Highly Emissive, Optically Active Poly(diphenylacetylene) Having a Bulky Chiral Side Group

Hyojin Kim; Kyo Un Seo; Young Jae Jin; Chang Lyoul Lee; Masahiro Teraguchi; Takashi Kaneko; Toshiki Aoki; Giseop Kwak

doi:10.1021/acsmacrolett.6b00184

Highly Emissive, Optically Active Poly(diphenylacetylene) Having a Bulky Chiral Side Group

Hyojin Kim
, Kyo Un Seo
, Young Jae Jin
, Chang Lyoul Lee
, Masahiro Teraguchi
, Takashi Kaneko
, Toshiki Aoki
, Giseop Kwak

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

25 Scopus citations

Abstract

A highly emissive, optically active poly(diphenylacetylene) derivative, NpSi∗-PDPA, was synthesized by introducing a bulky chiral pendant group into the polymer chain. NpSi∗-PDPA exists in a glassy state having a highly disordered and amorphous structure. Hence, the fractional free volume is quite high, i.e., 0.29. NpSi∗-PDPA emits a green light in solution and a yellow light in film. This polymer is quite emissive, as the photoluminescence (PL) quantum yield is 56.1% in solution and 6.2% in film, and the PL lifetime is relatively long, 1.71 ns in solution and 1.05 ns in film. NpSi∗-PDPA shows the strongest circular dichroism (CD) signal at 384 nm, with a magnitude of circular polarization (g_CD) of 0.90 × 10^-3 and an optical rotation of 110° (4.30 × 10^-3 g mL^-1, in CHCl₃). The CD intensity is significantly increased by annealing at 80 °C, reaching an equilibrium at g_CD of 7.10 × 10^-3 after 72 h.

Original language	English
Pages (from-to)	622-625
Number of pages	4
Journal	ACS Macro Letters
Volume	5
Issue number	5
DOIs	https://doi.org/10.1021/acsmacrolett.6b00184
State	Published - 17 May 2016

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@article{53d70c402da6419aae70546b34eab5b5,

title = "Highly Emissive, Optically Active Poly(diphenylacetylene) Having a Bulky Chiral Side Group",

abstract = "A highly emissive, optically active poly(diphenylacetylene) derivative, NpSi∗-PDPA, was synthesized by introducing a bulky chiral pendant group into the polymer chain. NpSi∗-PDPA exists in a glassy state having a highly disordered and amorphous structure. Hence, the fractional free volume is quite high, i.e., 0.29. NpSi∗-PDPA emits a green light in solution and a yellow light in film. This polymer is quite emissive, as the photoluminescence (PL) quantum yield is 56.1\% in solution and 6.2\% in film, and the PL lifetime is relatively long, 1.71 ns in solution and 1.05 ns in film. NpSi∗-PDPA shows the strongest circular dichroism (CD) signal at 384 nm, with a magnitude of circular polarization (gCD) of 0.90 × 10-3 and an optical rotation of 110° (4.30 × 10-3 g mL-1, in CHCl3). The CD intensity is significantly increased by annealing at 80 °C, reaching an equilibrium at gCD of 7.10 × 10-3 after 72 h.",

author = "Hyojin Kim and Seo, \{Kyo Un\} and Jin, \{Young Jae\} and Lee, \{Chang Lyoul\} and Masahiro Teraguchi and Takashi Kaneko and Toshiki Aoki and Giseop Kwak",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = may,

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doi = "10.1021/acsmacrolett.6b00184",

language = "English",

volume = "5",

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T1 - Highly Emissive, Optically Active Poly(diphenylacetylene) Having a Bulky Chiral Side Group

AU - Kim, Hyojin

AU - Seo, Kyo Un

AU - Jin, Young Jae

AU - Lee, Chang Lyoul

AU - Teraguchi, Masahiro

AU - Kaneko, Takashi

AU - Aoki, Toshiki

AU - Kwak, Giseop

PY - 2016/5/17

Y1 - 2016/5/17

N2 - A highly emissive, optically active poly(diphenylacetylene) derivative, NpSi∗-PDPA, was synthesized by introducing a bulky chiral pendant group into the polymer chain. NpSi∗-PDPA exists in a glassy state having a highly disordered and amorphous structure. Hence, the fractional free volume is quite high, i.e., 0.29. NpSi∗-PDPA emits a green light in solution and a yellow light in film. This polymer is quite emissive, as the photoluminescence (PL) quantum yield is 56.1% in solution and 6.2% in film, and the PL lifetime is relatively long, 1.71 ns in solution and 1.05 ns in film. NpSi∗-PDPA shows the strongest circular dichroism (CD) signal at 384 nm, with a magnitude of circular polarization (gCD) of 0.90 × 10-3 and an optical rotation of 110° (4.30 × 10-3 g mL-1, in CHCl3). The CD intensity is significantly increased by annealing at 80 °C, reaching an equilibrium at gCD of 7.10 × 10-3 after 72 h.

AB - A highly emissive, optically active poly(diphenylacetylene) derivative, NpSi∗-PDPA, was synthesized by introducing a bulky chiral pendant group into the polymer chain. NpSi∗-PDPA exists in a glassy state having a highly disordered and amorphous structure. Hence, the fractional free volume is quite high, i.e., 0.29. NpSi∗-PDPA emits a green light in solution and a yellow light in film. This polymer is quite emissive, as the photoluminescence (PL) quantum yield is 56.1% in solution and 6.2% in film, and the PL lifetime is relatively long, 1.71 ns in solution and 1.05 ns in film. NpSi∗-PDPA shows the strongest circular dichroism (CD) signal at 384 nm, with a magnitude of circular polarization (gCD) of 0.90 × 10-3 and an optical rotation of 110° (4.30 × 10-3 g mL-1, in CHCl3). The CD intensity is significantly increased by annealing at 80 °C, reaching an equilibrium at gCD of 7.10 × 10-3 after 72 h.

UR - https://www.scopus.com/pages/publications/84969857854

U2 - 10.1021/acsmacrolett.6b00184

DO - 10.1021/acsmacrolett.6b00184

M3 - Article

AN - SCOPUS:84969857854

SN - 2161-1653

VL - 5

SP - 622

EP - 625

JO - ACS Macro Letters

JF - ACS Macro Letters

IS - 5

ER -

Highly Emissive, Optically Active Poly(diphenylacetylene) Having a Bulky Chiral Side Group

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