Probing solution behaviour of metallosupramolecular complexes using pyrene fluorescence

N.M. Cox; L.P. Harding; J.E. Jones; S.J.A. Pope; C.R. Rice; H. Adams

doi:10.1039/c1dt11831e

Probing solution behaviour of metallosupramolecular complexes using pyrene fluorescence

N.M. Cox, L.P. Harding, J.E. Jones, S.J.A. Pope, C.R. Rice, H. Adams

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Abstract

A new method for assessing the topology of metallosupramolecular assemblies using pyrene-appended ligands is reported. Two potentially tetradentate ligands containing one (L1) and two (L2) terminal pyrene moieties were synthesised and their complexes with Cu+ and Cd2+ were characterised. Photophysical measurements demonstrate that in [Cu2(L1)2]2+, [CdL1]2+ and [Cu2(L2)2]2+ the emission spectra are dominated by monomeric emission but in the cadmium complex of L2 (where the pyrene units are in close proximity) a quenching of the luminescence coupled with weak emission at 540 nm is indicative of excimer formation

Original language	English
Pages (from-to)	1568-1573
Number of pages	6
Journal	Dalton Transactions
Volume	41
Issue number	5
DOIs	https://doi.org/10.1039/c1dt11831e
Publication status	Published - 2012

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title = "Probing solution behaviour of metallosupramolecular complexes using pyrene fluorescence",

abstract = "A new method for assessing the topology of metallosupramolecular assemblies using pyrene-appended ligands is reported. Two potentially tetradentate ligands containing one (L1) and two (L2) terminal pyrene moieties were synthesised and their complexes with Cu+ and Cd2+ were characterised. Photophysical measurements demonstrate that in [Cu2(L1)2]2+, [CdL1]2+ and [Cu2(L2)2]2+ the emission spectra are dominated by monomeric emission but in the cadmium complex of L2 (where the pyrene units are in close proximity) a quenching of the luminescence coupled with weak emission at 540 nm is indicative of excimer formation",

author = "N.M. Cox and L.P. Harding and J.E. Jones and S.J.A. Pope and C.R. Rice and H. Adams",

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T1 - Probing solution behaviour of metallosupramolecular complexes using pyrene fluorescence

AU - Cox, N.M.

AU - Harding, L.P.

AU - Jones, J.E.

AU - Pope, S.J.A.

AU - Rice, C.R.

AU - Adams, H.

N1 - cited By 3

PY - 2012

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N2 - A new method for assessing the topology of metallosupramolecular assemblies using pyrene-appended ligands is reported. Two potentially tetradentate ligands containing one (L1) and two (L2) terminal pyrene moieties were synthesised and their complexes with Cu+ and Cd2+ were characterised. Photophysical measurements demonstrate that in [Cu2(L1)2]2+, [CdL1]2+ and [Cu2(L2)2]2+ the emission spectra are dominated by monomeric emission but in the cadmium complex of L2 (where the pyrene units are in close proximity) a quenching of the luminescence coupled with weak emission at 540 nm is indicative of excimer formation

AB - A new method for assessing the topology of metallosupramolecular assemblies using pyrene-appended ligands is reported. Two potentially tetradentate ligands containing one (L1) and two (L2) terminal pyrene moieties were synthesised and their complexes with Cu+ and Cd2+ were characterised. Photophysical measurements demonstrate that in [Cu2(L1)2]2+, [CdL1]2+ and [Cu2(L2)2]2+ the emission spectra are dominated by monomeric emission but in the cadmium complex of L2 (where the pyrene units are in close proximity) a quenching of the luminescence coupled with weak emission at 540 nm is indicative of excimer formation

U2 - 10.1039/c1dt11831e

DO - 10.1039/c1dt11831e

M3 - Article

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SP - 1568

EP - 1573

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 5

ER -

Probing solution behaviour of metallosupramolecular complexes using pyrene fluorescence

Abstract

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