Patent ID: 8575384

Claim:
A silanol-containing triarylamine derivative represented by formula (1): wherein, R 1 to R 15 each independently represents a substituent selected from diarylamino groups represented by formula (2), linear, branched or cyclic monovalent hydrocarbon groups (which may contain the diarylamino group represented by the formula (2) as a substituent) having from 1 to 20 carbon atoms selected from the group consisting of: methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, isobutyl, tert-butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, vinyl, allyl, propenyl, butenyl; phenyl, tolyl; 2-phenylethyl, 3-phenylpropyl, and 4-phenylbutyl, alkoxy groups having from 1 to 20 carbon atoms, aryloxy groups having from 6 to 20 carbon atoms, halogen atoms, a hydrogen atom, and an amino group, with the proviso that at least one of R 1 , R 4 , R 6 , R 9 , R 11 , and R 14 is a substituent represented by the following formula: SiR 16 R 17 OH wherein, R 16 and R 17 each independently represents a linear, branched, or cyclic monovalent hydrocarbon group having from 1 to 20 carbon atoms selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, isobutyl, tert-butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, vinyl, allyl, propenyl, butenyl; phenyl, tolyl; 2-phenylethyl, 3-phenylpropyl, and 4-phenylbutyl, wherein, R 21 , R 23 , R 25 , R 26 , R 28 , and R 30 each independently represents a substituent selected from linear, branched, or cyclic monovalent hydrocarbon groups having from 1 to 20 carbon atoms selected from the group consisting of: methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, isobutyl, tert-butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, vinyl, allyl, propenyl, butenyl; phenyl, tolyl; 2-phenylethyl, 3-phenylpropyl, and 4-phenylbutyl, alkoxy groups having from 1 to 20 carbon atoms, aryloxy groups having from 6 to 20 carbon atoms, halogen atoms, a hydrogen atom, and an amino group; R 22 , R 24 , R 27 , and R 29 each independently represents a substituent selected from linear, branched, or cyclic monovalent hydrocarbon groups having from 1 to 20 carbon atoms selected from the group consisting of: methyl, ethyl, propyl, isopropyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, isobutyl, tert-butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, vinyl, allyl, propenyl, butenyl; phenyl, tolyl; 2-phenylethyl, 3-phenylpropyl, and 4-phenylbutyl, alkoxy groups having from 1 to 20 carbon atoms, aryloxy groups having from 6 to 20 carbon atoms, halogen atoms, a hydrogen atom, an amino group, and substituents represented by SiR 16 R 17 OH; with the proviso that without R 25 and R 26 , carbon atoms at ortho positions with respect to the nitrogen atom may be coupled to form a carbazole ring structure.