Investigation of the Spectral Properties of Noncovalent Complexes of a Polysubstituted Water-Soluble Derivative of the C60 Fullerene and Chlorin e6 in Polar Solvents


Дәйексөз келтіру

Толық мәтін

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Аннотация

Using methods of absorption and fluorescence spectroscopy, we show that noncovalent complexes based on a water-soluble fullerene derivative and chlorin e6 dissolved either in water or in ethanol are formed as a result of electrostatic interactions. The formation of these complexes causes a red shift of the absorption spectrum of chlorin e6 and efficient quenching of the intensity of its fluorescence. The Stern–Volmer quenching constants of complexes in water and ethanol are 7.3 × 105 and 2 × 105 M–1, respectively. We show that, in an aqueous solution, the complex consists, on average, of one molecule of the water-soluble fullerene derivative and three dye molecules, whereas this ratio in ethanol is 1 : 1.

Авторлар туралы

N. Goryachev

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow State University; Moscow Region State University

Email: kotel@icp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Moscow, 119991; Moscow, 105005

A. Belik

Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: kotel@icp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432

A. Rybkin

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow Region State University

Email: kotel@icp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Moscow, 105005

P. Mikhailov

Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences; Moscow State University

Email: kotel@icp.ac.ru
Ресей, Moscow, 119991; Moscow, 119991

O. Kraevaya

Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: kotel@icp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432

P. Troshin

Skolkovo Institute of Science and Technology; Institute of Problems of Chemical Physics, Russian Academy of Sciences

Email: kotel@icp.ac.ru
Ресей, SkolkovoMoscow, 121205; Chernogolovka, Moscow oblast, 142432

A. Kotel’nikov

Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow State University

Хат алмасуға жауапты Автор.
Email: kotel@icp.ac.ru
Ресей, Chernogolovka, Moscow oblast, 142432; Moscow, 119991

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