Luminescent gold(I) acetylide complexes. Photophysical and photoredox properties and crystal structure of [{Au(CCPh)}2(µ-Ph2PCH2CH2PPh2)]
- 1 January 1993
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 19,p. 2929-2932
- https://doi.org/10.1039/dt9930002929
Abstract
The spectroscopic and photophysical properties of three gold(I)-acetylide complexes [N(PPh3)2]-[Au(CCPh)2], [Au(PPh3)(CCPh)] and [{Au(CCPh)}2(µ-dppe)][dppe = 1,2-bis(diphenyl-phosphino)ethane] are described. X-Ray crystal analysis of the latter showed a weak metal–metal interaction in the solid state with the shortest Au ⋯ Au separation being 3.153(2)Å. The gold(I)–acetylide complexes have long-lived and emissive 3(π,π*) excited states in solutions at room temperature. The photoreaction of [Au(PPh3)(CCPh)] with methyl viologen has been investigated by Stern–Volmer quenching and flash-photolysis experiments.Keywords
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