Synthesis, spectral properties, cation-induced dimerization and photochemical stability of tetra-(15-crown-5)-phthalocyaninato indium(III)

Autor:	Vladimir Ivanov, Aslan Yu. Tsivadze, Nikita Yu. Konstantinov, L. A. Lapkina, Dmitry Gil, Yulia G. Gorbunova
Rok vydání:	2013
Předmět:	chemistry.chemical_compound chemistry 15-Crown-5 Singlet oxygen Indium acetylacetonate Proton NMR chemistry.chemical_element Hydroxide General Chemistry Nuclear magnetic resonance spectroscopy Photochemistry Spectroscopy Indium
Zdroj:	Journal of Porphyrins and Phthalocyanines. 17:564-572
ISSN:	1099-1409 1088-4246
DOI:	10.1142/s1088424613500648
Popis:	The novel 2,3,9,10,16,17,23,24-tetra-(15-crown-5)phthalocyaninato indium(III) hydroxide [(15 C 5)4 Pc ] In ( OH )(I) was obtained by direct interaction of tetra-(15-crown-5)-phthalocyanine with indium acetylacetonate with 90% yield. The set of UV-vis, 1 H NMR and MALDI-TOF spectroscopy data allowed the unambiguous interpretation of complex structure. It was shown that the developed synthetic approach can be also used for synthesis of indium(III) 2,3,9,10,16,17,23,24-octabutoxyphthalocyanine [( BuO )8 Pc ] In ( OH )(II). Photophysical characteristics (fluorescence and singlet oxygen quantum yields) of I were established. The photochemical stability of I was compared with tetra-(15-crown-5)-phthalocyanine H 2[(15 C 5)4 Pc ] and aluminum(III) complex [(15 C 5)4 Pc ] Al ( OH ). It was found that cation-induced formation of cofacial dimers [2I × 4MX] ( M = K +, Rb +, X = CO 32-, OPic -, OPiv -, SO 42-, ClO 4-, Br -) resulted in significant enhancement of complex photostability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4e72be405891443854dc35b9b41fb57 https://doi.org/10.1142/s1088424613500648 Zobrazit plný text záznamu