NOVEL BRANCHED OLIGOARYLSILANES AND SYNTHESIS METHOD THEREOF Russian patent published in 2014 - IPC C08G77/60 C09K11/06 

FIELD: chemistry.

SUBSTANCE: disclosed are novel branched oligoarylsilanes of general formula (I) , where R denotes a substitute selected from: linear or branched C₁-C₂₀ alkyl groups; including separated by at least one oxygen or sulphur atom; branched C₃-C₂₀ alkyl groups, separated by at least one silicon atom; C₂-C₂₀ alkenyl groups; Ar denotes identical or different arylene or heteroarylene radicals selected from: substituted or unsubstituted thienyl-2,5-diiyl, substituted or unsubstituted phenyl-1,4-diiyl, substituted or unsubstituted 1,3-oxazole-2,5-diiyl, substituted fluorene-4,4'-diiyl, substituted cyclopentadithiophene-2,7-diiyl; Q denotes a radical selected from the series for Ar; X denotes at least one radical selected from the series for Ar and/or a radical selected from: 2,1,3-benzothiiodiazole-4,7-diiyl, anthracene-9,10-diiyl, 1,3,4-oxadiazole-2,5-diiyl, 1-phenyl-2-pyrazoline-3,5-diiyl, perylene-3,10-diiyl; n is an integer from 2 to 4; m is an integer from 1 to 3; k is an integer from 1 to 3. Also disclosed is a method of producing said compounds.

EFFECT: obtaining novel compounds characterised by high luminescence efficiency, efficient intramolecular energy transfer from some molecule fragments to others and high thermal stability.

20 cl, 5 dwg, 1 tbl, 15 ex