Medium viscosity effect on fluorescent properties of Sn(IV)-tetra(4-sulfonatophenyl)porphyrin complexes in buffer solutions

Autor: Ilya A. Khodov, Victor V. Borovkov, Dmitriy A. Lazovskiy, Olga V. Maltceva, Oscar I. Koifman, Nugzar Zh. Mamardashvili, Galina M. Mamardashvili
Rok vydání: 2019
Předmět:
Zdroj: Journal of Molecular Liquids. 277:1047-1053
ISSN: 0167-7322
DOI: 10.1016/j.molliq.2018.12.118
Popis: Supramolecular triads consisting of hydrophilic Sn(IV)-tetra(4-sulfophenyl)-porphyrin and two axial guests such as propylphenol, tyrosine, and 2-(2-hydroxyphenyl)-benzoxazole were synthesized. The structures of synthesized complexes were identified by experimental spectroscopic and quantum-chemical simulation methods, and their fluorescent properties were studied in various viscosity media (mixed phosphate buffer-glycerin solvents of different composition). The effect of axial ligand structure on the fluorescent properties of these triads (due to the hydrogen bonding or π-π stacking between the components of «host-guest» systems) is discussed. The potential use of synthesized complexes as environmental probes of local viscosity is proposed.
Databáze: OpenAIRE