Aggregation behavior and UV-vis spectra of tetra- and octaglycosylated zinc phthalocyanines

Autor:	Thomas Ziegler, Zafar Iqbal, Alexey Lyubimtsev, S. A. Syrbu, Göran Crucius, Ekaterina S. Taraymovich, Michael Hanack
Rok vydání:	2011
Předmět:	biology Chemistry Inorganic chemistry chemistry.chemical_element General Chemistry Zinc biology.organism_classification Photochemistry Spectral line chemistry.chemical_compound Ultraviolet visible spectroscopy Phthalocyanine Tetra Sugar
Zdroj:	Journal of Porphyrins and Phthalocyanines. 15:39-46
ISSN:	1099-1409 1088-4246
DOI:	10.1142/s1088424611002891
Popis:	Several tetra- and octaglycosylated PcZn 's 1a, 2a–2d, 3a-b and 4 were investigated for their aggregation behavior using different concentrations of the PcZn -species in pure DMSO, water and in various DMSO/water mixtures by comparing their UV-vis spectra. The PcZn 's 1–4 are independent of the concentration in pure DMSO and in up to 25 vol.% water/DMSO mixtures are non aggregated. Increasing amounts of water leads to higher aggregation ratios. The aggregation behavior is influenced by the nature and the position of the sugar substituents on the Pc-ring. PcZn 4 was found the least aggregated compound even in pure water.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bbc61af4b6a69b724b59b02a0e772691 https://doi.org/10.1142/s1088424611002891 Zobrazit plný text záznamu