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Erol ZN, Atienzar P, Arslanoğlu Y, Hamuryudan E, García H. Synthesis and photophysical properties of phthalocyanines having calixpyrrole units. RSC Adv 2015. [DOI: 10.1039/c5ra05830a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Calixpyrrole-armed metal phthalocyanine undergoes complexation by anions at the apical metal position upon light excitation.
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Affiliation(s)
- Zeynep Neslihan Erol
- Instituto Universitario de Tecnología Química CSIC-UPV
- Universidad Politécnica de Valencia
- 46022 Valencia
- Spain
- Department of Chemistry
| | - Pedro Atienzar
- Instituto Universitario de Tecnología Química CSIC-UPV
- Universidad Politécnica de Valencia
- 46022 Valencia
- Spain
| | | | - Esin Hamuryudan
- Department of Chemistry
- Istanbul Technical University
- 34469 Istanbul
- Turkey
| | - Hermenegildo García
- Instituto Universitario de Tecnología Química CSIC-UPV
- Universidad Politécnica de Valencia
- 46022 Valencia
- Spain
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Bohne C. Supramolecular dynamics studied using photophysics. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:9100-11. [PMID: 17042517 DOI: 10.1021/la061227w] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Dynamics is an essential feature of supramolecular systems, and it's understanding will be central in achieving new chemical function. The methodology to obtain association and dissociation rate constants for fast binding of guests to host systems in real time is described. Examples are provided for binding of guests to cyclodextrins or bile salt aggregates with an emphasis on the type of information and mechanistic insight that can only be uncovered from kinetic studies and is not apparent in thermodynamic investigations.
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Affiliation(s)
- Cornelia Bohne
- Department of Chemistry, University of Victoria, PO Box 3065, Victoria, British Columbia, Canada.
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Pace TCS, Monahan SL, MacRae AI, Kaila M, Bohne C. Photophysics of aminoxanthone derivatives and their application as binding probes for DNA. Photochem Photobiol 2006; 82:78-87. [PMID: 16097858 DOI: 10.1562/2005-05-16-ra-529] [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: 11/19/2022]
Abstract
Xanthones with amino substituents were synthesized to diminish the photoreactivity of the xanthone chromophore with DNA, with the objective of using these molecules to study their binding dynamics with DNA. The aminoxanthones showed a strong solvatochromic effect on their singlet and triplet excited-state photophysics, where polar solvents led to a decrease of the energies for the excited states. Quenching of the triplet excited states by nitrite anions was used to determine the binding dynamics, and a residence time in the microsecond time domain was estimated for the bound 2-aminoxanthone with DNA. The quenching experiments performed showed that this methodology will not be applicable to study the binding dynamics of a wide variety of guests with DNA.
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Affiliation(s)
- Tamara C S Pace
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
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Dyck ASM, Kisiel U, Bohne C. Dynamics for the Assembly of Pyrene−γ-Cyclodextrin Host−Guest Complexes. J Phys Chem B 2003. [DOI: 10.1021/jp035544c] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andria S. M. Dyck
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, B.C., Canada V8W 3V6
| | - Ursula Kisiel
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, B.C., Canada V8W 3V6
| | - Cornelia Bohne
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, B.C., Canada V8W 3V6
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7
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Okano LT, Barros TC, Chou DTH, Bennet AJ, Bohne C. Complexation Dynamics of Xanthone and Thioxanthone to β-Cyclodextrin Derivatives. J Phys Chem B 2001. [DOI: 10.1021/jp002622c] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- L. T. Okano
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6, and Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - T. C. Barros
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6, and Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - D. T. H. Chou
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6, and Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - A. J. Bennet
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6, and Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
| | - C. Bohne
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada, V8W 3V6, and Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6
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Murphy RS, Bohne C. Use of styrene radical cations as probes for the complexation dynamics of charged guests with alpha- and beta-cyclodextrins. Photochem Photobiol 2000; 71:35-43. [PMID: 10649887 DOI: 10.1562/0031-8655(2000)071<0035:uosrca>2.0.co;2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The complexation dynamics of radical cations with cyclodextrins (CD) was studied using photophysical techniques. Radical cations of 4-vinylanisole and trans-anethole were formed within alpha- and beta-CD cavities by two-photon photolysis of the respective styrene precursors. Exit of the radical cations from alpha-CD complexes with 1: 1 and 1:2 (guest: CD) stoichiometries and beta-CD complexes with 1:1 stoichiometries occurred with lifetimes shorter than 100 ns. Most of the radical cations formed escape from the CD cavities, but a small portion do react with alpha-CD when this host is present in high concentrations.
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Affiliation(s)
- R S Murphy
- Department of Chemistry, University of Victoria, B.C., Canada
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11
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Murphy RS, Barros TC, Barnes J, Mayer B, Marconi G, Bohne C. Complexation of Fluorenone and Xanthone to Cyclodextrins: Comparison of Theoretical and Experimental Studies. J Phys Chem A 1998. [DOI: 10.1021/jp9821681] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- R. S. Murphy
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | - T. C. Barros
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | - J. Barnes
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | - B. Mayer
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | - G. Marconi
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
| | - C. Bohne
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, BC, Canada V8W 3V6, Institute for Theoretical Chemistry and Radiation Chemistry, University of Vienna, UZAII, Althanstrasse 14, A-1090 Vienna, Austria, and Istituto FRAE-CNR, Via Gobetti 101, 40129 Bologna, Italy
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