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Luo H, Bu K, Yin Y, Wang D, Shi C, Guo S, Fu T, Liang J, Liu B, Zhang D, Xu LJ, Hu Q, Ding Y, Jin S, Yang W, Ma B, Lü X. Anomalous Charge Transfer from Organic Ligands to Metal Halides in Zero-Dimensional [(C 6 H 5 ) 4 P] 2 SbCl 5 Enabled by Pressure-Induced Lone Pair-π Interaction. Angew Chem Int Ed Engl 2023; 62:e202304494. [PMID: 37464980 DOI: 10.1002/anie.202304494] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
Low-dimensional (low-D) organic metal halide hybrids (OMHHs) have emerged as fascinating candidates for optoelectronics due to their integrated properties from both organic and inorganic components. However, for most of low-D OMHHs, especially the zero-D (0D) compounds, the inferior electronic coupling between organic ligands and inorganic metal halides prevents efficient charge transfer at the hybrid interfaces and thus limits their further tunability of optical and electronic properties. Here, using pressure to regulate the interfacial interactions, efficient charge transfer from organic ligands to metal halides is achieved, which leads to a near-unity photoluminescence quantum yield (PLQY) at around 6.0 GPa in a 0D OMHH, [(C6 H5 )4 P]2 SbCl5 . In situ experimental characterizations and theoretical simulations reveal that the pressure-induced electronic coupling between the lone-pair electrons of Sb3+ and the π electrons of benzene ring (lp-π interaction) serves as an unexpected "bridge" for the charge transfer. Our work opens a versatile strategy for the new materials design by manipulating the lp-π interactions in organic-inorganic hybrid systems.
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Affiliation(s)
- Hui Luo
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Kejun Bu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Yanfeng Yin
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
| | - Dong Wang
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Cuimi Shi
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Songhao Guo
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Tonghuan Fu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Jiayuan Liang
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Bingyan Liu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Dongzhou Zhang
- Hawaii Institute of Geophysics and Planetology University of Hawaii Manoa Honolulu, 96822, Honolulu, HI, USA
| | - Liang-Jin Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Qingyang Hu
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Yang Ding
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Shengye Jin
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, Liaoning, China
| | - Wenge Yang
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
| | - Biwu Ma
- Department of Chemistry and Biochemistry, Florida State University, 32306, Tallahassee, FL, USA
| | - Xujie Lü
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 201203, Shanghai, China
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