Luminescent dinuclear lanthanide complexes of 5-Me-HXTA

Louise S. Natrajan; Phillipa L. Timmins; Matthew Lunn; Sarah L. Heath

doi:10.1021/ic701366f

Luminescent dinuclear lanthanide complexes of 5-Me-HXTA

Louise S. Natrajan, Phillipa L. Timmins, Matthew Lunn, Sarah L. Heath

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

Abstract

The synthesis and characterization of a series of anionic homobimetallic lanthanide complexes of the septadentate chelate 5-Me-HXTA (N,N-(2 hydroxy-5-methyl-1,3-xylylene)bis(N-(carboxymethyl)glycine) is described (Ln = Nd, Sm, Eu, Tb, Dy, Ho, Er, Yb). Single X-ray crystallography confirms that the complexes exist as discrete dimeric pairs in the solid state. Proton NMR, diffusion-ordered spectroscopy, and luminescence solution studies suggest that the binuclear stoichiometry is retained in aqueous solution over a range of analytically useful concentrations. The phenolic chromophores effectively sensitize the visible and near-infrared lanthanide-centered emission in the terbium, neodymium, and ytterbium derivatives, giving rise to particularly long-lived green and near-infrared emission. The terbium complex displays a high quantum yield of around 50% in aqueous solution with a low detection limit of 1 × 10-12 M, rendering this compound a potential candidate for time-resolved applications. © 2007 American Chemical Society.

Original language	English
Pages (from-to)	10877-10886
Number of pages	9
Journal	Inorganic Chemistry: including bioinorganic chemistry
Volume	46
Issue number	25
DOIs	https://doi.org/10.1021/ic701366f
Publication status	Published - 10 Dec 2007

Keywords

NEAR-INFRARED LUMINESCENCE
TIME-RESOLVED LUMINESCENCE
DIFFUSION-ORDERED SPECTROSCOPY
VISIBLE-LIGHT SENSITIZATION
TRIPLE-HELICAL COMPLEXES
RAY CRYSTAL-STRUCTURES
PHOTOPHYSICAL
PROPERTIES
ENERGY-TRANSFER
SOLID-STATE
NEODYMIUM COMPLEXES

Access to Document

10.1021/ic701366f

CCDC 677994: Experimental Crystal Structure Determination
Natrajan, L. (Contributor), Timmins, P. L. (Contributor), Lunn, M. (Contributor) & Heath, S. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2008
DOI: 10.5517/ccqrhsq, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccqrhsq&sid=DataCite
Dataset
CCDC 194833: Experimental Crystal Structure Determination
Natrajan, L. (Contributor), Timmins, P. L. (Contributor), Lunn, M. (Contributor) & Heath, S. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2008
DOI: 10.5517/cc6jqyc, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc6jqyc&sid=DataCite
Dataset
CCDC 677995: Experimental Crystal Structure Determination
Natrajan, L. (Contributor), Timmins, P. L. (Contributor), Lunn, M. (Contributor) & Heath, S. (Contributor), Cambridge Crystallographic Data Centre, 1 Jan 2008
DOI: 10.5517/ccqrhtr, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccqrhtr&sid=DataCite
Dataset

Cite this

@article{f3afc7f3defe4198acb073998943067c,

title = "Luminescent dinuclear lanthanide complexes of 5-Me-HXTA",

abstract = "The synthesis and characterization of a series of anionic homobimetallic lanthanide complexes of the septadentate chelate 5-Me-HXTA (N,N-(2 hydroxy-5-methyl-1,3-xylylene)bis(N-(carboxymethyl)glycine) is described (Ln = Nd, Sm, Eu, Tb, Dy, Ho, Er, Yb). Single X-ray crystallography confirms that the complexes exist as discrete dimeric pairs in the solid state. Proton NMR, diffusion-ordered spectroscopy, and luminescence solution studies suggest that the binuclear stoichiometry is retained in aqueous solution over a range of analytically useful concentrations. The phenolic chromophores effectively sensitize the visible and near-infrared lanthanide-centered emission in the terbium, neodymium, and ytterbium derivatives, giving rise to particularly long-lived green and near-infrared emission. The terbium complex displays a high quantum yield of around 50% in aqueous solution with a low detection limit of 1 × 10-12 M, rendering this compound a potential candidate for time-resolved applications. {\textcopyright} 2007 American Chemical Society.",

keywords = "NEAR-INFRARED LUMINESCENCE, TIME-RESOLVED LUMINESCENCE, DIFFUSION-ORDERED SPECTROSCOPY, VISIBLE-LIGHT SENSITIZATION, TRIPLE-HELICAL COMPLEXES, RAY CRYSTAL-STRUCTURES, PHOTOPHYSICAL, PROPERTIES, ENERGY-TRANSFER, SOLID-STATE, NEODYMIUM COMPLEXES",

author = "Natrajan, {Louise S.} and Timmins, {Phillipa L.} and Matthew Lunn and Heath, {Sarah L.}",

year = "2007",

month = dec,

day = "10",

doi = "10.1021/ic701366f",

language = "English",

volume = "46",

pages = "10877--10886",

journal = "Inorganic Chemistry: including bioinorganic chemistry ",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "25",

}

TY - JOUR

T1 - Luminescent dinuclear lanthanide complexes of 5-Me-HXTA

AU - Natrajan, Louise S.

AU - Timmins, Phillipa L.

AU - Lunn, Matthew

AU - Heath, Sarah L.

PY - 2007/12/10

Y1 - 2007/12/10

N2 - The synthesis and characterization of a series of anionic homobimetallic lanthanide complexes of the septadentate chelate 5-Me-HXTA (N,N-(2 hydroxy-5-methyl-1,3-xylylene)bis(N-(carboxymethyl)glycine) is described (Ln = Nd, Sm, Eu, Tb, Dy, Ho, Er, Yb). Single X-ray crystallography confirms that the complexes exist as discrete dimeric pairs in the solid state. Proton NMR, diffusion-ordered spectroscopy, and luminescence solution studies suggest that the binuclear stoichiometry is retained in aqueous solution over a range of analytically useful concentrations. The phenolic chromophores effectively sensitize the visible and near-infrared lanthanide-centered emission in the terbium, neodymium, and ytterbium derivatives, giving rise to particularly long-lived green and near-infrared emission. The terbium complex displays a high quantum yield of around 50% in aqueous solution with a low detection limit of 1 × 10-12 M, rendering this compound a potential candidate for time-resolved applications. © 2007 American Chemical Society.

AB - The synthesis and characterization of a series of anionic homobimetallic lanthanide complexes of the septadentate chelate 5-Me-HXTA (N,N-(2 hydroxy-5-methyl-1,3-xylylene)bis(N-(carboxymethyl)glycine) is described (Ln = Nd, Sm, Eu, Tb, Dy, Ho, Er, Yb). Single X-ray crystallography confirms that the complexes exist as discrete dimeric pairs in the solid state. Proton NMR, diffusion-ordered spectroscopy, and luminescence solution studies suggest that the binuclear stoichiometry is retained in aqueous solution over a range of analytically useful concentrations. The phenolic chromophores effectively sensitize the visible and near-infrared lanthanide-centered emission in the terbium, neodymium, and ytterbium derivatives, giving rise to particularly long-lived green and near-infrared emission. The terbium complex displays a high quantum yield of around 50% in aqueous solution with a low detection limit of 1 × 10-12 M, rendering this compound a potential candidate for time-resolved applications. © 2007 American Chemical Society.

KW - NEAR-INFRARED LUMINESCENCE

KW - TIME-RESOLVED LUMINESCENCE

KW - DIFFUSION-ORDERED SPECTROSCOPY

KW - VISIBLE-LIGHT SENSITIZATION

KW - TRIPLE-HELICAL COMPLEXES

KW - RAY CRYSTAL-STRUCTURES

KW - PHOTOPHYSICAL

KW - PROPERTIES

KW - ENERGY-TRANSFER

KW - SOLID-STATE

KW - NEODYMIUM COMPLEXES

U2 - 10.1021/ic701366f

DO - 10.1021/ic701366f

M3 - Article

SN - 0020-1669

VL - 46

SP - 10877

EP - 10886

JO - Inorganic Chemistry: including bioinorganic chemistry

JF - Inorganic Chemistry: including bioinorganic chemistry

IS - 25

ER -

Luminescent dinuclear lanthanide complexes of 5-Me-HXTA

Abstract

Keywords

Access to Document

Fingerprint

Datasets

CCDC 677994: Experimental Crystal Structure Determination

CCDC 194833: Experimental Crystal Structure Determination

CCDC 677995: Experimental Crystal Structure Determination

Cite this