Reaction of triangulo-clusters [Pt3(μ-CO)3(PR3)3] with hexafluorobutyne. The X-ray crystal structures of [Pt2(CO)2(PR3)2(μ-η2:η2-CF3C![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
CCF3)]
(PR3
= PPh3 or PCy3) and [Pt2(CO)2(PBzPh2)(μ-η1:η1-CF3CCCF3)2]
Abstract
CCF3, reacts with the triangulo-clusters [Pt3(μ-CO)3(PR3)3] to give the diplatinum(0) compounds [Pt2(CO)2(PR3)2(μ-η2:η2-CF3CCCF3)]
{PR3
= PPh3 (1), PBzPh2 (2), PCy3 (3), PiPr3 (4)}. Spectroscopic properties are reported which are in accord with the molecular structures for 1 and 3, both having the acetylenic C–C axis perpendicular to the Pt–Pt axis, bridging two [Pt(CO)(PR3)] fragments in a μ-η2:η2 fashion. A large excess of CCF3)2]
{PR3
= PPh3 (5), PBzPh2 (6)}, having two planar
![Graphical abstract: Reaction of triangulo-clusters [Pt3(μ-CO)3(PR3)3] with hexafluorobutyne. The X-ray crystal structures of [Pt2(CO)2(PR3)2(μ-η2:η2-CF3C [[triple bond, length as m-dash]] CCF3)] (PR3 = PPh3 or PCy3) and [Pt2(CO)2(PBzPh2)(μ-η1:η1-CF3C [[triple bond, length as m-dash]] CCF3)2]](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=B203075F&imageInfo.ImageIdentifier.Year=2002)
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![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/h2_char_e002.gif)
CCF3)]
(PR3
= PPh3 or PCy3) and [Pt2(CO)2(PBzPh2)(μ-η1:η1-CF3C