Domino-like multi-emissions across red and near infrared from solid-state 2-/2,6-aryl substituted BODIPY dyes

Nature Communications
Dan TianWei Huang

Abstract

Considerable achievements on multiple emission capabilities and tunable wavelengths have been obtained in inorganic luminescent materials. However, the development of organic counterparts remains a grand challenge. Herein we report a series of 2-/2,6-aryl substituted boron-dipyrromethene dyes with wide-range and multi-fluorescence emissions across red and near infrared in their aggregation states. Experimental data of X-ray diffraction, UV-vis absorption, and room temperature fluorescence spectra have proved the multiple excitation and easy-adjustable emission features in aggregated boron-dipyrromethene dyes. Temperature-dependent and time-resolved fluorescence studies have indicated a successive energy transfer from high to step-wisely lower-located energy levels that correspond to different excitation states of aggregates. Consistent quantum chemical calculation results have proposed possible aggregation modes of boron-dipyrromethene dyes to further support the above-described scenario. Thus, this study greatly enriches the fundamental recognition of conventional boron-dipyrromethene dyes by illustrating the relationships between multiple emission behaviors and the aggregation states of boron-dipyrromethene molecules.

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Citations

Jul 15, 2020·Biotechnology Journal·Yongyang LiuQiangbin Wang
Sep 24, 2020·Journal of Fluorescence·Yuriy S MarfinAndrei V Churakov
Dec 14, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Bhupendra Kumar DwivediDaya Shankar Pandey
Nov 12, 2019·Frontiers in Chemistry·Zhipeng LiuXiaoqing Wang
Apr 4, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Tianbao YangRenhua Qiu
Apr 24, 2021·Nature Communications·Kang LiZhipeng Liu
Jun 22, 2021·Organic Letters·Briana R SchrageChristopher J Ziegler
Sep 16, 2020·The Journal of Organic Chemistry·Tianbao YangRenhua Qiu
Dec 15, 2018·Journal of the American Chemical Society·Meihui SuChanghua Li
Oct 3, 2020·Journal of the American Chemical Society·Julius GemenRafal Klajn

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Methods Mentioned

BETA
X-ray
fluorescence studies
column chromatography
fluorescence spectroscopic studies

Software Mentioned

Gaussian
DAS6

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