Intense excimer CPL of pyrenes linked to a quaternaphthyl

Kazuto Takaishi; Ryosuke Takehana; Tadashi Ema

doi:10.1039/c7cc09187g

Intense excimer CPL of pyrenes linked to a quaternaphthyl

Kazuto Takaishi, Ryosuke Takehana, Tadashi Ema

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

59 Citations (Scopus)

Abstract

(R,R,R)-Quaternaphthyls possessing eight and six pyrenes (compounds 4 and 3) displayed intense excimer-CPL. The g_lum values in solution and in the solid state were +0.034-0.037 and +0.0053-0.0056, respectively. The g_lum values of 3 and 4 were indistinguishable, indicating that the pyrenes of 3 and 4 assumed the same conformation, even in excited states. The intense CPL was caused by conformationally rigid pyrenes arranged via the cumulative steric effects along the quaternaphthyl axis.

Original language	English
Pages (from-to)	1449-1452
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	12
DOIs	https://doi.org/10.1039/c7cc09187g
Publication status	Published - 2018

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1039/c7cc09187g

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title = "Intense excimer CPL of pyrenes linked to a quaternaphthyl",

abstract = "(R,R,R)-Quaternaphthyls possessing eight and six pyrenes (compounds 4 and 3) displayed intense excimer-CPL. The glum values in solution and in the solid state were +0.034-0.037 and +0.0053-0.0056, respectively. The glum values of 3 and 4 were indistinguishable, indicating that the pyrenes of 3 and 4 assumed the same conformation, even in excited states. The intense CPL was caused by conformationally rigid pyrenes arranged via the cumulative steric effects along the quaternaphthyl axis.",

author = "Kazuto Takaishi and Ryosuke Takehana and Tadashi Ema",

note = "Funding Information: We gratefully acknowledge funding from the JSPS KAKENHI (Grant No. JP17K05786), the Electric Technology Research Foundation of Chugoku, and the Wesco Scientific Promotion Foundation. We thank the N-BARD, Hiroshima University and JASCO Corporation for CPL measurements, and Otsuka Electronics Co., Ltd for FL measurements. Publisher Copyright: {\textcopyright} 2018 The Royal Society of Chemistry.",

year = "2018",

doi = "10.1039/c7cc09187g",

language = "English",

volume = "54",

pages = "1449--1452",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "12",

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T1 - Intense excimer CPL of pyrenes linked to a quaternaphthyl

AU - Takaishi, Kazuto

AU - Takehana, Ryosuke

AU - Ema, Tadashi

N1 - Funding Information: We gratefully acknowledge funding from the JSPS KAKENHI (Grant No. JP17K05786), the Electric Technology Research Foundation of Chugoku, and the Wesco Scientific Promotion Foundation. We thank the N-BARD, Hiroshima University and JASCO Corporation for CPL measurements, and Otsuka Electronics Co., Ltd for FL measurements. Publisher Copyright: © 2018 The Royal Society of Chemistry.

PY - 2018

Y1 - 2018

N2 - (R,R,R)-Quaternaphthyls possessing eight and six pyrenes (compounds 4 and 3) displayed intense excimer-CPL. The glum values in solution and in the solid state were +0.034-0.037 and +0.0053-0.0056, respectively. The glum values of 3 and 4 were indistinguishable, indicating that the pyrenes of 3 and 4 assumed the same conformation, even in excited states. The intense CPL was caused by conformationally rigid pyrenes arranged via the cumulative steric effects along the quaternaphthyl axis.

AB - (R,R,R)-Quaternaphthyls possessing eight and six pyrenes (compounds 4 and 3) displayed intense excimer-CPL. The glum values in solution and in the solid state were +0.034-0.037 and +0.0053-0.0056, respectively. The glum values of 3 and 4 were indistinguishable, indicating that the pyrenes of 3 and 4 assumed the same conformation, even in excited states. The intense CPL was caused by conformationally rigid pyrenes arranged via the cumulative steric effects along the quaternaphthyl axis.

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JO - Chemical Communications

JF - Chemical Communications

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Intense excimer CPL of pyrenes linked to a quaternaphthyl

Abstract

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