Branched Oligoarylsilanes and Method for Producing Same

Branched oligoarylsilanes of general formula (I),

• where R stands for a substituent from the row:
• linear or branched C1-C20 alkyl groups;
• linear or branched C1-C20 alkyl groups, separated by at least one oxygen atom;
• linear or branched C1-C20 alkyl groups, separated by at least one sulfur atom;
• branched C3-C20 alkyl groups, separated by at least one silicon atom;
• C2-C20 alkenyl groups,
• Ar stands for identical or different arylene or hetetoarylene radicals, selected from the row:
• substituted or unsubstituted thienyl-2,5-diyl of general formula (II-a)
• substituted or unsubstituted phenyl-1,4-diyl of general formula (II-b)
• substituted or unsubstituted 1,3-oxazole-2,5-diyl of general formula (II-c)
• substituted fluorene-4,4′-diyl of general formula (II-d)
• substituted cyclopentathiophene-2,7-diyl of general formula (II-e)
• where R1, R2, R3, R4, R5, independently on each other stand for H or a substituent from the aforementioned row for R;
• R6, R7, R8, R9 stands for a substituent from the aforementioned row for R,
• Q stands for a radical from the aforementioned row for Ar,
• X stands for at least one radical, selected from the aforementioned row for Ar and/or a radical from the row:
• 2,1,3-benzothiodiazole-4,7-diyl
• of general formula (II-f), antracene-9,10-diyl of formula (II-g)
• 1,3,4-oxadiazole-2,5-diyl of general formula (II-h)
• 1-phenyl-2-pyrazoline-3,5-diyl of general formula (II-i)
• perylene-3,10-diyl of general formula (II-j)
• n stands for an integer from the row from 2 to 4.
• m stands for an integer from the row from 1 to 3
• k stands for an integer from the row from 1 to 3.