Phthalocyanine-triphenylamine dyads: Synthesis, electrochemical, spectral and DFT study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F17%3A10374974" target="_blank" >RIV/00216208:11160/17:10374974 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0143720816311639" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0143720816311639</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.dyepig.2017.02.025" target="_blank" >10.1016/j.dyepig.2017.02.025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phthalocyanine-triphenylamine dyads: Synthesis, electrochemical, spectral and DFT study

Popis výsledku v původním jazyce

A(3)B type unsymmetrical magnesium and zinc phthalocyanines with annelated thiazole ring connected to the triphenylamine moiety via ethylene bridge were designed and synthesized. Such tailored molecules showed the typical pattern for phthalocyanines (Soret and Q-band) in their electronic absorption spectra together with an absorption in the region 400-500 nm. According to the DFT calculations the latter is assigned to the charge-transfer band originating from the triphenylamine-phthalocyanine core transition as a donor-acceptor system. Photophysical properties were affected by the central metal cation, Zn(II) causes an increase in the singlet oxygen quantum yield, reaching a value of 0.68 whereas Mg(II) gives only 0.50. On the other hand, the fluorescence quantum yield was proportionally higher for magnesium derivative with quantum yield of 0.51 while only 0.32 for the zinc complex. The photophysical and photochemical properties of prepared magnesium and zinc phthalocyanines were compared with the unsubstituted zinc phthalocyanine for determination of the substitution effect.

Název v anglickém jazyce

Phthalocyanine-triphenylamine dyads: Synthesis, electrochemical, spectral and DFT study

Popis výsledku anglicky

A(3)B type unsymmetrical magnesium and zinc phthalocyanines with annelated thiazole ring connected to the triphenylamine moiety via ethylene bridge were designed and synthesized. Such tailored molecules showed the typical pattern for phthalocyanines (Soret and Q-band) in their electronic absorption spectra together with an absorption in the region 400-500 nm. According to the DFT calculations the latter is assigned to the charge-transfer band originating from the triphenylamine-phthalocyanine core transition as a donor-acceptor system. Photophysical properties were affected by the central metal cation, Zn(II) causes an increase in the singlet oxygen quantum yield, reaching a value of 0.68 whereas Mg(II) gives only 0.50. On the other hand, the fluorescence quantum yield was proportionally higher for magnesium derivative with quantum yield of 0.51 while only 0.32 for the zinc complex. The photophysical and photochemical properties of prepared magnesium and zinc phthalocyanines were compared with the unsubstituted zinc phthalocyanine for determination of the substitution effect.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30104 - Pharmacology and pharmacy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dyes and Pigments

ISSN

0143-7208

e-ISSN

—

Svazek periodika

141

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

448-456

Kód UT WoS článku

000399852700053

EID výsledku v databázi Scopus

2-s2.0-85014484134