A silver-alkynyl cluster encapsulating a fluorescent polyoxometalate core: Enhanced emission and fluorescence modulation

Chao Yu Song; Dong Feng Chai; Rui Ren Zhang; Hong Liu; Yun Feng Qiu; Hua Dong Guo; Guang Gang Gao

doi:10.1039/c4dt03826f

A silver-alkynyl cluster encapsulating a fluorescent polyoxometalate core: Enhanced emission and fluorescence modulation

Chao Yu Song
, Dong Feng Chai
, Rui Ren Zhang
, Hong Liu^*
, Yun Feng Qiu
, Hua Dong Guo
, Guang Gang Gao

^*Corresponding author for this work

Faculty of Life Sciences and Medicine

Jiamusi University
Changchun Normal University

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

A new silver(i)-alkynyl cluster with a [Eu(W₅O₁₈)₂]^9- polyoxoanionic core of [Ag₄₂{Eu(W₅O₁₈)₂}(^tBuCC)₂₈Cl₄] [OH]·H₂O (1) has been designed and synthesized. The [Eu(W₅O₁₈)₂]^9- polyoxoanion acts as a template to induce the formation of the surrounding 42-core Ag(i) cage. Due to the hydrophobic silver(i)-alkynyl shell, 1 features an unusual fluorescence enhancement as compared to the precursor of the [Eu(W₅O₁₈)₂]^9- polyoxoanionic core. Interestingly, the silver ions in the shell silver(i)-alkynyl cage can only be reduced to silver atoms by irradiation with high energy UV light (2 kW). Upon high UV irradiation, fluorescence quenching of 1 has been observed. Moreover, the solution fluorescence of 1 can be modulated by addition of S^2- ions into the system, which also leads to the fluorescence quenching phenomenon. The successful synthesis of 1 demonstrates a new route to the detection of high energy UV irradiation or S^2- ions by elaborate design of fluorescence quenching of silver(i)-alkynyl clusters.

Original language	English
Pages (from-to)	3997-4002
Number of pages	6
Journal	Dalton Transactions
Volume	44
Issue number	9
DOIs	https://doi.org/10.1039/c4dt03826f
State	Published - 7 Mar 2015

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@article{93285f24687048f994b1a911004d1291,

title = "A silver-alkynyl cluster encapsulating a fluorescent polyoxometalate core: Enhanced emission and fluorescence modulation",

abstract = "A new silver(i)-alkynyl cluster with a [Eu(W5O18)2]9- polyoxoanionic core of [Ag42\{Eu(W5O18)2\}(tBuCC)28Cl4] [OH]·H2O (1) has been designed and synthesized. The [Eu(W5O18)2]9- polyoxoanion acts as a template to induce the formation of the surrounding 42-core Ag(i) cage. Due to the hydrophobic silver(i)-alkynyl shell, 1 features an unusual fluorescence enhancement as compared to the precursor of the [Eu(W5O18)2]9- polyoxoanionic core. Interestingly, the silver ions in the shell silver(i)-alkynyl cage can only be reduced to silver atoms by irradiation with high energy UV light (2 kW). Upon high UV irradiation, fluorescence quenching of 1 has been observed. Moreover, the solution fluorescence of 1 can be modulated by addition of S2- ions into the system, which also leads to the fluorescence quenching phenomenon. The successful synthesis of 1 demonstrates a new route to the detection of high energy UV irradiation or S2- ions by elaborate design of fluorescence quenching of silver(i)-alkynyl clusters.",

author = "Song, \{Chao Yu\} and Chai, \{Dong Feng\} and Zhang, \{Rui Ren\} and Hong Liu and Qiu, \{Yun Feng\} and Guo, \{Hua Dong\} and Gao, \{Guang Gang\}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

month = mar,

day = "7",

doi = "10.1039/c4dt03826f",

language = "英语",

volume = "44",

pages = "3997--4002",

journal = "Dalton Transactions",

issn = "1477-9226",

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TY - JOUR

T1 - A silver-alkynyl cluster encapsulating a fluorescent polyoxometalate core

T2 - Enhanced emission and fluorescence modulation

AU - Song, Chao Yu

AU - Chai, Dong Feng

AU - Zhang, Rui Ren

AU - Liu, Hong

AU - Qiu, Yun Feng

AU - Guo, Hua Dong

AU - Gao, Guang Gang

PY - 2015/3/7

Y1 - 2015/3/7

N2 - A new silver(i)-alkynyl cluster with a [Eu(W5O18)2]9- polyoxoanionic core of [Ag42{Eu(W5O18)2}(tBuCC)28Cl4] [OH]·H2O (1) has been designed and synthesized. The [Eu(W5O18)2]9- polyoxoanion acts as a template to induce the formation of the surrounding 42-core Ag(i) cage. Due to the hydrophobic silver(i)-alkynyl shell, 1 features an unusual fluorescence enhancement as compared to the precursor of the [Eu(W5O18)2]9- polyoxoanionic core. Interestingly, the silver ions in the shell silver(i)-alkynyl cage can only be reduced to silver atoms by irradiation with high energy UV light (2 kW). Upon high UV irradiation, fluorescence quenching of 1 has been observed. Moreover, the solution fluorescence of 1 can be modulated by addition of S2- ions into the system, which also leads to the fluorescence quenching phenomenon. The successful synthesis of 1 demonstrates a new route to the detection of high energy UV irradiation or S2- ions by elaborate design of fluorescence quenching of silver(i)-alkynyl clusters.

AB - A new silver(i)-alkynyl cluster with a [Eu(W5O18)2]9- polyoxoanionic core of [Ag42{Eu(W5O18)2}(tBuCC)28Cl4] [OH]·H2O (1) has been designed and synthesized. The [Eu(W5O18)2]9- polyoxoanion acts as a template to induce the formation of the surrounding 42-core Ag(i) cage. Due to the hydrophobic silver(i)-alkynyl shell, 1 features an unusual fluorescence enhancement as compared to the precursor of the [Eu(W5O18)2]9- polyoxoanionic core. Interestingly, the silver ions in the shell silver(i)-alkynyl cage can only be reduced to silver atoms by irradiation with high energy UV light (2 kW). Upon high UV irradiation, fluorescence quenching of 1 has been observed. Moreover, the solution fluorescence of 1 can be modulated by addition of S2- ions into the system, which also leads to the fluorescence quenching phenomenon. The successful synthesis of 1 demonstrates a new route to the detection of high energy UV irradiation or S2- ions by elaborate design of fluorescence quenching of silver(i)-alkynyl clusters.

UR - https://www.scopus.com/pages/publications/84923353820

U2 - 10.1039/c4dt03826f

DO - 10.1039/c4dt03826f

M3 - 文章

C2 - 25612008

AN - SCOPUS:84923353820

SN - 1477-9226

VL - 44

SP - 3997

EP - 4002

JO - Dalton Transactions

JF - Dalton Transactions

IS - 9

ER -

A silver-alkynyl cluster encapsulating a fluorescent polyoxometalate core: Enhanced emission and fluorescence modulation

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