Evaluation of Intermolecular Weak Binding Through the Zero‐Field Splitting of an Endofullerene High‐Spin Probe
Abstract
Abstract Weak binding between molecules is becoming a renowned aspect of molecular engineering, offering an alternative to the tuning of conventional chemical bonds. However, the subtle nature of these interactions poses challenges for characterization using standard techniques. Herein, an efficient method of weak binding characterization based on the zero‐field splitting of a high‐spin probe by electron paramagnetic resonance is presented. Using endofullerene as the high spin center, we achieved direct comparison of the weak binding strengths in F‐MTPP (M = H 2 , Zn, Ni, and Pd) and 2F‐3MTPP (M = H 2 , Ni, Pd, and Pt) through the zero‐field splitting parameters. The high‐spin resonance spectrum is sensitive to the small variation in the supramolecular structure. By examining fullerene–porphyrin co‐crystals with various metal centers and packing arrangements, the relation between intermolecular weak binding and microstructural strain on the fullerene cage is elucidated.
Article Details
Authors (12)
Qi Xiong
Department of Materials Science and Engineering
Jia‐Yue Yuan
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
You‐Chao Liu
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
Yao‐Sheng Zhang
College of Science Hunan Key Laboratory of Mechanism and Technology of Quantum Information National University of Defense Technology Changsha 410000 China
Zhi‐Rong Wu
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
Xing‐Quan Tao
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
Cong‐Hui Wu
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
Xin‐Yu Hui
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 511442 China
Song Gao
Ye‐Xin Wang
Quantum Science Center of Guangdong‐Hong Kong‐Macao Greater Bay Area Shenzhen‐Hong Kong International Science and Technology Park NO.3 Binglang Road Futian District, Shenzhen Guangdong 518045 China
Shen Zhou
Shang‐Da Jiang
Spin‐X Institute School of Chemistry and Chemical Engineering Guangdong‐Hong Kong‐Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials State Key Laboratory of Luminescent Materials and Devices Guangdong Basic Research Center of Excellence for Functional Molecular Engineering South China University of Technology Guangzhou China