Synthesis and photochromic reactivity of macromolecules incorporating four dithienylethene units

Il Jung; Hyunbong Choi; Eunkyoung Kim; Chai Ho Lee; Sang Ook Kang; Jaejung Ko

doi:10.1016/j.tet.2005.09.099

Synthesis and photochromic reactivity of macromolecules incorporating four dithienylethene units

Il Jung, Hyunbong Choi, Eunkyoung Kim, Chai Ho Lee, Sang Ook Kang, Jaejung Ko

Department of Chemical and Biomolecular Engineering

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

58 Citations (Scopus)

Abstract

Two macrocycles bearing four dithienylethene units were synthesized. Upon irradiation of the macrocycles 5 and 6 with ultraviolet light, only one or two photo-induced cyclization reaction occurs. Each isomers were isolated and analyzed by ¹H NMR spectrum. The quantum yield of 5 and 6 are 0.58 and 0.64, respectively. The high value is due to the presence of enforced antiparallel conformation in the macrocycles 5 and 6.

Original language	English
Pages (from-to)	12256-12263
Number of pages	8
Journal	Tetrahedron
Volume	61
Issue number	52
DOIs	https://doi.org/10.1016/j.tet.2005.09.099
Publication status	Published - 2005 Dec 26

Bibliographical note

Funding Information:
This work was supported by the KOSEF through National Research Laboratory (NRL 2005) program awarded to J.K.

All Science Journal Classification (ASJC) codes

Biochemistry
Drug Discovery
Organic Chemistry

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10.1016/j.tet.2005.09.099

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title = "Synthesis and photochromic reactivity of macromolecules incorporating four dithienylethene units",

abstract = "Two macrocycles bearing four dithienylethene units were synthesized. Upon irradiation of the macrocycles 5 and 6 with ultraviolet light, only one or two photo-induced cyclization reaction occurs. Each isomers were isolated and analyzed by 1H NMR spectrum. The quantum yield of 5 and 6 are 0.58 and 0.64, respectively. The high value is due to the presence of enforced antiparallel conformation in the macrocycles 5 and 6.",

author = "Il Jung and Hyunbong Choi and Eunkyoung Kim and Lee, {Chai Ho} and Kang, {Sang Ook} and Jaejung Ko",

note = "Funding Information: This work was supported by the KOSEF through National Research Laboratory (NRL 2005) program awarded to J.K.",

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T1 - Synthesis and photochromic reactivity of macromolecules incorporating four dithienylethene units

AU - Jung, Il

AU - Choi, Hyunbong

AU - Kim, Eunkyoung

AU - Lee, Chai Ho

AU - Kang, Sang Ook

AU - Ko, Jaejung

N1 - Funding Information: This work was supported by the KOSEF through National Research Laboratory (NRL 2005) program awarded to J.K.

PY - 2005/12/26

Y1 - 2005/12/26

N2 - Two macrocycles bearing four dithienylethene units were synthesized. Upon irradiation of the macrocycles 5 and 6 with ultraviolet light, only one or two photo-induced cyclization reaction occurs. Each isomers were isolated and analyzed by 1H NMR spectrum. The quantum yield of 5 and 6 are 0.58 and 0.64, respectively. The high value is due to the presence of enforced antiparallel conformation in the macrocycles 5 and 6.

AB - Two macrocycles bearing four dithienylethene units were synthesized. Upon irradiation of the macrocycles 5 and 6 with ultraviolet light, only one or two photo-induced cyclization reaction occurs. Each isomers were isolated and analyzed by 1H NMR spectrum. The quantum yield of 5 and 6 are 0.58 and 0.64, respectively. The high value is due to the presence of enforced antiparallel conformation in the macrocycles 5 and 6.

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DO - 10.1016/j.tet.2005.09.099

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VL - 61

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EP - 12263

JO - Tetrahedron

JF - Tetrahedron

IS - 52

ER -

Synthesis and photochromic reactivity of macromolecules incorporating four dithienylethene units

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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