations. Recent X-ray absorption and Raman scattering experiments of Nilsson and co-workers confirm the microstructural two-coordinate picture of liquid water. We show how such cooperative "unsaturated" ring/chain topologies arise naturally from the fundamental resonance-CT nature of B:cdots, three dots, centeredHA hydrogen bonding, which is expressed in NBO language as n(B)-->sigma(AH)(*) intermolecular delocalization from a filled lone pair n(B) of the Lewis base (B:) into the proximal antibond sigma(AH)(*) of the Lewis acid (HA). Stabilizing n(O)-->sigma(OH)(*) orbital delocalization, equivalent to partial mixing of resonance structures H(2)O:cdots, three dots, centeredHOH H(3)O(+) cdots, three dots, centered(-):OH, is thereby seen to be the electronic origin of general enthalpic and entropic propensities that favor relatively small cyclic clusters such as water pentamers W(5c) in the QCE liquid phase. We also discuss the thermodynamically competitive three-coordinate clusters (e.g., icosahedral water buckyballs, W(24)), which appear to play a role in hydrophobic solvation phenomena. We conclude with suggestions for incorporating resonance-CT aspects of H-bonding into empirical MD simulation potentials in a computationally tractable manner.
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Affiliation(s)
- F Weinhold
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706
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22
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Alkorta I, Elguero J, Mó O, Yáñez * M, Del Bene JE. Do coupling constants and chemical shifts provide evidence for the existence of resonance-assisted hydrogen bonds? Mol Phys 2004. [DOI: 10.1080/00268970412331292885] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Horváth V, Varga Z, Kovács A. Long-Range Effects in Oligopeptides. A Theoretical Study of the β-Sheet Structure of Glyn (n = 2−10). J Phys Chem A 2004. [DOI: 10.1021/jp049450u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Viktória Horváth
- Structural Chemistry Research Group of the Hungarian Academy of Sciences at Eötvös University, H-1518 Budapest, Pf. 32, Hungary, Institute of General and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, and Hungarian Academy of Sciences − Budapest University of Technology and Economics, Research Group of Technical Analytical Chemistry, H-1111 Budapest, Szt. Gellért tér 4, Hungary
| | - Zoltán Varga
- Structural Chemistry Research Group of the Hungarian Academy of Sciences at Eötvös University, H-1518 Budapest, Pf. 32, Hungary, Institute of General and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, and Hungarian Academy of Sciences − Budapest University of Technology and Economics, Research Group of Technical Analytical Chemistry, H-1111 Budapest, Szt. Gellért tér 4, Hungary
| | - Attila Kovács
- Structural Chemistry Research Group of the Hungarian Academy of Sciences at Eötvös University, H-1518 Budapest, Pf. 32, Hungary, Institute of General and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary, and Hungarian Academy of Sciences − Budapest University of Technology and Economics, Research Group of Technical Analytical Chemistry, H-1111 Budapest, Szt. Gellért tér 4, Hungary
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Gilli P, Bertolasi V, Pretto L, Ferretti V, Gilli G. Covalent versus electrostatic nature of the strong hydrogen bond: discrimination among single, double, and asymmetric single-well hydrogen bonds by variable-temperature X-ray crystallographic methods in beta-diketone enol RAHB systems. J Am Chem Soc 2004; 126:3845-55. [PMID: 15038739 DOI: 10.1021/ja030213z] [Citation(s) in RCA: 198] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Beta-diketone enols are known to form intramolecular...O=C-C=C-OH... resonance-assisted hydrogen bonds (RAHBs) with O...O distances as short as 2.39-2.44 A. However, even the most accurate diffraction studies have not been able to assess with certainty whether these very strong hydrogen bonds (H-bonds) are to be described as proton-centered O...H...O bonds in a single-well (SW) potential or as the dynamic or static mixing of two O-H...O <= => O...H-O tautomers in a double-well (DW) one. This contribution reexamines the problem and shows that diffraction methods are fairly able to assess the SW or DW nature of the H-bond formed and, in the second case, its dynamic or static nature, provided a Bayesian approach is used which associates a number of experimental techniques (X-ray crystallography at variable temperature, difference Fourier maps, least-squares refinement of proton populations, Hirshfeld's rigid-bond test) with a reasonable prior, that is the full set of possible proton-transfer (PT) pathways for the O-H...O system derived from theoretical calculations. The method is first applied to three beta-diketone enols, whose crystal structures were determined in the interval of temperatures 100-295 K and then generalized to the interpretation of a much wider set of beta-diketone enol structures derived from the literature, making it possible to establish a general relationship between chemical structure (symmetric or dissymmetric substitution, steric compression or stretching, increased pi-bond delocalizability), H-bond strength, and the shape of the PT-barrier. Final results are interpreted in terms of simplified VB theory and state-correlation (or avoided-crossing) diagrams.
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Affiliation(s)
- Paola Gilli
- Centro di Strutturistica Diffrattometrica and Dipartimento di Chimica, Universitá di Ferrara, Via L. Borsari, 46, 44100 Ferrara, Italy
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Specific Features of Intramolecular Proton Transfer Reaction in Schiff Bases. Int J Mol Sci 2003. [DOI: 10.3390/i4070434] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Gilli P, Bertolasi V, Pretto L, Lycka A, Gilli G. The nature of solid-state N-H triplebondO/O-H triplebond N tautomeric competition in resonant systems. Intramolecular proton transfer in low-barrier hydrogen bonds formed by the triplebond O=C-C=N-NH triple bond --> <-- triplebond HO-C=C-N=N triplebond Ketohydrazone-Azoenol system. A variable-temperature X-ray crystallographic and DFT computational study. J Am Chem Soc 2002; 124:13554-67. [PMID: 12418911 DOI: 10.1021/ja020589x] [Citation(s) in RCA: 203] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The tautomeric.O=C-C=N-NH triplebond --> <-- HO-C=C-N=N triplebond ketohydrazone-azoenol system may form strong N-H triplebond O/O-H triplebond N intramolecular resonance-assisted H-bonds (RAHBs) which are sometimes of the low-barrier H-bond type (LBHB) with dynamic exchange of the proton in the solid state. The problem of the N-H triplebond O/O-H triplebond N competition in these compounds is studied here through variable-temperature (100, 150, 200, and 295 K) crystal-structure determination of pF = 1-(4-F-phenylazo)2-naphthol and oF = 1-(2-F-phenylazo)2-naphthol, two molecules that, on the ground of previous studies (Gilli, P; Bertolasi, V.; Ferretti, V.; Gilli, G. J. Am. Chem. Soc. 2000, 122, 10405), were expected to represent an almost perfect balance of the two tautomers. According to predictions, the two molecules form remarkably strong bonds (d(N triplebond O) = 2.53-2.55 A) of double-minimum or LBHB type with dynamic N-H triplebond O/ O-H triplebond N exchange in the solid state. The enthalpy differences between the two minima, as measured by van't Hoff methods from the X-ray-determined proton populations, are very small and amount to DeltaH degrees = -0.120 and DeltaH degrees = -0.156 kcal mol(-)(1) in favor of the N-H triplebond O form for pF and oF, respectively. Successive emulation of pF by DFT methods at the B3LYP/6-31+G(d,p)//B3LYP/6-31+G(d,p) level has shown that both energetic and geometric experimental aspects can be almost perfectly reproduced. Generalization of these results was sought by performing DFT calculations at the same level of theory along the complete proton-transfer (PT) pathway for five test molecules designed in such a way that the RAHB formed changes smoothly from weak N-H triplebond O to strong O-H.N through very strong N-H triplebond O/O-H triplebond N bond of LBHB type. A systematic correlation analysis of H-bond energies, H-bond and pi-conjugated fragment geometries, and H-bond Bader's AIM topological properties performed along the PT-pathways leads to the following conclusions: (a) any X-H triplebond Y H-bonded system is fully characterized by its intrinsic PT-barrier, that is, the symmetric barrier occurring when the proton affinities of X and Y are identical; (b) the intrinsic X-H triplebond Y bond associated with the symmetric barrier is the strongest possible bond in that system and will be single-minimum (single-well, no-barrier) or double-minimum (double-well, low-barrier) according to whether the intrinsic PT-barrier is lower or slightly higher than the zero-point vibrational level of the proton; (c) with reference to the intrinsic H-bond, the effect of chemical substitution can only be that of making more and more dissymmetric the PT-barrier, while the two H-bonds split in a higher-energy bond which is stronger because closer to the transition-state structure and in a lower-energy one (the stable form) which is weaker because farther from it; (d) complete dissymmetrization of the PT-barrier will increasingly weaken the more stable H-bond until the formation of an extreme dissymmetric single-minimum or dissymmetric single-well H-bond.
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Affiliation(s)
- Paola Gilli
- Centro di Strutturistica Diffrattometrica and Dipartimento di Chimica, Università di Ferrara, Italy
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Kovács A, Szabó A, Hargittai I. Structural characteristics of intramolecular hydrogen bonding in benzene derivatives. Acc Chem Res 2002; 35:887-94. [PMID: 12379141 DOI: 10.1021/ar020003b] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this Account, the intramolecular hydrogen bonding (HB) properties of various proton acceptor groups (BX(n): C=N, NO(2), C=O, P=O, F, CF(3)) with OH and NH(2) (AH) in benzene derivatives are assessed on the basis of gas electron diffraction, spectroscopic, and quantum chemical results. The most important properties are the HB energy, the characteristic geometrical changes in the interacting groups (lengthening of the A-H and B-X, shortening of the C-A and C-B bonds) and in the benzene ring, and the vibrational properties of the AH groups. These properties are characteristic of the particular HB interaction (in particular of the AH and BX(n) pair in single and multiple hydrogen-bonded systems); however, they cannot be related directly to the computed HB energies.
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Affiliation(s)
- Attila Kovács
- Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute of General and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellért tér 4, Hungary
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28
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Grech E, Klimkiewicz J, Nowicka-Scheibe J, Pietrzak M, Schilf W, Pozharski A, Ozeryanskii V, Bolvig S, Abildgaard J, Hansen P. Deuterium isotope effects on 15N, 13C and 1H chemical shifts of proton sponges. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00216-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kovács A, Izvekov V, Zauer K, Ohta K. Strong Intramolecular Hydrogen Bonding and Molecular Vibrations of 9-Hydroxyphenalen-1-one. J Phys Chem A 2001. [DOI: 10.1021/jp0045033] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Attila Kovács
- Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute of General and Analytical Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, Department of Organic Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, and Department of Optical Materials, Osaka National Research Institute, AIST, MITI, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Vladislav Izvekov
- Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute of General and Analytical Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, Department of Organic Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, and Department of Optical Materials, Osaka National Research Institute, AIST, MITI, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Károly Zauer
- Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute of General and Analytical Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, Department of Organic Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, and Department of Optical Materials, Osaka National Research Institute, AIST, MITI, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
| | - Koji Ohta
- Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute of General and Analytical Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, Department of Organic Chemistry, Technical University of Budapest, H-1521 Budapest, Szt. Gellért tér 4, Hungary, and Department of Optical Materials, Osaka National Research Institute, AIST, MITI, 1-8-31 Midorigaoka, Ikeda, Osaka 563-8577, Japan
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30
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Garcia-Viloca M, González-Lafont A, Lluch JM. The (1)H NMR chemical shift for the hydroxy proton of 4-(dimethylamino)-2'-hydroxychalcone in chloroform: a theoretical approach to its inverse dependence on the temperature. Org Lett 2001; 3:589-92. [PMID: 11178832 DOI: 10.1021/ol0069958] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] The inverse dependence of the chemical shift on the temperature experimentally found for the phenolic proton of 4-(dimethylamino)-2'-hydroxychalcone (DMAHC) is theoretically studied. As the temperature decreases, the solvent dielectric constant epsilon increases and the zwitterionic resonance form is more stabilized. Electronic calculations at the DFT level of theory were performed by immersing the solute DMAHC in chloroform cavities of different epsilon values. The values of the calculated chemical shifts for DMAHC as a function of epsilon show that the growing contribution of the zwitterionic structure justifies the experimental results.
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Affiliation(s)
- M Garcia-Viloca
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain
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31
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Gilli P, Bertolasi V, Ferretti V, Gilli G. Evidence for Intramolecular N−H···O Resonance-Assisted Hydrogen Bonding in β-Enaminones and Related Heterodienes. A Combined Crystal-Structural, IR and NMR Spectroscopic, and Quantum-Mechanical Investigation. J Am Chem Soc 2000. [DOI: 10.1021/ja000921+] [Citation(s) in RCA: 411] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Dannenberg JJ, Paraskevas LR, Sharma V. How Do Strong Hydrogen Bonds Affect the Acidities of Carbon Acids? An ab Initio Molecular Orbital Study. J Phys Chem A 2000. [DOI: 10.1021/jp994259j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. J. Dannenberg
- Department of Chemistry, City University of New York, Hunter College and The Graduate School, 695 Park Avenue, New York, New York 10021
| | - Lilly-Rose Paraskevas
- Department of Chemistry, City University of New York, Hunter College and The Graduate School, 695 Park Avenue, New York, New York 10021
| | - Vanita Sharma
- Department of Chemistry, City University of New York, Hunter College and The Graduate School, 695 Park Avenue, New York, New York 10021
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34
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Fonseca Guerra C, Bickelhaupt FM, Snijders JG, Baerends EJ. Hydrogen Bonding in DNA Base Pairs: Reconciliation of Theory and Experiment. J Am Chem Soc 2000. [DOI: 10.1021/ja993262d] [Citation(s) in RCA: 372] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Célia Fonseca Guerra
- Contribution from the Afdeling Theoretische Chemie, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands, and Theoretische Chemie, Rijksuniversiteit Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
| | - F. Matthias Bickelhaupt
- Contribution from the Afdeling Theoretische Chemie, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands, and Theoretische Chemie, Rijksuniversiteit Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
| | - Jaap G. Snijders
- Contribution from the Afdeling Theoretische Chemie, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands, and Theoretische Chemie, Rijksuniversiteit Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
| | - Evert Jan Baerends
- Contribution from the Afdeling Theoretische Chemie, Scheikundig Laboratorium der Vrije Universiteit, De Boelelaan 1083, NL-1081 HV Amsterdam, The Netherlands, and Theoretische Chemie, Rijksuniversiteit Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
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35
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Modelli A, Scagnolari F, Distefano G. Effect of intramolecular hydrogen bonding on the empty level structure of gas-phase salicylaldehyde:electron affinities and anion yield upon electron impact. Chem Phys 1999. [DOI: 10.1016/s0301-0104(99)00252-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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36
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Madsen GKH, Wilson C, Nymand TM, McIntyre GJ, Larsen FK. The Structure of Nitromalonamide: A Combined Neutron-Diffraction and Computational Study of a Very Short Hydrogen Bond. J Phys Chem A 1999. [DOI: 10.1021/jp991102i] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Georg K. H. Madsen
- Department of Chemistry, University of Aarhus, DK-8000 Århus C., and Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - Claire Wilson
- Department of Chemistry, University of Aarhus, DK-8000 Århus C., and Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - Thomas M. Nymand
- Department of Chemistry, University of Aarhus, DK-8000 Århus C., and Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - Garry J. McIntyre
- Department of Chemistry, University of Aarhus, DK-8000 Århus C., and Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
| | - Finn K. Larsen
- Department of Chemistry, University of Aarhus, DK-8000 Århus C., and Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9, France
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37
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Bolvig S, Hansen P, Wemmer D, Williams P. Deuterium isotope effects on 17 O chemical shifts of intramolecularly hydrogen bonded systems. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(99)00219-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Kovács A, Hargittai I. Hydrogen bonding in 2-trifluoromethylresorcinol and 2,6-bis(trifluoromethyl)phenol and its geometrical consequences. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0166-1280(98)00101-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Ludwig R, Reis O, Winter R, Weinhold F, Farrar TC. Quantum Cluster Equilibrium Theory of Liquids: Temperature Dependence of Hydrogen Bonding in Liquid N-Methylacetamide Studied by IR Spectra. J Phys Chem B 1998. [DOI: 10.1021/jp971575u] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Madsen GKH, Iversen BB, Larsen FK, Kapon M, Reisner GM, Herbstein FH. Topological Analysis of the Charge Density in Short Intramolecular O−H···O Hydrogen Bonds. Very Low Temperature X-ray and Neutron Diffraction Study of Benzoylacetone. J Am Chem Soc 1998. [DOI: 10.1021/ja980200z] [Citation(s) in RCA: 119] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Georg Kent Hellerup Madsen
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
| | - Bo Brummerstedt Iversen
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
| | - Finn Krebs Larsen
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
| | - Moshe Kapon
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
| | - George M. Reisner
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
| | - Frank H. Herbstein
- Contribution from the Departments of Chemistry, University of Aarhus, DK-8000 Århus C, Denmark, and Technion, Israel Institute of Technology, Haifa, Israel 32000
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41
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Abildgaard J, Bolvig S, Hansen PE. Unraveling the Electronic and Vibrational Contributions to Deuterium Isotope Effects on 13C Chemical Shifts Using ab Initio Model Calculations. Analysis of the Observed Isotope Effects on Sterically Perturbed Intramolecular Hydrogen-Bonded o-Hydroxy Acyl Aromatics. J Am Chem Soc 1998. [DOI: 10.1021/ja9809051] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jens Abildgaard
- Contribution from the Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Simon Bolvig
- Contribution from the Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Poul Erik Hansen
- Contribution from the Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
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42
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Kov�cs A, Kolossv�ry I, Csonka GI, Hargittai I. Theoretical study of intramolecular hydrogen bonding and molecular geometry of 2-trifluoromethylphenol. J Comput Chem 1996. [DOI: 10.1002/jcc.2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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