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Symmetry/Asymmetry of the NHN Hydrogen Bond in Protonated 1,8-Bis(dimethylamino)naphthalene. Symmetry (Basel) 2020. [DOI: 10.3390/sym12111924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Experimental and theoretical results are presented based on vibrational spectra and motional dynamics of 1,8-bis(dimethylamino)naphthalene (DMAN) and its protonated forms (DMANH+ and the DMANH+ HSO4− complex). The studies of these compounds have been performed in the gas phase and solid-state. Spectroscopic investigations were carried out by infrared spectroscopy (IR), Raman, and incoherent inelastic neutron scattering (IINS) experimental methods. Density functional theory (DFT) and Car–Parrinello molecular dynamics (CPMD) methods were applied to support our experimental findings. The fundamental investigations of hydrogen bridge vibrations were accomplished on the basis of isotopic substitutions (NH → ND). Special attention was paid to the bridged proton dynamics in the DMANH+ complex, which was found to be affected by interactions with the HSO4− anion.
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Hansen PE, Spanget-Larsen J. NMR and IR Investigations of Strong Intramolecular Hydrogen Bonds. Molecules 2017; 22:E552. [PMID: 28353675 PMCID: PMC6154318 DOI: 10.3390/molecules22040552] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/20/2017] [Accepted: 03/24/2017] [Indexed: 11/24/2022] Open
Abstract
For the purpose of this review, strong hydrogen bonds have been defined on the basis of experimental data, such as OH stretching wavenumbers, νOH, and OH chemical shifts, δOH (in the latter case, after correction for ring current effects). Limits for O-H···Y systems are taken as 2800 > νOH > 1800 cm-1, and 19 ppm > δOH > 15 ppm. Recent results as well as an account of theoretical advances are presented for a series of important classes of compounds such as β-diketone enols, β-thioxoketone enols, Mannich bases, proton sponges, quinoline N-oxides and diacid anions. The O···O distance has long been used as a parameter for hydrogen bond strength in O-H···O systems. On a broad scale, a correlation between OH stretching wavenumbers and O···O distances is observed, as demonstrated experimentally as well as theoretically, but for substituted β-diketone enols this correlation is relatively weak.
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Affiliation(s)
- Poul Erik Hansen
- Department of Science and Environment, Roskilde University, Universitetsvej 1, P.O. Box 260, DK-4000 Roskilde, Denmark.
| | - Jens Spanget-Larsen
- Department of Science and Environment, Roskilde University, Universitetsvej 1, P.O. Box 260, DK-4000 Roskilde, Denmark.
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Pozharskii AF, Ozeryanskii VA, Mikshiev VY, Antonov AS, Chernyshev AV, Metelitsa AV, Borodkin GS, Fedik NS, Dyablo OV. 10-Dimethylamino Derivatives of Benzo[h]quinoline and Benzo[h]quinazolines: Fluorescent Proton Sponge Analogues with Opposed peri-NMe2/–N═ Groups. How to Distinguish between Proton Sponges and Pseudo-Proton Sponges. J Org Chem 2016; 81:5574-87. [DOI: 10.1021/acs.joc.6b00917] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander F. Pozharskii
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
| | - Valery A. Ozeryanskii
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
| | - Vladimir Y. Mikshiev
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
| | - Alexander S. Antonov
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
| | - Anatoly V. Chernyshev
- Institute
of Physical and Organic Chemistry, Southern Federal University, Stachki
Ave. 194/2, 344090 Rostov-on-Don, Russian Federation
| | - Anatoly V. Metelitsa
- Institute
of Physical and Organic Chemistry, Southern Federal University, Stachki
Ave. 194/2, 344090 Rostov-on-Don, Russian Federation
| | - Gennady S. Borodkin
- Institute
of Physical and Organic Chemistry, Southern Federal University, Stachki
Ave. 194/2, 344090 Rostov-on-Don, Russian Federation
| | - Nikita S. Fedik
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
| | - Olga V. Dyablo
- Department
of Chemistry, Southern Federal University, Zorge str. 7, 344090 Rostov-on-Don, Russian Federation
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Isotope effects on chemical shifts in the study of intramolecular hydrogen bonds. Molecules 2015; 20:2405-24. [PMID: 25647577 PMCID: PMC6272349 DOI: 10.3390/molecules20022405] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 12/17/2014] [Accepted: 01/05/2015] [Indexed: 11/16/2022] Open
Abstract
The paper deals with the use of isotope effects on chemical shifts in characterizing intramolecular hydrogen bonds. Both so-called resonance-assisted (RAHB) and non-RAHB systems are treated. The importance of RAHB will be discussed. Another very important issue is the borderline between “static” and tautomeric systems. Isotope effects on chemical shifts are particularly useful in such studies. All kinds of intramolecular hydrogen bonded systems will be treated, typical hydrogen bond donors: OH, NH, SH and NH+, typical acceptors C=O, C=N, C=S C=N−. The paper will be deal with both secondary and primary isotope effects on chemical shifts. These two types of isotope effects monitor the same hydrogen bond, but from different angles.
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Pietrzak M, Grech E, Nowicka-Scheibe J, Hansen PE. Deuterium isotope effects on 13C chemical shifts of negatively charged NH…N systems. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:683-688. [PMID: 24038402 DOI: 10.1002/mrc.4000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 06/21/2013] [Accepted: 07/22/2013] [Indexed: 06/02/2023]
Abstract
Deuterium isotope effects on (13)C chemical shifts are investigated in anions of 1,8-bis(4-toluenesulphonamido)naphthalenes together with N,N-(naphthalene-1,8-diyl)bis(2,2,2-trifluoracetamide) all with bis(1,8-dimethylamino)napthaleneH(+) as counter ion. These compounds represent both "static" and equilibrium cases. NMR assignments of the former have been revised. The NH proton is deuteriated. The isotope effects on (13)C chemical shifts are rather unusual in these strongly hydrogen bonded systems between a NH and a negatively charged nitrogen atom. The formal four-bond effects are found to be negative indicating transmission via the hydrogen bond. In addition, unusual long range effects are seen. Structures, (1)H and (13)C NMR chemical shifts and changes in nuclear shieldings upon deuteriation are calculated using density functional theory methods.
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Affiliation(s)
- Mariusz Pietrzak
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224, Warsaw, Poland
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Pozharskii AF, Ozeryanskii VA. Proton Sponges and Hydrogen Transfer Phenomena. MENDELEEV COMMUNICATIONS 2012. [DOI: 10.1016/j.mencom.2012.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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7
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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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8
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Yamane K, Hayashi S, Nakanishi W, Sasamori T, Tokitoh N. Fine structures of 1-(arylethynylselanyl)naphthalenes: Characteristic features brought by the ethynylselanyl group. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.04.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bolz I, Moon C, Enkelmann V, Brunklaus G, Spange S. Probing Molecular Recognition in the Solid-State by Use of an Enolizable Chromophoric Barbituric Acid. J Org Chem 2008; 73:4783-93. [DOI: 10.1021/jo800598z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ina Bolz
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Chulsoon Moon
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Volker Enkelmann
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Gunther Brunklaus
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
| | - Stefan Spange
- Institut für Chemie, Technische Universität Chemnitz, D-09107 Chemnitz, Germany, and Max-Planck-Institut für Polymerforschung, Postfach 3148, D-55021 Mainz, Germany
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Pietrzak M, Benedict C, Gehring H, Daltrozzo E, Limbach HH. NMR studies and DFT calculations of the symmetric intramolecular NHN-hydrogen bond of bis-(2-pyridyl)-acetonitrile: Isotope labeling strategy for the indirect 13C-detection of 15N15N couplings. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2007.04.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sośnicki JG, Langaard M, Hansen PE. Long-range deuterium isotope effects on (13)C chemical shifts of intramolecularly hydrogen-bonded N-substituted 3-(cycloamine)thiopropionamides or amides: a case of electric field effects. J Org Chem 2007; 72:4108-16. [PMID: 17469874 DOI: 10.1021/jo070285z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of intramolecularly hydrogen-bonded N-substituted 3-(piperidine, morpholine, N-methylpiperazine)thiopropionamides and some corresponding amides have been studied with special emphasis on hydrogen bonding. The compounds have been selected in order to vary and to minimize the N...N distance. Geometries, charge distributions, and chemical shifts of these compounds are obtained from DFT-type BP3LYP calculations. 1H and 13C 1D and 2D NMR experiments were performed to obtain H,H coupling constants, 13C chemical shifts assignments, and deuterium isotope effects on13C chemical shifts. Variable-temperature NMR studies and 2D exchange NMR spectra have been used to describe the rather complicated conformational behavior mainly governed by the ring flipping of the piperidine (morpholine) rings and intramolecular hydrogen bonding. Unusual long-range deuterium isotope effects on 13C chemical shifts are observed over as far as eight bonds away from the site of deuteriation. The isotope effects are related to the N...N distances, thus being related to the hydrogen bonding and polarization of the N-H bond. Arguments are presented showing that the deuterium isotope effects on 13C chemical shifts originate in electric field effects.
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Affiliation(s)
- Jacek G Sośnicki
- Institute of Chemistry and Environmental Protection, Szczecin University of Technology, Aleja Piastów 42, 71065 Szczecin, Poland
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Chmielewski P, Ozeryanskii VA, Sobczyk L, Pozharskii AF. Primary1H/2H isotope effect in the NMR chemical shift of HClO4 salts of 1,8-bis(dimethylamino)naphthalene derivatives. J PHYS ORG CHEM 2007. [DOI: 10.1002/poc.1219] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hansen PE. Isotope effect on chemical shifts in hydrogen-bonded systems. J Labelled Comp Radiopharm 2007. [DOI: 10.1002/jlcr.1440] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ozeryanskii VA, Pozharskii AF, Schilf W, Kamieński B, Sawka-Dobrowolska W, Sobczyk L, Grech E. Novel Polyfunctional Tautomeric Systems Containing Salicylideneamino and Proton Sponge Moieties. European J Org Chem 2006. [DOI: 10.1002/ejoc.200500574] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Ozeryanskii VA, Pozharskii AF. A method for determination of the structure of the intramolecular hydrogen bond in the cations of unsymmetrically substituted 1,8-bis(dimethylamino)naphthalenes in solution. Russ Chem Bull 2006. [DOI: 10.1007/s11172-006-0231-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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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: 528] [Impact Index Per Article: 27.8] [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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Ozeryanskii VA, Pozharskii AF, Bieńko AJ, Sawka-Dobrowolska W, Sobczyk L. [NHN]+ Hydrogen Bonding in Protonated 1,8-Bis(dimethylamino)-2,7-dimethoxynaphthalene. X-ray Diffraction, Infrared, and Theoretical ab Initio and DFT Studies. J Phys Chem A 2005; 109:1637-42. [PMID: 16833488 DOI: 10.1021/jp040618l] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Structural (X-ray diffraction), infrared spectroscopic, and theoretical MP2 and DFT studies on the HBr and DBr adducts of 1,8-bis(dimethylamino)2,7-dimethoxynaphthalene ((CH3O)2.DMAN) were performed. This particular proton sponge has been chosen for its strong basicity and display of the buttressing effect influencing the hydrogen bond dynamics and properties. The studies revealed a symmetric, planar DMAN.H+ cation with a short (NHN)+ hydrogen bond of 2.567(3) A. The X-ray diffraction results suggest that the proton is in the central position in the bridge, while the calculations show two potential energy minima with the zero point energy level close to the top of the barrier. The infrared spectra display an (NHN)+ band at 488 cm(-1) and an (NDN)+ band at 235 cm(-1), respectively. It gives the isotopic ratio of 2.08, the highest value reported to date. Such a result suggests a peculiar shape of the potential for the proton motion, characterized by an extremely high positive anharmonicity. The calculations reproduce this particular potential, yielding an ISR value displaying a very good agreement with the experimental one. The anharmonic frequencies, however, show the discrepancy between the observed and calculated transitions.
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Affiliation(s)
- Valery A Ozeryanskii
- Department of Organic Chlemistry, Rostov- State University, Zorge 7, 344090 Rostov-on-Don, Russia
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Hansen PE, Filarowski A. Characterisation of the PT-form of o-hydroxy acylaromatic Schiff bases by NMR spectroscopy and DFT calculations. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.06.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Bieńko AJ, Latajka Z, Sawka-Dobrowolska W, Sobczyk L, Ozeryanskii VA, Pozharskii AF, Grech E, Nowicka-Scheibe J. Low barrier hydrogen bond in protonated proton sponge. X-ray diffraction, infrared, and theoretical ab initio and density functional theory studies. J Chem Phys 2003. [DOI: 10.1063/1.1594171] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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