1
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Kotera N, Montellano P, Catalán AC, Carrasco-Ruiz A, Cervantes R, Tiburcio J. Correlated translational motions in pseudo-rotaxane complexes controlled by a single chemical stimulus. Org Biomol Chem 2024; 22:1135-1140. [PMID: 38047705 DOI: 10.1039/d3ob01741a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Coordinated motions are essential in the operation of molecular machines. This feature can be achieved by landscaping the energy surface along the movement coordinates. Herein, we present an approach of using a single stimulus to modify the free energy curve describing the threading and shuttling of a ring along a linear molecule. This approach has been realized by locating two identical ring-binding sites near the axle termini.
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Affiliation(s)
- Naoko Kotera
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Pilar Montellano
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Aldo C Catalán
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Anayeli Carrasco-Ruiz
- Facultad de Ciencias Básicas, Ingeniería y Tecnología, Universidad Autónoma de Tlaxcala, Apizaco 90341, Tlaxcala, Mexico
| | - Ruy Cervantes
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
| | - Jorge Tiburcio
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Mexico City, 07360, Mexico.
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2
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Zhou JL, Li YH, Zhang YM, Chen L, Liu Y. Enhanced molecular binding affinity toward aromatic dications by anthracene-derived crown ethers in water. Org Biomol Chem 2022; 21:107-114. [PMID: 36484413 DOI: 10.1039/d2ob02010f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The pursuit of high molecular binding affinity using conventional crown ethers in water remains a challenging task in the field of supramolecular chemistry and may hold great promise in the creation of advanced biocompatible nanoconstructs. In this work, the molecular binding strength toward a series of structurally relevant cationic guests has been greatly enhanced by tetrasulfonated 1,5-dianthracenyl-42-crown-10 and as investigated by means of 1H NMR, UV-vis, and fluorescence spectroscopy, the host-guest association constants can reach up to 108 M-1 order of magnitude in aqueous solution. X-ray crystal diffraction analysis further demonstrates that the aromatic dication can be tightly encapsulated in the ring of anthracene-derived crown ether via multiple π-stacking and electrostatic interactions. Meanwhile, the obtained association constants are remarkably higher than the ones in the cases of the known benzene- and naphthalene-derived sulfonated crown ethers, substantiating that the appropriate extension of π-conjugation in the molecular skeleton of crown ether is a feasible method in attaining a highly affiliative host-guest complex. Taken together, our results indicate that the anthracene-based sulfonated crown ether can be developed as a new family of water-soluble macrocyclic receptors in the fabrication of functional nanoarchitectures.
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Affiliation(s)
- Jia-Liang Zhou
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Yan-Hong Li
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Ying-Ming Zhang
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Ling Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Yu Liu
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.
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3
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Woźny M, Trzybiński D, Dąbrowa K, Narodowiec J, Woźniak K. Monosulfonated dibenzo-24-crown-8 and its properties. Org Biomol Chem 2022; 20:5308-5318. [PMID: 35730366 DOI: 10.1039/d2ob00851c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we describe a method for preparing a monosulfonated dibenzo-24-crown-8 ether, SDB24C8, by direct sulfonation of the parent crown (DB24C8). Since neutral DB24C8 readily interacts with cationic guests, permanently charged SDB24C8 is an advantageous candidate for future supramolecular applications. SDB24C8 can be isolated as a sulfonic acid to be used as it is or converted to a salt of choice. The crystallographic analysis provides the first known host-guest assembly with a DB24C8-based scaffold complexing hydronium and potassium cations. Supramolecular investigations of the interactions of this anionic macrocycle with alkali cations were also performed. According to the expectations, the introduction of the sulfonic group into the DB24C8 scaffold increases the affinities of the receptor. An unusual selectivity of SDB24C8 towards a sodium cation was also observed and further investigated with DFT calculations.
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Affiliation(s)
- M Woźny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - D Trzybiński
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
| | - K Dąbrowa
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - J Narodowiec
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - K Woźniak
- Biological and Chemical Research Centre, Chemistry Department, University of Warsaw, Żwirki i Wigury 101, 02-089 Warszawa, Poland
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4
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Guarin CA, Mendoza-Luna LG, Haro-Poniatowski E, Hernández-Pozos JL. Two-photon absorption spectrum and characterization of the upper electronic states of the dye IR780. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 249:119291. [PMID: 33360055 DOI: 10.1016/j.saa.2020.119291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/16/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
In this work, the full two-photon absorption (2PA) spectrum of cyanine dye IR780 in methanol was measured and some important properties of the upper excited electronic states were investigated. Specifically, two IR780 2PA bands of intensities nearing 140 and 2800 Goeppert-Mayer (GM) were found. In order to determine the optical properties of the upper electronic singlet states, a deconvolution of the absorption peaks in the UV region of the spectrum was made. Based on this, properties such as transition dipole moments, oscillator strengths, absorption maxima in the UV-vis spectra, S2-S1 vibrational couplings and predictions of the lifetime of the second excited state were calculated. Moreover, by combining experimental and computational results, the 2PA transitions were assigned to the upper excited states S2 and S4. Cross-section magnitudes, positions and shapes of the 2PA bands have been satisfactorily explained with a four-state model that comprises the singlet states S1, S2 and S4. From these results, the cyanine investigated in the present work could be used as a novel and interesting moiety for more complex systems that respond to two-photon excitation.
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Affiliation(s)
- Cesar A Guarin
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México; Cátedras CONACYT - Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México.
| | - Luis Guillermo Mendoza-Luna
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México; Cátedras CONACYT - Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México.
| | - Emmanuel Haro-Poniatowski
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México
| | - José Luis Hernández-Pozos
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Av. San Rafael Atlixco No. 186 Col. Vicentina, C.P. 09340 México D.F., México
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5
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Singh AK, Rath SP. Intermacrocyclic Interactions upon Stepwise Oxidations in a Monometallic Porphyrin Dimer: Ring versus Metal‐Center Oxidations and Effect of Counter Anions. Chemistry 2020; 26:14405-14418. [DOI: 10.1002/chem.202002188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/15/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Akhil Kumar Singh
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Sankar Prasad Rath
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
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6
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Luna-Ixmatlahua RA, Carrasco-Ruiz A, Cervantes R, Vela A, Tiburcio J. An Anionic Ring Locked into an Anionic Axle: A Metastable Rotaxane with Chemically Activated Electrostatic Stoppers. Chemistry 2019; 25:14042-14047. [PMID: 31468580 DOI: 10.1002/chem.201902735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/28/2019] [Indexed: 02/03/2023]
Abstract
The use of the electrostatic stoppers concept in the field of mechanically interlocked molecules is reported; these stoppers are chemically sensitive end groups on a linear guest molecule that allows for the conversion of a pseudo-rotaxane species into a rotaxane complex by a change in the medium acidity. The chemical stimulus causes the appearance of negative charges on both ends of the linear component, passing from cationic to anionic, and causing a significant ring-to-axle electrostatic repulsion. This phenomenon has two different and simultaneous effects: 1) destabilizes the complex as a consequence of confining an anionic ring into an anionic axle, and 2) increases the dissociation energy barrier, thus impeding ring extrusion. This newly formed metastable rotaxane species is resistant to solvent and temperature effects and performs as a two-state degenerated molecular shuttle in solution.
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Affiliation(s)
- Rubi A Luna-Ixmatlahua
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Anayeli Carrasco-Ruiz
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Ruy Cervantes
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Alberto Vela
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
| | - Jorge Tiburcio
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), Avenida IPN 2508, Zacatenco, Mexico City, 07360, Mexico
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7
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Cruz-Vásquez O, Bernal-Sánchez LJ, Cervantes R, Tiburcio J, Rojas A. Energetics and the molecular structure of an ion-paired supramolecular system in water. Phys Chem Chem Phys 2017; 19:19334-19340. [PMID: 28703831 DOI: 10.1039/c7cp02955a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The forces that bind the components of a host-guest complex to generate a stable supramolecular system are noncovalent interactions. The enthalpy of this association, ΔasH°, usually measured using calorimetry, quantifies the magnitude of such interactions and is directly related to the stability of the supramolecular complex formed. Using Calvet calorimetry to determine the enthalpies of solution and reaction in water, the enthalpy of association was derived for a supramolecular system formed by the anionic macrocycle anti-disulfodibenzo[24]crown-8 ([DSDB24C8]2-) and the dicationic guest paraquat [PQT]2+. The calorimetric results show an exothermic association process, which indicates the generation of strong interactions between the components of the ion pair. This is consistent with the formation of a stable supramolecular complex [PQT][DSDB24C8], whose spatial arrangement in aqueous solution is proposed based on spectroscopic analysis.
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Affiliation(s)
- Octavio Cruz-Vásquez
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Ciudad de México, Mexico.
| | - Lan Jade Bernal-Sánchez
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Ciudad de México, Mexico.
| | - Ruy Cervantes
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Ciudad de México, Mexico.
| | - Jorge Tiburcio
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Ciudad de México, Mexico.
| | - Aarón Rojas
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del IPN (Cinvestav), Ciudad de México, Mexico.
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8
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Hernández-Melo D, Cervantes R, Tiburcio J. Shuttling Motion in a Host–Guest Complex Triggered by Spiropyran to Merocyanine Reversible Chemical Transformation. J Org Chem 2017; 82:4484-4488. [DOI: 10.1021/acs.joc.7b00509] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Denhy Hernández-Melo
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Ciudad de México 07360, México
| | - Ruy Cervantes
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Ciudad de México 07360, México
| | - Jorge Tiburcio
- Departamento de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Ciudad de México 07360, México
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9
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Khan FST, Pandey AK, Rath SP. Remarkable Anion-Dependent Spin-State Switching in Diiron(III) μ-Hydroxo Bisporphyrins: What Role do Counterions Play? Chemistry 2016; 22:16124-16137. [PMID: 27682429 DOI: 10.1002/chem.201603163] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Indexed: 12/20/2022]
Abstract
Addition of 2,4,6-trinitrophenol (HTNP) to an ethene-bridged diiron(III) μ-oxo bisporphyrin (1) in CH2 Cl2 initially leads to the formation of diiron(III) μ-hydroxo bisporphyrin (2⋅TNP) with a phenolate counterion that, after further addition of HTNP or dissolution in a nonpolar solvent, converts to a diiron(III) complex with axial phenoxide coordination (3⋅(TNP)2 ). The progress of the reaction from μ-oxo to μ-hydroxo to axially ligated complex has been monitored in solution by using 1 H NMR spectroscopy because their signals appear in three different and distinct spectral regions. The X-ray structure of 2⋅TNP revealed that the nearly planar TNP counterion fits perfectly within the bisporphyrin cavity to form a strong hydrogen bond with the μ-hydroxo group, which thus stabilizes the two equivalent iron centers. In contrast, such counterions as I5 , I3 , BF4 , SbF6 , and PF6 are found to be tightly associated with one of the porphyrin rings and, therefore, stabilize two different spin states of iron in one molecule. A spectroscopic investigation of 2⋅TNP has revealed the presence of two equivalent iron centers with a high-spin state (S=5/2) in the solid state that converts to intermediate spin (S=3/2) in solution. An extensive computational study by using a range of DFT methods was performed on 2⋅TNP and 2+ , and clearly supports the experimentally observed spin flip triggered by hydrogen-bonding interactions. The counterion is shown to perturb the spin-state ordering through, for example, hydrogen-bonding interactions, switched positions between counterion and axial ligand, ion-pair interactions, and charge polarization. The present investigation thus provides a clear rationalization of the unusual counterion-specific spin states observed in the μ-hydroxo bisporphyrins that have so far remained the most outstanding issue.
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Affiliation(s)
| | - Anjani Kumar Pandey
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sankar Prasad Rath
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
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10
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Carrasco-Ruiz A, Tiburcio J. Electrostatic Kinetic Barriers in the Threading/Dethreading Motion of a Rotaxane-like Complex. Org Lett 2015; 17:1858-61. [PMID: 25822091 DOI: 10.1021/acs.orglett.5b00530] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anayeli Carrasco-Ruiz
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), México D. F., México
| | - Jorge Tiburcio
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), México D. F., México
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11
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Hoijemberg PA, Moss RA, Feinblum DV, Krogh-Jespersen K. O-Ylide and π-Complex Formation in Reactions of a Carbene with Dibenzo and Monobenzo Crown Ethers. J Phys Chem A 2014; 118:6230-8. [DOI: 10.1021/jp506154s] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Pablo A. Hoijemberg
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Robert A. Moss
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - David V. Feinblum
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Karsten Krogh-Jespersen
- Department of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
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12
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Nikitin K, Müller-Bunz H, Muldoon J. Evaluation of weak interactions in [2]pseudorotaxanes. Chemphyschem 2014; 15:139-50. [PMID: 24399801 DOI: 10.1002/cphc.201300871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Indexed: 11/09/2022]
Abstract
Viologens readily thread bis-p-phenylene crown ethers to form [2]pseudorotaxanes. However, the binding of sterically hindered 3,3'-dimethylviologens is very weak. Density functional theory (DFT) calculations indicated that the additional energy cost of "flattening" is substantial, 55 kJ mol(-1), and prevents the formation of a stable host-guest complex. The structures of [2]pseudorotaxanes determined by X-ray crystallography are in good agreement with the NMR characterisation and DFT results. Their association constants and thermodynamic parameters in solution were measured by using a dilution method and, for the first time, by host-guest nuclear Overhauser effect (NOE) correlations. The NOE approach was subsequently applied to study the sterically hindered analogues and it was shown that the binding in 3,3'-dimethyl-N,N-dibenzyl [2]pseudorotaxane is by 8.5 kJ mol(-1) weaker than in its regular analogue. The proposed technique helps to quantify weak interactions in [2]pseudorotaxanes and can be applied to other host-guest complexes.
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Affiliation(s)
- Kirill Nikitin
- School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4 (Ireland), Fax: (+353) 01 7162127.
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13
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Jalilov AS, Patwardhan S, Singh A, Simeon T, Sarjeant AA, Schatz GC, Lewis FD. Structure and electronic spectra of purine-methyl viologen charge transfer complexes. J Phys Chem B 2014; 118:125-33. [PMID: 24294996 PMCID: PMC3930082 DOI: 10.1021/jp410348b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The structure and properties of the electron donor-acceptor complexes formed between methyl viologen and purine nucleosides and nucleotides in water and the solid state have been investigated using a combination of experimental and theoretical methods. Solution studies were performed using UV-vis and (1)H NMR spectroscopy. Theoretical calculations were performed within the framework of density functional theory (DFT). Energy decomposition analysis indicates that dispersion and induction (charge-transfer) interactions dominate the total binding energy, whereas electrostatic interactions are largely repulsive. The appearance of charge transfer bands in the absorption spectra of the complexes are well-described by time-dependent DFT and are further explained in terms of the redox properties of purine monomers and solvation effects. Crystal structures are reported for complexes of methyl viologen with the purines 2'-deoxyguanosine 3'-monophosphate (DAD'DAD' type) and 7-deazaguanosine (DAD'ADAD' type). Comparison of the structures determined in the solid state and by theoretical methods in solution provides valuable insights into the nature of charge-transfer interactions involving purine bases as electron donors.
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Affiliation(s)
| | | | - Arunoday Singh
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 20208-3113, United States
| | - Tomekia Simeon
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 20208-3113, United States
| | - Amy A. Sarjeant
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 20208-3113, United States
| | - George C. Schatz
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 20208-3113, United States
| | - Frederick D. Lewis
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER)Center, Northwestern University, 2145 Sheridan Road, Evanston, IL 20208-3113, United States
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14
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Moreno-Olivares SI, Cervantes R, Tiburcio J. Complexation of Imidazopyridine-Based Cations with a 24-Crown-8 Ether Host: [2]Pseudorotaxane and Partially Threaded Structures. J Org Chem 2013; 78:10724-31. [DOI: 10.1021/jo401701m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Surisadai I. Moreno-Olivares
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Avenida IPN 2508, Zacatenco 07360, México
D. F., México
| | - Ruy Cervantes
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Avenida IPN 2508, Zacatenco 07360, México
D. F., México
| | - Jorge Tiburcio
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), Avenida IPN 2508, Zacatenco 07360, México
D. F., México
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