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Issue 24, 2000
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Luminescent gold(I) macrocycles with diphosphine and 4,4′-bipyridyl ligands

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Abstract

The complexes [{–Ph2P(CH2)nPPh2AuNC5H4C5H4NAu–}x]2x+ [CF3CO2]2x (n = 1–6) were prepared as colourless, air-stable solids by reaction of silver trifluoroacetate with the corresponding precursor complex [(CH2)n(Ph2PAuCl)2], and subsequent treatment of the products [(CH2)n(Ph2PAuO2CCF3)2] with 4,4′-bipyridyl. The complexes are suggested to exist in solution as an equilibrium mixture of linear oligomers and cyclic complexes. When n = 1, 3 or 5 the cationic complexes were shown to exist as 26-, 30- and 34-membered macrocyclic rings respectively; only when n = 1 are there significant intramolecular Au  Au contacts of 3.106(1) and 3.084(1) Å. Some of the complexes are strongly emissive at room temperature in solution and in the solid state.

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Publication details

The article was received on 30 Jun 2000, accepted on 10 Oct 2000 and first published on 01 Dec 2000


Article type: Paper
DOI: 10.1039/B005251P
Citation: J. Chem. Soc., Dalton Trans., 2000,0, 4601-4606
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    Luminescent gold(I) macrocycles with diphosphine and 4,4′-bipyridyl ligands

    M. Brandys, M. C. Jennings and R. J. Puddephatt, J. Chem. Soc., Dalton Trans., 2000, 0, 4601
    DOI: 10.1039/B005251P

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