NIR-II absorption and photothermal conversion in a photochromic metal–organic framework based on cis-2,2′-biquinoline-4,4′-dicarboxylate

Ning-Ning Zhang; Ya-Ru Li; Li Li; Wei-Li Zheng; Lin-Xu Liu; Zhen-Yu Li; Yunyun Dong; Jinsheng Zhao; Kong-Gang Qu; Yong Yan

doi:10.1039/D4DT02865A

NIR-II absorption and photothermal conversion in a photochromic metal–organic framework based on cis-2,2′-biquinoline-4,4′-dicarboxylate†

Ning-Ning Zhang,

^a Ya-Ru Li,^a Li Li,

^c Wei-Li Zheng,^a Lin-Xu Liu,^a Zhen-Yu Li,^bd Yunyun Dong,

^a Jinsheng Zhao,*^a Kong-Gang Qu

*^a and Yong Yan

*^ad

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* Corresponding authors

^a School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252000, P. R. China
E-mail: j.s.zhao@163.com, qukonggang@lcu.edu.cn, yanyong1036@gmail.com

^b School of Environmental and Material Engineering, Yantai University, Yantai 264005, P. R. China

^c School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, P. R. China

^d State Key Laboratory Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, P. R. China

Abstract

A BCA cis-coordinated MOF (1) was initially discovered to exhibit electron transfer photochromism. Remarkably, the photogenerated radicals (1P) showed a maximum absorption enhancement peak at 1158 nm, resulting from the synergistic effects of planar π-conjugation induced by cis-coordination and π–π interactions among [BCA]˙˙ radicals, thereby promoting the NIR-II photothermal effect.

Dalton Transactions

NIR-II absorption and photothermal conversion in a photochromic metal–organic framework based on cis-2,2′-biquinoline-4,4′-dicarboxylate†

Abstract

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NIR-II absorption and photothermal conversion in a photochromic metal–organic framework based on cis-2,2′-biquinoline-4,4′-dicarboxylate

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