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Volume 30
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10.3390/molecules30092011
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Recoverable and Sensitive Pressure-Induced Mechanochromic Photoluminescence of a Au-P Complex

by
Ningwen Yang
1,
Yijia Chang
1,
Jiangyue Wang
1,
David James Young
2,
Hong-Xi Li
1,
Yuxin Lu
1,* and
Zhi-Gang Ren
1,*
1
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
2
James Watt School of Engineering, University of Glasgow, University Avenue, Glasgow G12 8QQ, UK
*
Authors to whom correspondence should be addressed.
Molecules 2025, 30(9), 2011; https://doi.org/10.3390/molecules30092011
Submission received: 22 March 2025 / Revised: 29 April 2025 / Accepted: 29 April 2025 / Published: 30 April 2025
(This article belongs to the Special Issue Inorganic Chemistry in Asia)
Versions Notes

Abstract

A binuclear Au-P complex [Au2(2-bdppmapy)2](PF6)2 (1) was synthesised by the reaction of 2-bdppmapy (N,N′-bis-(diphenylphosphanylmethyl-2-aminopyridine) with AuCN and [Cu(MeCN)4]PF6. The solid phase of 1 emitted bright yellow phosphorescence at λmax = 580 nm under UV excitation (QY = 4.41%, τ = 1.88 μs), which shifted to green (λmax = 551 nm, QY = 5.73%) after being pressurised under 5 MPa. This colour change was recoverable upon exposure to CH2Cl2 vapor. Similar mechanochromic photoluminescence behaviour was observed after grinding the crystals of 1. A filter paper impregnated with 1 demonstrated recyclable write/erase functionality for encrypted information transfer.
Keywords: Ag-P complex; stimuli-responsive material; mechanochromic photoluminescence; photoluminescent material Ag-P complex; stimuli-responsive material; mechanochromic photoluminescence; photoluminescent material

Share and Cite

MDPI and ACS Style

Yang, N.; Chang, Y.; Wang, J.; Young, D.J.; Li, H.-X.; Lu, Y.; Ren, Z.-G. Recoverable and Sensitive Pressure-Induced Mechanochromic Photoluminescence of a Au-P Complex. Molecules 2025, 30, 2011. https://doi.org/10.3390/molecules30092011

AMA Style

Yang N, Chang Y, Wang J, Young DJ, Li H-X, Lu Y, Ren Z-G. Recoverable and Sensitive Pressure-Induced Mechanochromic Photoluminescence of a Au-P Complex. Molecules. 2025; 30(9):2011. https://doi.org/10.3390/molecules30092011

Chicago/Turabian Style

Yang, Ningwen, Yijia Chang, Jiangyue Wang, David James Young, Hong-Xi Li, Yuxin Lu, and Zhi-Gang Ren. 2025. "Recoverable and Sensitive Pressure-Induced Mechanochromic Photoluminescence of a Au-P Complex" Molecules 30, no. 9: 2011. https://doi.org/10.3390/molecules30092011

APA Style

Yang, N., Chang, Y., Wang, J., Young, D. J., Li, H.-X., Lu, Y., & Ren, Z.-G. (2025). Recoverable and Sensitive Pressure-Induced Mechanochromic Photoluminescence of a Au-P Complex. Molecules, 30(9), 2011. https://doi.org/10.3390/molecules30092011

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