Syntheses and photophysical properties of aminobenzopyranoxanthene dyes containing various alkyl chains at amine moieties

Shinichiro Kamino; Masaru Tanioka; Daisuke Sawada; Shuichi Enomoto

doi:10.3987/COM-16-S(S)65

Syntheses and photophysical properties of aminobenzopyranoxanthene dyes containing various alkyl chains at amine moieties

Shinichiro Kamino, Masaru Tanioka, Daisuke Sawada, Shuichi Enomoto

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

3 Citations (Scopus)

Abstract

Aminobenzopyranoxanthene (ABPX) dyes containing linear n-alkyl chains at amino groups were synthesized, and their cis and trans stereoisomers were isolated. Detailed spectrophotometric studies revealed that all the ABPX derivatives exhibited fluorescence emission in the far-red and near-infrared wavelength regions, and their fluorescence quantum efficiency increased with increasing n-alkyl chain length. Almost no differences in photophysical properties were observed between the cis and trans stereoisomers.

Original language	English
Pages (from-to)	1167-1176
Number of pages	10
Journal	Heterocycles
Volume	95
Issue number	2
DOIs	https://doi.org/10.3987/COM-16-S(S)65
Publication status	Published - 2017

ASJC Scopus subject areas

Analytical Chemistry
Pharmacology
Organic Chemistry

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abstract = "Aminobenzopyranoxanthene (ABPX) dyes containing linear n-alkyl chains at amino groups were synthesized, and their cis and trans stereoisomers were isolated. Detailed spectrophotometric studies revealed that all the ABPX derivatives exhibited fluorescence emission in the far-red and near-infrared wavelength regions, and their fluorescence quantum efficiency increased with increasing n-alkyl chain length. Almost no differences in photophysical properties were observed between the cis and trans stereoisomers.",

author = "Shinichiro Kamino and Masaru Tanioka and Daisuke Sawada and Shuichi Enomoto",

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AU - Kamino, Shinichiro

AU - Tanioka, Masaru

AU - Sawada, Daisuke

AU - Enomoto, Shuichi

PY - 2017

Y1 - 2017

N2 - Aminobenzopyranoxanthene (ABPX) dyes containing linear n-alkyl chains at amino groups were synthesized, and their cis and trans stereoisomers were isolated. Detailed spectrophotometric studies revealed that all the ABPX derivatives exhibited fluorescence emission in the far-red and near-infrared wavelength regions, and their fluorescence quantum efficiency increased with increasing n-alkyl chain length. Almost no differences in photophysical properties were observed between the cis and trans stereoisomers.

AB - Aminobenzopyranoxanthene (ABPX) dyes containing linear n-alkyl chains at amino groups were synthesized, and their cis and trans stereoisomers were isolated. Detailed spectrophotometric studies revealed that all the ABPX derivatives exhibited fluorescence emission in the far-red and near-infrared wavelength regions, and their fluorescence quantum efficiency increased with increasing n-alkyl chain length. Almost no differences in photophysical properties were observed between the cis and trans stereoisomers.

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