Ruthenium and osmium podate cyclodextrins with dual function recognition sites for luminescent sensing

Maria Pereira Silva; JM Haider; R Heck; M Chavarot; A Marsura; Zoe Pikramenou

doi:10.1080/10610270310001605151

Ruthenium and osmium podate cyclodextrins with dual function recognition sites for luminescent sensing

Maria Pereira Silva, JM Haider, R Heck, M Chavarot, A Marsura, Zoe Pikramenou

Chemistry

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

17 Citations (Scopus)

Abstract

A multifunctionalised podand cyclodextrin ligand, β-CD-(urebpy)⁷, with urea--bipyridine binding sites leads to ruthenium and osmium, {Ru[β-CD-(urebpy)⁷]}[PF⁶]² {Os[β-CD-(urebpy)⁷]}[PF⁶]², cyclodextrins. The bipyridine ligands are preorganised by the cyclodextrin cavity encapsulating the ruthenium and osmium core to give photoactive metallocyclodextrins. The podate cyclodextrin complexes show characteristic ruthenium and osmium tri-bipyridine luminescence. It is demonstrated that the ruthenium cyclodextrins participate in sensing schemes through both the cyclodextrin cavity and the urea cage at the bottom of the cyclodextrin rim. Luminescence quenching of the ruthenium emission is observed by addition of anthraquinone guests in the cyclodextrin cavity or addition of dihydrogen phosphate anion.

Original language	English
Pages (from-to)	563-571
Number of pages	9
Journal	Supramolecular Chemistry
Volume	15
Issue number	7-8
DOIs	https://doi.org/10.1080/10610270310001605151
Publication status	Published - 2003

Keywords

sensors
cyclodextrins
supramolecular chemistry
molecular devices

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10.1080/10610270310001605151Licence: None: All rights reserved

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@article{25d2811698234ae89b093dcf2a3dfc06,

title = "Ruthenium and osmium podate cyclodextrins with dual function recognition sites for luminescent sensing",

abstract = "A multifunctionalised podand cyclodextrin ligand, β-CD-(urebpy)7, with urea--bipyridine binding sites leads to ruthenium and osmium, {Ru[β-CD-(urebpy)7]}[PF6]2 {Os[β-CD-(urebpy)7]}[PF6]2, cyclodextrins. The bipyridine ligands are preorganised by the cyclodextrin cavity encapsulating the ruthenium and osmium core to give photoactive metallocyclodextrins. The podate cyclodextrin complexes show characteristic ruthenium and osmium tri-bipyridine luminescence. It is demonstrated that the ruthenium cyclodextrins participate in sensing schemes through both the cyclodextrin cavity and the urea cage at the bottom of the cyclodextrin rim. Luminescence quenching of the ruthenium emission is observed by addition of anthraquinone guests in the cyclodextrin cavity or addition of dihydrogen phosphate anion.",

keywords = "sensors, cyclodextrins, supramolecular chemistry, molecular devices",

author = "{Pereira Silva}, Maria and JM Haider and R Heck and M Chavarot and A Marsura and Zoe Pikramenou",

year = "2003",

doi = "10.1080/10610270310001605151",

language = "English",

volume = "15",

pages = "563--571",

journal = "Supramolecular Chemistry",

publisher = "Taylor & Francis",

number = "7-8",

}

TY - JOUR

T1 - Ruthenium and osmium podate cyclodextrins with dual function recognition sites for luminescent sensing

AU - Pereira Silva, Maria

AU - Haider, JM

AU - Heck, R

AU - Chavarot, M

AU - Marsura, A

AU - Pikramenou, Zoe

PY - 2003

Y1 - 2003

N2 - A multifunctionalised podand cyclodextrin ligand, β-CD-(urebpy)7, with urea--bipyridine binding sites leads to ruthenium and osmium, {Ru[β-CD-(urebpy)7]}[PF6]2 {Os[β-CD-(urebpy)7]}[PF6]2, cyclodextrins. The bipyridine ligands are preorganised by the cyclodextrin cavity encapsulating the ruthenium and osmium core to give photoactive metallocyclodextrins. The podate cyclodextrin complexes show characteristic ruthenium and osmium tri-bipyridine luminescence. It is demonstrated that the ruthenium cyclodextrins participate in sensing schemes through both the cyclodextrin cavity and the urea cage at the bottom of the cyclodextrin rim. Luminescence quenching of the ruthenium emission is observed by addition of anthraquinone guests in the cyclodextrin cavity or addition of dihydrogen phosphate anion.

AB - A multifunctionalised podand cyclodextrin ligand, β-CD-(urebpy)7, with urea--bipyridine binding sites leads to ruthenium and osmium, {Ru[β-CD-(urebpy)7]}[PF6]2 {Os[β-CD-(urebpy)7]}[PF6]2, cyclodextrins. The bipyridine ligands are preorganised by the cyclodextrin cavity encapsulating the ruthenium and osmium core to give photoactive metallocyclodextrins. The podate cyclodextrin complexes show characteristic ruthenium and osmium tri-bipyridine luminescence. It is demonstrated that the ruthenium cyclodextrins participate in sensing schemes through both the cyclodextrin cavity and the urea cage at the bottom of the cyclodextrin rim. Luminescence quenching of the ruthenium emission is observed by addition of anthraquinone guests in the cyclodextrin cavity or addition of dihydrogen phosphate anion.

KW - sensors

KW - cyclodextrins

KW - supramolecular chemistry

KW - molecular devices

UR - http://www.scopus.com/inward/record.url?scp=0242593740&partnerID=8YFLogxK

U2 - 10.1080/10610270310001605151

DO - 10.1080/10610270310001605151

M3 - Article

VL - 15

SP - 563

EP - 571

JO - Supramolecular Chemistry

JF - Supramolecular Chemistry

IS - 7-8

ER -

Ruthenium and osmium podate cyclodextrins with dual function recognition sites for luminescent sensing

Abstract

Keywords

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