The Luminescence of Pd and Pt Benzohydroporphyrazines in the Near-IR Range

Першукевич, П. П.; Volkovich, D. I.; Макарова, Е. А.; Luk’yanets, E. A.; Solovyov, K. N.

doi:10.1134/s0030400x20110181

Cited by 3 publications

(3 citation statements)

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“…Toluene dissolves InCl-EtioP-I well and, when mixed with diethyl ether in a ratio of 1:2, forms a glassy matrix upon freezing to 77 K, which is necessary for carrying out relevant spectral and photophysical studies. It was assumed that the addition of methyl iodide does not practically deteriorate the quality of the frozen transparent matrix, but increases the intensity of the phosphorescence [4,27], which is the manifestation of the external heavy atom effect. The solutions were frozen in cryostat with a quartz Dewar vessel, where the samples were fully immersed in the liquid nitrogen.…”

Section: Methodsmentioning

confidence: 99%

“…A xenon short-arc lamp XBO-150W/1 (OSRAM) was used as an excitation source. Fluorescence was detected by the cooled photomultipliers FEU-100 (230-800 nm) and FEU-62 (600-1100 nm) operating in the photon-counting mode [27].…”

Section: Spectral Measurementsmentioning

confidence: 99%

“…The decay curve parameters (characteristic decay times and relative integrated luminescence intensities) were calculated using a DAS6 program by Horiba Scientific (see Ref. [27] for more details).…”

Section: Spectral Measurementsmentioning

confidence: 99%

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Luminescence of In(III)Cl-etioporphyrin-I

Koptyaev,

Zhabanov,

Pakhomov

et al. 2023

IJMS

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The luminescent and photophysical properties of the etioporphyrin-I complex with indium(III) chloride, InCl-EtioP-I were experimentally studied at room and liquid nitrogen temperatures in pure and mixed toluene solutions. At 77 K, in a 1:2 mixture of toluene with diethyl ether, the quantum yield of phosphorescence reaches 10.2%, while the duration of phosphorescence is 17 ms. At these conditions, the ratio of phosphorescence-to-fluorescence integral intensities is equal to 26.1, which is the highest for complexes of this type. At 298 K, the quantum yield of the singlet oxygen generation is maximal in pure toluene (81%). Quantum-chemical calculations of absorption and fluorescence spectra at temperatures of 77 K and 298 K qualitatively coincide with the experimental data. The InCl-EtioP-I compound will further be used as a photoresponsive material in thin-film optoelectronic devices.

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Section: Methodsmentioning

confidence: 99%

Section: Spectral Measurementsmentioning

confidence: 99%