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6833954 
Journal Article 
Synthesis and photophysical properties of a new BODIPY-based siloxane dye 
Pakhomov, AA; Kononevich, YN; Stukalova, MV; Svidchenko, EA; Surin, NM; Cherkaev, GV; Shchegolikhina, OI; Martynov, VI; Muzafarov, AM 
2016 
1 
Tetrahedron Letters
ISSN: 0040-4039
EISSN: 1873-3581 
57 
9 
979-982 
English 
WOS:000373408800003 
A fluorescent dye comprising four BODIPY derivatives conjugated to a cyclotetrasiloxane core was synthesized by consecutive hydrosilylation and esterification reactions. Photophysical properties of the dye in various organic solvents were investigated. It was shown that due to a fourfold extinction coefficient increase and a moderate quantum yield decrease the brightness of the tetra-BODIPY dye in low-polarity solvents, calculated per molecule, increased 3 times when compared to mono-BODIPY. By contrast, in polar solvents there was a dramatic drop in brightness apparently associated with intramolecular interactions of the low-polar BODIPY chromophores. 
article; Siloxane; Cyclotetrasiloxane; Hydrosilylation; Fluorescence; Solvatochromism; chemical structure; esterification; fluorescent dyes; organic compounds; solvents