Microwave assisted synthesis, photophysical and redox properties of (phenothiazinyl)vinyl-pyridinium dyes

被引：23

作者：

Gaina, Luiza ^{[1
]}

Torje, Ioana ^{[1
]}

Gal, Emese ^{[1
]}

Lupan, Alexandru ^{[1
]}

Bischin, Cristina ^{[1
]}

Silaghi-Dumitrescu, Radu ^{[1
]}

Damian, Grigore ^{[2
]}

Loennecke, Peter ^{[3
]}

Cristea, Castelia ^{[1
]}

Silaghi-Dumitrescu, Luminita ^{[1
]}

机构：

[1] Univ Babes Bolyai, Fac Chem & Chem Engn, RO-400028 Cluj Napoca, Romania

[2] Univ Babes Bolyai, Fac Phys, RO-400082 Cluj Napoca, Romania

[3] Univ Leipzig, Inst Anorgan Chem, D-04103 Leipzig, Germany

来源：

DYES AND PIGMENTS | 2014年 / 102卷

关键词：

Phenothiazine; Alkyl-pyridinium cation; Microwaves assisted organic synthesis; UV-Vis absorption; DFT; Prooxidant reactivity; ELECTROCHEMICAL PROPERTIES; QUATERNARY-SALTS; APPROXIMATION; HEMOGLOBIN; REFINEMENT; ABSORPTION; ASCORBATE; BINDING; LIGAND; STATES;

D O I：

10.1016/j.dyepig.2013.10.044

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

New cationic cyanine dyes, containing electron donor 10-alkyl-phenothiazine and electron acceptor pyridinium units connected through a vinylene bridge were conveniently synthesized by microwaves assisted condensation of phenothiazine carbaldehyde with methylpyridinium salts in dry media. Their photophysical properties revealing strong absorption bands in 440-470 nm region (epsilon approximate to 10(4)-10(5)) and large Stokes shifts of fluorescence emission (610-750 nm) in solid state were supported by computational data using TDDFT level of theory. The redox behavior of PVP was studied by means of electrochemical and biocatalytical oxidation processes. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：315 / 325

页数：11

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