Self-assembly of singlet-emitting double-helical silver dimers:the curious coordination chemistry and fluorescence of bisquinolylpyridone

Farrow, Charlotte and Halcovitch, Nathan Ross and Akien, Geoffrey Richard and Platts, James A. and Coogan, Michael Peter (2018) Self-assembly of singlet-emitting double-helical silver dimers:the curious coordination chemistry and fluorescence of bisquinolylpyridone. Dalton Transactions, 47 (11). pp. 3906-3912. ISSN 1477-9226

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Abstract

2,6-Bis(2-quinolyl)-4(1H)-pyridone 1, a novel quinoline analogue of the well-known ligand 2-terpyridone, shows unusual fluorescence with a large Stokes shift and low energy emission. Pyridine-pyridone tautomerism is investigated by NMR and theoretical methods and indicates that the low energy emission is from the pyridine form. 1 reacts with Ag(I) salts to give a double helical Ag2N6 core showing a BLUE shift in fluorescence with respect to the free ligand, which has been characterised experimentally and theoretically as involving an unusual mixed MLCT/ILCT excited state and emission from a singlet state

Item Type:
Journal Article
Journal or Publication Title:
Dalton Transactions
Additional Information:
© The Royal Society of Chemistry 2018
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1604
Subjects:
ID Code:
90189
Deposited By:
Deposited On:
09 Feb 2018 12:02
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Jul 2020 07:13