Organometallic Gold(I) and Gold(III) Complexes Containing 1,3,5-Triaza-7-phosphaadamantane (TPA): Examples of Water-Soluble Organometallic Gold Compounds

The organometallic gold(I) complexes [Au(C⋮CCRR‘OH)(TPA)] (R = R‘ = H, Me, Ph and R = Me,
R‘ = Et) and [Au(C6F5)(TPA)] as well as the gold(III) complexes trans-[Au(C6F5)2(TPA)2]OTf and
[Au(C6F5)3(TPA)] (TPA = 1,3,5-triaza-7-phosphaadamantane) were prepared and fully characterized by
spectroscopic methods and, in the case of rac-[Au{C⋮CC(Et)(Me)OH}(TPA)] and [Au(C6F5)3(TPA)],
by X-ray crystallography. The alkynyl complexes [Au(C⋮CCRR‘OH)(TPA)] (R = R‘ = H, Me and R
= Me, R‘ = Et) represent rare examples of organometallic gold(I) complexes that are soluble and stable
in water.