Реферат: The formation and optical properties of J aggregates of pseudoisocyanine iodide in solid films in the presence of cluster anionic derivatives of boron hydrides and carboranes (B10H102-, B12H122-, B20H182-, [Ni-IV(1,2-B9C2H11)(2)](0), 1,2-B9C2H12-, [Co(1,2-B9C2H11)(2)](-), [Ni(1,2-B9C2H11)(2)](-) B10H8I22-, [Sn(1,2- B9C2H11)](0)) are studied. It is shown that the addition of anions B10H102- or B10H8I22- leads to an efficient formation of stable J aggregates. The addition of carborane complex of nickel [Ni-IV(1,2-B9C2H11)(2)](0) also leads to the formation of J aggregates, although less stable ones. Carborane complex of tin [Sn-II(1,2-B9C2H11)](0) facilitates the formation of a monomeric form of the dye. The remaining compounds yield no distinct pattern of formation of a certain monomeric or J-aggregated film structure. With the aid of the semiempirical AM1 method, the charge distributions in the cation of the dye and anionic derivatives of the boron hydrides are calculated. It is supposed that the bipolar distribution of a negative charge in the B10H102- anion facilitates the formation of a J aggregate. By addition of salts of organic cations to a film of pseudoisocyanine-closo-hydrodecaborate (PCG), J aggregates with a narrow width of the J peak are obtained. The thermal decay of J aggregates in these films is studied. On the basis of the data obtained (the presence of an isosbestic point upon thermal decomposition of J aggregates and their reaggregation; the narrowing and increasing of the J absorption peak, as well as increasing of luminescence, upon dilution of a J-aggregated PCG film with organic cations; and the bipolar character of the electrostatic interaction of the B10H102- anion with the dye), it is assumed that the J peak of pseudoisocyanine in the films studied corresponds to the absorption of a dimeric form of the dye. (C) 2004 MAIK "Nauka/Interperiodica".

Библиографическая ссылка: Shelkovnikov V.V. , Ivanova Z.M. , Orlova N.A. , Volkov V.V. , Drozdova M.K. , Myakishev K.G. , Plekhanov A.I.
Optical properties of solid pseudoisocyanine films doped with cluster derivatives of boron hydrides
Optics and Spectroscopy (English translation of Optika i Spektroskopiya). 2004. V.96. N6. P.824-833. DOI: 10.1134/1.1771414 WOS Scopus РИНЦ

Оригинальная версия: Шелковников В.В. , Иванова З.М. , Орлова Н.А. , Волков В.В. , Дроздова М.К. , Мякишев К.Г. , Плеханов А.И.
Оптические свойства твердых пленок псевдоизоцианина, допированных кластерными производными гидридов бора
Оптика и спектроскопия/OPTIKA I SPEKTROSKOPIYA. 2004. Т.96. №6. С.899-908. РИНЦ

Даты:

Опубликована в печати:	1 нояб. 2004 г.
Опубликована online:	13 апр. 2014 г.

Идентификаторы:

Web of science	WOS:000222712500004
Scopus	2-s2.0-3943089080
РИНЦ	13458143
OpenAlex	W2058309220

Альметрики: