期刊
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
卷 -, 期 24, 页码 4601-4606出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b005251p
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The complexes [{-Ph2P(CH2)(n)PPh2AuNC5H4C5H4NAu-}(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) Angstrom. Some of the complexes are strongly emissive at room temperature in solution and in the solid state.
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