A new carbazole-based conjugated multibranched molecule and its tetramer as hole transporting materials

Tae Wan Lee; Hong Suk Kim; Min Ju Cho; Kyung Hwan Kim; Dong Hoon Choi

doi:10.1246/cl.2008.952

A new carbazole-based conjugated multibranched molecule and its tetramer as hole transporting materials

Tae Wan Lee, Hong Suk Kim, Min Ju Cho, Kyung Hwan Kim, Dong Hoon Choi

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A conjugated multibranched molecule, 1,3,5-tris{(E)-2-[9-hexyl-9H-carbazol- 3-yl]vinyl}benzene (THCEB) and its tetramer, 1,3,5-tris((E)-2- {9-[6-(3-{(E)-3,5-bis[(E)-2-(9-hexyl-9H-carbazol-3-yl)vinyl]styryl} -9H-carbazol-9-yl)hexyl]-9H-carbazol-3-yl}vinyl)benzene (4(THCEB)), have been synthesized through Heck coupling and Horner-Emmons reactions in moderately good yields. These compounds exhibited good selffilm-forming properties by spin coating. These two large molecules showed an absorption maxima at around 346-348 nm in their solution states. The maximum PL intensities of THCEB and 4(THCEB) films were commonly observed at around 450 nm, except for a strong emission band at 535 nm in THCEB. In the tetramer, the emission at 535 nm was highly suppressed. This observation was explained in terms of the time-resolved photophysical properties of these molecules with the help of a possible mechanism.

Original language	English
Pages (from-to)	952-953
Number of pages	2
Journal	Chemistry Letters
Volume	37
Issue number	9
DOIs	https://doi.org/10.1246/cl.2008.952
Publication status	Published - 2008 Sept 5

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.2008.952

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title = "A new carbazole-based conjugated multibranched molecule and its tetramer as hole transporting materials",

abstract = "A conjugated multibranched molecule, 1,3,5-tris{(E)-2-[9-hexyl-9H-carbazol- 3-yl]vinyl}benzene (THCEB) and its tetramer, 1,3,5-tris((E)-2- {9-[6-(3-{(E)-3,5-bis[(E)-2-(9-hexyl-9H-carbazol-3-yl)vinyl]styryl} -9H-carbazol-9-yl)hexyl]-9H-carbazol-3-yl}vinyl)benzene (4(THCEB)), have been synthesized through Heck coupling and Horner-Emmons reactions in moderately good yields. These compounds exhibited good selffilm-forming properties by spin coating. These two large molecules showed an absorption maxima at around 346-348 nm in their solution states. The maximum PL intensities of THCEB and 4(THCEB) films were commonly observed at around 450 nm, except for a strong emission band at 535 nm in THCEB. In the tetramer, the emission at 535 nm was highly suppressed. This observation was explained in terms of the time-resolved photophysical properties of these molecules with the help of a possible mechanism.",

author = "Lee, {Tae Wan} and Kim, {Hong Suk} and Cho, {Min Ju} and Kim, {Kyung Hwan} and Choi, {Dong Hoon}",

year = "2008",

month = sep,

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doi = "10.1246/cl.2008.952",

language = "English",

volume = "37",

pages = "952--953",

journal = "Chemistry Letters",

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T1 - A new carbazole-based conjugated multibranched molecule and its tetramer as hole transporting materials

AU - Lee, Tae Wan

AU - Kim, Hong Suk

AU - Cho, Min Ju

AU - Kim, Kyung Hwan

AU - Choi, Dong Hoon

PY - 2008/9/5

Y1 - 2008/9/5

N2 - A conjugated multibranched molecule, 1,3,5-tris{(E)-2-[9-hexyl-9H-carbazol- 3-yl]vinyl}benzene (THCEB) and its tetramer, 1,3,5-tris((E)-2- {9-[6-(3-{(E)-3,5-bis[(E)-2-(9-hexyl-9H-carbazol-3-yl)vinyl]styryl} -9H-carbazol-9-yl)hexyl]-9H-carbazol-3-yl}vinyl)benzene (4(THCEB)), have been synthesized through Heck coupling and Horner-Emmons reactions in moderately good yields. These compounds exhibited good selffilm-forming properties by spin coating. These two large molecules showed an absorption maxima at around 346-348 nm in their solution states. The maximum PL intensities of THCEB and 4(THCEB) films were commonly observed at around 450 nm, except for a strong emission band at 535 nm in THCEB. In the tetramer, the emission at 535 nm was highly suppressed. This observation was explained in terms of the time-resolved photophysical properties of these molecules with the help of a possible mechanism.

AB - A conjugated multibranched molecule, 1,3,5-tris{(E)-2-[9-hexyl-9H-carbazol- 3-yl]vinyl}benzene (THCEB) and its tetramer, 1,3,5-tris((E)-2- {9-[6-(3-{(E)-3,5-bis[(E)-2-(9-hexyl-9H-carbazol-3-yl)vinyl]styryl} -9H-carbazol-9-yl)hexyl]-9H-carbazol-3-yl}vinyl)benzene (4(THCEB)), have been synthesized through Heck coupling and Horner-Emmons reactions in moderately good yields. These compounds exhibited good selffilm-forming properties by spin coating. These two large molecules showed an absorption maxima at around 346-348 nm in their solution states. The maximum PL intensities of THCEB and 4(THCEB) films were commonly observed at around 450 nm, except for a strong emission band at 535 nm in THCEB. In the tetramer, the emission at 535 nm was highly suppressed. This observation was explained in terms of the time-resolved photophysical properties of these molecules with the help of a possible mechanism.

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DO - 10.1246/cl.2008.952

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A new carbazole-based conjugated multibranched molecule and its tetramer as hole transporting materials

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