Ancillary ligand-regulated Ti(IV)-based metallocalixarene coordination cages for photocatalytic H2 evolution

Yi-Qi Tian; Yun-Shu Cui; Jia-Hui Zhu; Cong-Qiao Xu; Xiao-Yi Yi; Jun Li; Chao Liu

doi:10.1039/D2CC03131K

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Ancillary ligand-regulated Ti(iv)-based metallocalixarene coordination cages for photocatalytic H₂ evolution†

Yi-Qi Tian,‡^a Yun-Shu Cui,‡^b Jia-Hui Zhu,^a Cong-Qiao Xu,

*^b Xiao-Yi Yi,

^a Jun Li

^bc and Chao Liu

*^a

Author affiliations

* Corresponding authors

^a Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, P. R. China
E-mail: chaoliu@csu.edu.cn

^b Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
E-mail: xucq@sustech.edu.cn

^c Department of Chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, 100084 Beijing, China

Abstract

High-valence Ti(IV)-based metallocalixarene coordination cages that are linked by oriented ancillary ligands are unknown so far. Herein, the first family of tunable calixarene-based coordination cages of Ti(IV) with a framework formula [Ti₁₂(OⁱPr)₁₂(TBC[4])₆L₆] have been assembled from six {Ti₂(OⁱPr)₂(TBC[4])}²⁺ nodes and six pyridinedicarboxylic ligands. Furthermore, the {Ti₁₂L₆} cage showed strong photocatalytic H₂ evolution activity, and DFT studies were performed to explore its electronic structure.

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Article information

DOI: https://doi.org/10.1039/D2CC03131K
Article type: Communication
Submitted: 02 Jun 2022
Accepted: 14 Jul 2022
First published: 15 Jul 2022

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Chem. Commun., 2022,58, 9034-9037

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Ancillary ligand-regulated Ti(IV)-based metallocalixarene coordination cages for photocatalytic H₂ evolution

Y. Tian, Y. Cui, J. Zhu, C. Xu, X. Yi, J. Li and C. Liu, Chem. Commun., 2022, 58, 9034 DOI: 10.1039/D2CC03131K

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Chemical Communications