TY - JOUR
T1 - Synthesis and photophysical properties of blue-color emitting compounds having multi N-methylanthranillic (MANT) chromophore
AU - Yamaji, Minoru
AU - Sano, Kanae
AU - Okamoto, Hideki
AU - Matsuo, Ichiro
N1 - Funding Information:
This work has been supported by a Arant-in-Aid for Scientific Research (JP26288032, JP17K05976 and JP18H02043) from the Japan Society for the Promotion of Science (JSPS) to MY and HO. MY acknowledges the technical staffs at Kyushu University for performing the HRMS spectrometry of the new compounds by using research equipment shared in MEXT Project for promoting public utilization of advanced research infrastructure (Program for supporting introduction of the new sharing system) Grant Number JPMXS0422300120. HAMAMATSU PHOTONICS K.K. is acknowledged for allowing MY to use the photon counting system (C11367).
Funding Information:
This work has been supported by a Arant-in-Aid for Scientific Research ( JP26288032 , JP17K05976 and JP18H02043 ) from the Japan Society for the Promotion of Science (JSPS) to MY and HO. MY acknowledges the technical staffs at Kyushu University for performing the HRMS spectrometry of the new compounds by using research equipment shared in MEXT Project for promoting public utilization of advanced research infrastructure (Program for supporting introduction of the new sharing system) Grant Number JPMXS0422300120 . HAMAMATSU PHOTONICS K.K. is acknowledged for allowing MY to use the photon counting system (C11367).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - We prepared various compounds having the N-methylaminoanthranyl (MANT) moiety tethered with oligomethylene chains, and investigated the photophysical features in solution and the solid state based on the fluorescence quantum yields and lifetimes, and quantum chemical calculation. The molar absorption coefficient and fluorescence quantum yield were enhanced by an increase of the number of the MANT chromophore, resulting in an increase of the brightness as emission probes. Solid-state blue emission at room temperature was observed with moderate fluorescence quantum yields. The fluorescence rates in the solid state were found to be similar those in solution. From the results of the transient absorption measurements, the photophysical deactivation pathways in the solution were discussed. The studied multi-MANT compounds could be applicable to emissive photonic crystals and an exciton generating source for blue-color OLED.
AB - We prepared various compounds having the N-methylaminoanthranyl (MANT) moiety tethered with oligomethylene chains, and investigated the photophysical features in solution and the solid state based on the fluorescence quantum yields and lifetimes, and quantum chemical calculation. The molar absorption coefficient and fluorescence quantum yield were enhanced by an increase of the number of the MANT chromophore, resulting in an increase of the brightness as emission probes. Solid-state blue emission at room temperature was observed with moderate fluorescence quantum yields. The fluorescence rates in the solid state were found to be similar those in solution. From the results of the transient absorption measurements, the photophysical deactivation pathways in the solution were discussed. The studied multi-MANT compounds could be applicable to emissive photonic crystals and an exciton generating source for blue-color OLED.
KW - Fluorescence lifetime
KW - Fluorescence quantum yield
KW - MANT
KW - Solid-state emission
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U2 - 10.1016/j.jphotochem.2020.112650
DO - 10.1016/j.jphotochem.2020.112650
M3 - Article
AN - SCOPUS:85086107145
VL - 400
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
SN - 1010-6030
M1 - 112650
ER -