Physico-chemical properties of β-diketone phosphorus-containing dendrimers

Тип публікації :
Стаття
Дата випуску :
2017
Автор(и) :
Starova, Viktoriia
Ianchuk, Mykhailo
Zaporozhets, Olga
Caminade, Anne-Marie
Мова основного тексту :
Англійська
eKNUTSHIR URL :
DOI :
Журнал :
Том :
5
Випуск :
2
ISSN :
2312-3222
Початкова сторінка :
128
Кінцева сторінка :
135
Цитування :
[APA 7] Starova, V., Ianchuk, M., Zaporozhets, O., & Caminade, A. (2017). Physico-chemical properties of β-diketone phosphorus-containing dendrimers. French-Ukrainian Journal of Chemistry, 5(2), 128–135. https://doi.org/10.17721/fujcV5I2P128-135
[ДСТУ] Physico-chemical properties of β-diketone phosphorus-containing dendrimers / V. Starova et al. French-Ukrainian Journal of Chemistry. 2017. Vol. 5, no. 2. P. 128—135. DOI: 10.17721/fujcV5I2P128-135 (date of access: 18.07.2026).
Protolytic, absorbance and fluorescence properties of β-diketone phosphorus-containing dendrimers based on cyclotriphosphazene core were studied. Dendrimer solutions in acetone are characterized by intense absorbance band at ≈ 340 nm (ε340≈ 8.5·104L/mol·сm) and fluorescence band with maximum at 440 nm. Position of these maxima does not change in various solvents, unlike the bands of monomer β-diketone. It was found that dendrimer aggregation is accompanied by appearance of a second absorbance band ε400≈ 4.5·103L/mol·сm, by red shift of emission spectra ∆λ ≈ 10 nm and also by decrease in surface tension of acetone solution. Ability of dendrimer aggregates to solubilize organic substrates was observed with the fluorescent indicator acridine.
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