Planar and sandwich-type Pr(III) and Nd(III) chlorinated phthalocyaninates: Synthesis, thermal stability and optical properties

Kuzmina, E.A.; Dubinina, T.V.; Borisova, N.E.; Tarasevich, B.N.; Krasovskii, V.I.; Feofanov, I.N.; Dzuban, A.V.; Tomilova, L.G.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 февраля 2020 г.

Авторы: Kuzmina Elena A., Dubinina Tatiana V., Borisova Nataliya E., Tarasevich Boris N., Krasovskii Vitaly I., Feofanov Ivan N., Dzuban Alexander V., Tomilova Larisa G.
Журнал: Dyes and Pigments
Том: 174
Год издания: 2020
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 108075
DOI: 10.1016/j.dyepig.2019.108075
Аннотация: A direct synthetic approach to four single-decker and one double-decker novel Pr(III) and Nd(III) complexes with 2,3,9,10,16,17,23,24-octachlorophthalocyaninate and 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadecachlorophthalocyaninate has been developed. Synthesis of hexadeca-Cl-substituted Nd(III) bisphthalocyaninate has been carried out utilizing two preformed synthetic blocks: Nd(III) octachlorophthalocyaninate acetate and octachlorophthalocyanine ligand. Due to the electron withdrawing effect of 16 chlorine groups, this Nd(III) bisphthalocyaninate was obtained as a redox stable anionic form. Upfield lanthanide-induced shifts of the aromatic proton signals (up to 2.04 ppm for Pr(III) octachlorophthalocyaninate acetate) were observed in the 1H NMR spectra of the obtained phthalocyaninates. Thermal stability of the lanthanide (III) complexes was examined using thermogravimetric analysis combined with mass-spectrometry. The double-decker compound was shown to possess an increased thermal stability in comparison with the single-deckers up to ~400 °C. Linear and nonlinear optical properties of the Cl-substituted Nd(III) and Pr(III) phthalocyaninates have been investigated using z-scan technique. The best nonlinear optical response with the highest excited state absorption cross-section (σ1 = 1.1 × 10−15 cm−2) was found for the hexadeca-Cl-substituted Nd(III) monophthalocyaninate.
Добавил в систему: Дзубан Александр Владимирович

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Planar and sandwich-type Pr(III) and Nd(III) chlorinated phthalocyaninates: Synthesis, thermal stability and optical propertiesстатья Исследовательская статья

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