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Kovač V, Kodrin I, Radošević K, Molčanov K, Adhikari B, Kraatz HB, Barišić L. Oxalamide-Bridged Ferrocenes: Conformational and Gelation Properties and In Vitro Antitumor Activity. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Veronika Kovač
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Ivan Kodrin
- Department of Organic Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102A, 10000 Zagreb, Croatia
| | - Kristina Radošević
- Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Krešimir Molčanov
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Bimalendu Adhikari
- Department of Chemistry, National Institute of Technology, Rourkela, Sundargarh 769008, Odisha, India
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario M1C 1A4, Canada
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Lidija Barišić
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
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Are There Magic Compositions in Deep Eutectic Solvents? Effects of Composition and Water Content in Choline Chloride/Ethylene Glycol from Ab Initio Molecular Dynamics. J Phys Chem B 2020; 124:7433-7443. [DOI: 10.1021/acs.jpcb.0c04844] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Kovačević M, Kodrin I, Roca S, Molčanov K, Shen Y, Adhikari B, Kraatz H, Barišić L. Helically Chiral Peptides That Contain Ferrocene‐1,1′‐diamine Scaffolds as a Turn Inducer. Chemistry 2017; 23:10372-10395. [DOI: 10.1002/chem.201701602] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Monika Kovačević
- Department of Chemistry and BiochemistryFaculty of Food Technology and BiotechnologyUniversity of Zagreb Pierottijeva 6 Zagreb Croatia
| | - Ivan Kodrin
- Department of ChemistryFaculty of ScienceUniversity of Zagreb Horvatovac 102a Zagreb Croatia
| | - Sunčica Roca
- NMR CentreRuđer Bošković Institute Bijenička cesta 54 Zagreb Croatia
| | - Krešimir Molčanov
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 Zagreb Croatia
| | - Yuning Shen
- Department of Physical and Environmental SciencesUniversity of Toronto 1265 Military Trail Toronto M1C 1 A4 Canada
| | - Bimalendu Adhikari
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, S. A. S. Nagar, Manauli PO Punjab 140306 India
| | - Heinz‐Bernhard Kraatz
- Department of Physical and Environmental SciencesUniversity of Toronto 1265 Military Trail Toronto M1C 1 A4 Canada
- Department of ChemistryUniversity of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Lidija Barišić
- Department of Chemistry and BiochemistryFaculty of Food Technology and BiotechnologyUniversity of Zagreb Pierottijeva 6 Zagreb Croatia
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Jagesar DC, Wiering PG, Kay ER, Leigh DA, Brouwer AM. Successive Translocation of the Rings in a [3]Rotaxane. Chemphyschem 2016; 17:1902-12. [PMID: 26918870 DOI: 10.1002/cphc.201501162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Indexed: 11/09/2022]
Abstract
A [2]rotaxane, a [3]rotaxane and the corresponding thread containing two succinamide (succ) binding stations and a central redox-active pyromellitimide (pmi) station were studied. Infrared spectroelectrochemical experiments revealed the translocation of the macrocycle between the succinamide station and the electrochemically reduced pmi station (radical anion and dianion). Remarkably, in the [3]rotaxane, the rings can be selectively translocated. One-electron reduction leads to the translocation of one of the two macrocycles from the succinamide to the pyromellitimide station, whereas activation of the shuttle through two-electron reduction results in the translocation of both macrocycles: the dianion, due to its higher electron density and hence greater hydrogen-bond accepting affinity, is hydrogen bonded to both macrocycles. Systems with such an on-command contraction are known as molecular muscles. The relative strengths of the binding between the macrocycle and the imide anions could be estimated from the hydrogen-bond-induced shifts in the C=O stretching frequencies of hydrogen-bond accepting amide groups of the macrocycle.
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Affiliation(s)
- Dhiredj C Jagesar
- University of Amsterdam, van 't Hoff Institute for Molecular Sciences, PO Box 94157, 1090 GD, Amsterdam, The Netherlands
| | - Piet G Wiering
- University of Amsterdam, van 't Hoff Institute for Molecular Sciences, PO Box 94157, 1090 GD, Amsterdam, The Netherlands
| | - Euan R Kay
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK.,EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - David A Leigh
- School of Chemistry, University of Edinburgh, The King's Buildings, West Mains Road, Edinburgh, EH9 3JJ, UK.,School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Albert M Brouwer
- University of Amsterdam, van 't Hoff Institute for Molecular Sciences, PO Box 94157, 1090 GD, Amsterdam, The Netherlands.
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Malberg F, Brandenburg JG, Reckien W, Hollóczki O, Grimme S, Kirchner B. Substitution effect and effect of axle's flexibility at (pseudo-)rotaxanes. Beilstein J Org Chem 2014; 10:1299-307. [PMID: 24991282 PMCID: PMC4077404 DOI: 10.3762/bjoc.10.131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/28/2014] [Indexed: 11/23/2022] Open
Abstract
This study investigates the effect of substitution with different functional groups and of molecular flexibility by changing within the axle from a single C-C bond to a double C=C bond. Therefore, we present static quantum chemical calculations at the dispersion-corrected density functional level (DFT-D3) for several Leigh-type rotaxanes. The calculated crystal structure is in close agreement with the experimental X-ray data. Compared to a stiffer axle, a more flexible one results in a stronger binding by 1-3 kcal/mol. Alterations of the binding energy in the range of 5 kcal/mol could be achieved by substitution with different functional groups. The hydrogen bond geometry between the isophtalic unit and the carbonyl oxygen atoms of the axle exhibited distances in the range of 2.1 to 2.4 Å for six contact points, which shows that not solely but to a large amount the circumstances in the investigated rotaxanes are governed by hydrogen bonding. Moreover, the complex with the more flexible axle is usually more unsymmetrical than the one with the stiff axle. The opposite is observed for the experimentally investigated axle with the four phenyl stoppers. Furthermore, we considered an implicit continuum solvation model and found that the complex binding is weakened by approximately 10 kcal/mol, and hydrogen bonds are slightly shortened (by up to 0.2 Å).
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Affiliation(s)
- Friedrich Malberg
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Jan Gerit Brandenburg
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Werner Reckien
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
| | - Barbara Kirchner
- Mulliken Center for Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstr. 4, 53115 Bonn, Germany
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Li SS, Huang CY, Hao JJ, Wang CS. A polarizable dipole-dipole interaction model for evaluation of the interaction energies for NH···OC and CH···OC hydrogen-bonded complexes. J Comput Chem 2013; 35:415-26. [DOI: 10.1002/jcc.23473] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 09/30/2013] [Accepted: 10/03/2013] [Indexed: 02/02/2023]
Affiliation(s)
- Shu-Shi Li
- Department of Chemistry; Liaoning Normal University; Dalian 116029 People's Republic of China
| | - Cui-Ying Huang
- Department of Chemistry; Liaoning Normal University; Dalian 116029 People's Republic of China
| | - Jiao-Jiao Hao
- Department of Chemistry; Liaoning Normal University; Dalian 116029 People's Republic of China
| | - Chang-Sheng Wang
- Department of Chemistry; Liaoning Normal University; Dalian 116029 People's Republic of China
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Panman MR, Bodis P, Shaw DJ, Bakker BH, Newton AC, Kay ER, Leigh DA, Buma WJ, Brouwer AM, Woutersen S. Time-resolved vibrational spectroscopy of a molecular shuttle. Phys Chem Chem Phys 2011; 14:1865-75. [PMID: 22033540 DOI: 10.1039/c1cp22146a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Time-resolved vibrational spectroscopy is used to investigate the inter-component motion of an ultraviolet-triggered two-station molecular shuttle. The operation cycle of this molecular shuttle involves several intermediate species, which are observable in the amide I and amide II regions of the mid-IR spectrum. Using ab initio calculations on specific parts of the rotaxane, and by comparing the transient spectra of the normal rotaxane with that of the N-deuterated version, we can assign the observed vibrational modes of each species occurring during the shuttling cycle in an unambiguous way. The complete time- and frequency-dependent data set is analyzed using singular value decomposition (SVD). Using a kinetic model to describe the time-dependent concentrations of the transient species, we derive the absorption spectra associated with each stage in the operation cycle of the molecular shuttle, including the recombination of the charged species.
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Affiliation(s)
- Matthijs R Panman
- Van't Hoff Insitute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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Rijs AM, Kay ER, Leigh DA, Buma WJ. IR Spectroscopy on Jet-Cooled Isolated Two-Station Rotaxanes. J Phys Chem A 2011; 115:9669-75. [DOI: 10.1021/jp200909v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anouk M. Rijs
- FOM Institute for Plasma Physics Rijnhuizen, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands
| | - Euan R. Kay
- School of Chemistry, University of Edinburgh, The King’s Building, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Edinburgh, The King’s Building, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Wybren Jan Buma
- University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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Abstract
First, different approaches to detect hydrogen bonds and to evaluate their energies are introduced newly or are extended. Supermolecular interaction energies of 256 dimers, each containing one single hydrogen bond, were correlated to various descriptors by a fit function depending both on the donor and acceptor atoms of the hydrogen bond. On the one hand, descriptors were orbital-based parameters as the two-center or three-center shared electron number, products of ionization potentials and shared electron numbers, and the natural bond orbital interaction energy. On the other hand, integral descriptors examined were the acceptor-proton distance, the hydrogen bond angle, and the IR frequency shift of the donor-proton stretching vibration. Whereas an interaction energy dependence on 1/r(3.8) was established, no correlation was found for the angle. Second, the fit functions are applied to hydrogen bonds in polypeptides, amino acid dimers, and water cluster, thus their reliability is demonstrated. Employing the fit functions to assign intramolecular hydrogen bond energies in polypeptides, several side chain CH...O and CH...N hydrogen bonds were detected on the fly. Also, the fit functions describe rather well intermolecular hydrogen bonds in amino acid dimers and the cooperativity of hydrogen bond energies in water clusters.
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Affiliation(s)
- Katharina Wendler
- Lehrstuhl für Theoretische Chemie, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Germany
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Sun CL, Wang CS. Estimation on the intramolecular hydrogen-bonding energies in proteins and peptides by the analytic potential energy function. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.theochem.2010.06.020] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rijs A, Sändig N, Blom M, Oomens J, Hannam J, Leigh D, Zerbetto F, Buma W. Controlled Hydrogen-Bond Breaking in a Rotaxane by Discrete Solvation. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201001231] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rijs A, Sändig N, Blom M, Oomens J, Hannam J, Leigh D, Zerbetto F, Buma W. Controlled Hydrogen-Bond Breaking in a Rotaxane by Discrete Solvation. Angew Chem Int Ed Engl 2010; 49:3896-900. [DOI: 10.1002/anie.201001231] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zahn S, Thar J, Kirchner B. Structure and dynamics of the protic ionic liquid monomethylammonium nitrate ([CH3NH3][NO3]) from ab initio molecular dynamics simulations. J Chem Phys 2010; 132:124506. [DOI: 10.1063/1.3354108] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kirchner B, Spickermann C, Reckien W, Schalley CA. Uncovering Individual Hydrogen Bonds in Rotaxanes by Frequency Shifts. J Am Chem Soc 2009; 132:484-94. [DOI: 10.1021/ja902628n] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Barbara Kirchner
- Lehrstuhl für Theoretische Chemie, Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, D-04103 Leipzig, Germany, and Organische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takusstrasse 3, D-14195 Berlin, Germany
| | - Christian Spickermann
- Lehrstuhl für Theoretische Chemie, Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, D-04103 Leipzig, Germany, and Organische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takusstrasse 3, D-14195 Berlin, Germany
| | - Werner Reckien
- Lehrstuhl für Theoretische Chemie, Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, D-04103 Leipzig, Germany, and Organische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takusstrasse 3, D-14195 Berlin, Germany
| | - Christoph A. Schalley
- Lehrstuhl für Theoretische Chemie, Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, D-04103 Leipzig, Germany, and Organische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin, Takusstrasse 3, D-14195 Berlin, Germany
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Deshmukh MM, Gadre SR. Estimation of N-H...O=C intramolecular hydrogen bond energy in polypeptides. J Phys Chem A 2009; 113:7927-32. [PMID: 19496581 DOI: 10.1021/jp9031207] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The previously proposed molecular tailoring approached (MTA) [Deshmukh, M. M.; Gadre, S. R.; Bartolotti, L. J. J. Phys. Chem. A 2006, 110, 12519] for the estimation of intramolecular O-H...O hydrogen bond energy is extended to that for the N-H...O=C bond within polypeptides. The methodology is initially tested on a tetrapeptide containing two types of N-H...O=C hydrogen bonds and is found to distinguish between them. The estimated values are in good agreement with the trends predicted by the geometrical parameters. Furthermore, this methodology is applied to partially as well as fully substituted, capped polyglycines that contain five glycine residues (acetyl-(gly)(5)-NH(2)) to check the effect of substituents on the energetics of hydrogen bonds. The estimated N-H...O=C bond energy values lie in the range of 4-6 kcal/mol. These estimated values are not only in concurrence with the geometric parameters but also able to reflect the subtle effects of substituents for the substituted polypeptides studied in the present work.
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Affiliation(s)
- Milind M Deshmukh
- Homi Bhabha Centre for Science Education, Tata Institute of Fundamental Research, V. N. Purav Marg, Mankhurd, Mumbai-400 088, India.
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Zahn S, Reckien W, Kirchner B, Staats H, Matthey J, Lützen A. Towards Allosteric Receptors: Adjustment of the Rotation Barrier of 2,2′-Bipyridine Derivatives. Chemistry 2009; 15:2572-80. [DOI: 10.1002/chem.200801374] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rijs AM, Compagnon I, Oomens J, Hannam JS, Leigh DA, Buma WJ. Stiff, and Sticky in the Right Places: Binding Interactions in Isolated Mechanically Interlocked Molecules Probed by Mid-Infrared Spectroscopy. J Am Chem Soc 2009; 131:2428-9. [DOI: 10.1021/ja808788c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anouk M. Rijs
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Isabelle Compagnon
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jos Oomens
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jeffrey S. Hannam
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - David A. Leigh
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Wybren J. Buma
- University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, FOM Institute for Plasma Physics “Rijnhuizen”, Edisonbaan 14, 3439 MN Nieuwegein, The Netherlands, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
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Jagesar D, Hartl F, Buma W, Brouwer A. Infrared Study of Intercomponent Interactions in a Switchable Hydrogen-Bonded Rotaxane. Chemistry 2008; 14:1935-46. [DOI: 10.1002/chem.200701531] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Spickermann C, Felder T, Schalley C, Kirchner B. How Can Rotaxanes Be Modified by Varying Functional Groups at the Axle?—A Combined Theoretical and Experimental Analysis of Thermochemistry and Electronic Effects. Chemistry 2008; 14:1216-27. [DOI: 10.1002/chem.200700479] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Reckien W, Spickermann C, Eggers M, Kirchner B. Theoretical energetic and vibrational analysis of amide-templated pseudorotaxanes. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.09.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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