Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups
Photophysical properties of two novel guanidiniocarbonyl (I) and monocyclic guanidine (II) tetraphenylporphyrins and their interaction with DNA were investigated by steady-state and time-resolved absorption and emission spectroscopies. I stays predominantly monomeric in aqueous solutions. It produce...
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| Format: | Article |
| Language: | English |
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Wiley
2001-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/S1110662X01000186 |
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| author | Pavel Kubát Kamil Lang Vladimír Král Franz P. Schmidtchen |
| author_facet | Pavel Kubát Kamil Lang Vladimír Král Franz P. Schmidtchen |
| author_sort | Pavel Kubát |
| collection | DOAJ |
| description | Photophysical properties of two novel guanidiniocarbonyl (I) and monocyclic guanidine (II)
tetraphenylporphyrins and their interaction with DNA were investigated by steady-state and time-resolved
absorption and emission spectroscopies. I stays predominantly monomeric in aqueous solutions. It produces
singlet oxygen with high quantum yield (ΦΔ=0.67) that is typical for monomeric porphyrins. The electronic
absorption spectra of I are not influenced by interaction with DNA. This is in contrast with monomeric tetratolylporphyrins
bearing phosphonium,ammonium and pyridinium groups where the formation of stable
complexes with DNA is accompanied by a characteristic red shift of the Soret band. II extensively forms Hand
J-aggregates,which do not produce singlet oxygen (ΦΔ<0.01). In the presence of DNA only a small
fraction of II remains in monomeric form that is bound to DNA exterior. |
| format | Article |
| id | doaj-art-f72bd40360224c00bcf8d57d881c7cfd |
| institution | Kabale University |
| issn | 1110-662X |
| language | English |
| publishDate | 2001-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-f72bd40360224c00bcf8d57d881c7cfd2025-02-03T00:59:50ZengWileyInternational Journal of Photoenergy1110-662X2001-01-013314715110.1155/S1110662X01000186Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groupsPavel Kubát0Kamil Lang1Vladimír Král2Franz P. Schmidtchen3J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, Praha 8 182 23, Czech RepublicInstitute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, Řeř 250 68, Czech RepublicPrague Institute of Chemical Technology, Technická 5, Praha 6 166 28, Czech RepublicDepartment of Organic Chemistry and Biochemistry, Technical University, Lichtenberg Strasse 5, Graching, München D-85747, GermanyPhotophysical properties of two novel guanidiniocarbonyl (I) and monocyclic guanidine (II) tetraphenylporphyrins and their interaction with DNA were investigated by steady-state and time-resolved absorption and emission spectroscopies. I stays predominantly monomeric in aqueous solutions. It produces singlet oxygen with high quantum yield (ΦΔ=0.67) that is typical for monomeric porphyrins. The electronic absorption spectra of I are not influenced by interaction with DNA. This is in contrast with monomeric tetratolylporphyrins bearing phosphonium,ammonium and pyridinium groups where the formation of stable complexes with DNA is accompanied by a characteristic red shift of the Soret band. II extensively forms Hand J-aggregates,which do not produce singlet oxygen (ΦΔ<0.01). In the presence of DNA only a small fraction of II remains in monomeric form that is bound to DNA exterior.http://dx.doi.org/10.1155/S1110662X01000186 |
| spellingShingle | Pavel Kubát Kamil Lang Vladimír Král Franz P. Schmidtchen Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups International Journal of Photoenergy |
| title | Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| title_full | Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| title_fullStr | Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| title_full_unstemmed | Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| title_short | Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| title_sort | photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups |
| url | http://dx.doi.org/10.1155/S1110662X01000186 |
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