A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors

Wei Yang; Shengnan Hu; Yuwei Wang; Sisi Yan; Xiang Qian Cao; Hong Xi Li; David James Young; Zhi Gang Ren

doi:10.3390/molecules28031257

A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors

Wei Yang, Shengnan Hu, Yuwei Wang, Sisi Yan, Xiang Qian Cao, Hong Xi Li, David James Young, Zhi Gang Ren

CDU College of Engineering, IT and Environment

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Abstract

A new Ag/Cu bimetallic cluster [Ag10Cu6(bdppthi)2(C≡CPh)12(EtOH)2](ClO4)4 (1, bdppthi = N,N'-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in derivative 1a, which exhibited significant red-shifted emission at 678 nm. The structure and PL of 1 was restored on exposure to EtOH vapor. Cluster 1a also exhibited a vapor-chromic PL response towards other common organic solvent vapors including acetone, MeOH and MeCN. A PMMA film of 1a was developed as a reusable visible sensor for MeCN.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	Molecules (Basel, Switzerland)
Volume	28
Issue number	3
DOIs	https://doi.org/10.3390/molecules28031257
Publication status	Published - 27 Jan 2023

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72074215-oaFinal published version, 1.43 MBLicence: CC BY

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title = "A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors",

abstract = "A new Ag/Cu bimetallic cluster [Ag10Cu6(bdppthi)2(C≡CPh)12(EtOH)2](ClO4)4 (1, bdppthi = N,N'-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in derivative 1a, which exhibited significant red-shifted emission at 678 nm. The structure and PL of 1 was restored on exposure to EtOH vapor. Cluster 1a also exhibited a vapor-chromic PL response towards other common organic solvent vapors including acetone, MeOH and MeCN. A PMMA film of 1a was developed as a reusable visible sensor for MeCN.",

keywords = "Ag/Cu complex, photoluminescence material, vapor-chromic response, volatile organic vapor (VOC) detection",

author = "Wei Yang and Shengnan Hu and Yuwei Wang and Sisi Yan and Cao, {Xiang Qian} and Li, {Hong Xi} and Young, {David James} and Ren, {Zhi Gang}",

year = "2023",

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doi = "10.3390/molecules28031257",

language = "English",

volume = "28",

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journal = "Molecules",

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T1 - A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors

AU - Yang, Wei

AU - Hu, Shengnan

AU - Wang, Yuwei

AU - Yan, Sisi

AU - Cao, Xiang Qian

AU - Li, Hong Xi

AU - Young, David James

AU - Ren, Zhi Gang

PY - 2023/1/27

Y1 - 2023/1/27

N2 - A new Ag/Cu bimetallic cluster [Ag10Cu6(bdppthi)2(C≡CPh)12(EtOH)2](ClO4)4 (1, bdppthi = N,N'-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in derivative 1a, which exhibited significant red-shifted emission at 678 nm. The structure and PL of 1 was restored on exposure to EtOH vapor. Cluster 1a also exhibited a vapor-chromic PL response towards other common organic solvent vapors including acetone, MeOH and MeCN. A PMMA film of 1a was developed as a reusable visible sensor for MeCN.

AB - A new Ag/Cu bimetallic cluster [Ag10Cu6(bdppthi)2(C≡CPh)12(EtOH)2](ClO4)4 (1, bdppthi = N,N'-bis(diphenylphosphanylmethyl)-tetrahydroimidazole) exhibited strong phosphorescent (PL) emission at 644 nm upon excitation at 400 nm. Removal of the coordinated EtOH molecules in 1 resulted in derivative 1a, which exhibited significant red-shifted emission at 678 nm. The structure and PL of 1 was restored on exposure to EtOH vapor. Cluster 1a also exhibited a vapor-chromic PL response towards other common organic solvent vapors including acetone, MeOH and MeCN. A PMMA film of 1a was developed as a reusable visible sensor for MeCN.

KW - Ag/Cu complex

KW - photoluminescence material

KW - vapor-chromic response

KW - volatile organic vapor (VOC) detection

UR - http://www.scopus.com/inward/record.url?scp=85147894910&partnerID=8YFLogxK

U2 - 10.3390/molecules28031257

DO - 10.3390/molecules28031257

M3 - Article

C2 - 36770923

AN - SCOPUS:85147894910

VL - 28

SP - 1

EP - 9

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 3

ER -

A Novel Photoluminescent Ag/Cu Cluster Exhibits a Chromic Photoluminescence Response towards Volatile Organic Vapors

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