%A Zhang,Mei-Li
%A Zhai,Zhi-Min
%A Yang,Xiao-Gang
%A Huang,Ya-Dan
%A Zheng,Yan-Jin
%A Ma,Lu-Fang
%D 2020
%J Frontiers in Chemistry
%C
%F
%G English
%K Metal-organic framework,Room temperature phosphorescence,Photoelectron performance,host-guest,π-stacking
%Q
%R 10.3389/fchem.2020.593948
%W
%L
%M
%P
%7
%8 2020-November-11
%9 Original Research
%#
%! Near-Infrared Phosphorescence MOF
%*
%<
%T Near-Infrared Phosphorescence Emission of Binuclear Mn(II) Based Metal-Organic Framework for Efficient Photoelectric Conversion
%U https://www.frontiersin.org/articles/10.3389/fchem.2020.593948
%V 8
%0 JOURNAL ARTICLE
%@ 2296-2646
%X The development of metal-organic framework (MOF) based room-temperature phosphorescence (RTP) materials has raised extensive concern owing to their widespread applications in the field of anti-counterfeiting, photovoltaics, photocatalytic reactions, and bio-imaging. Herein, one new binuclear Mn(II) based 3D MOF [Mn2(L)(BMIB)·(H2O)] (1) (H5L = 3,5-bis(3,5-dicarboxylphenxoy) benzoic acid, BMIB = tran-4-bis(2-methylimidazolyl)butylene) has been synthesized by a facile hydrothermal process. In 1, the protonated BMIB cations show infinite π-stacking arrangement, residing in the channels of the 3D network extended by L ligand and binuclear Mn(II) units. The orderly and uniform host-guest system at molecular level emits intense white light fluorescence and long-lived near infrared phosphorescence under ambient conditions. These photophysical processes were well-studied by density functional theory (DFT) calculations. Photoelectron measurements reveal high photoelectron response behavior and incident photon-to-current efficiency (IPCE).