The reactions of [Pt2(p-OH)2(POPh2)2(PR3)2] with (i) HBF4 or HPF6 to give the triplatinum complexes [Pt3(p3-OH)-(p-OPPh2)3(PR3)312+ ( 2) and (ii) alcohols to give the diplatinum complexes [Pt2(p-OPPh2)2(PR3)21 (4) are described; the X-ray crystal structures of (2a) and (4a) show the OPPh2 ligand is capable of spanning Pt . distances of 2.55 to 3.71 A.
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