Triphos as a bidentate ligand: the reactivity of the dangling phosphorus in [PtMe2(triphos-P,P′)]

The Relative Coordinating Ability of Some Weak O‐Donor Anions and Water Towards the [Pt(terpy)]2+ (terpy = 2,2′:6′,2″‐terpyridine) Center – X‐ray Crystal Structures of [Pt(terpy)(H2O)](CF3SO3)2 and [Pt2(μ‐OH)(terpy)2](PF6)2(CF3SO3)

“…Some of the starting complexes of the type [Pt(CH 3 )(terpy)]Y were prepared as described by Romeo et al, [9] whereas the others (Y = NO 3 , BF 4 , CH 3 SO 3 and CF 3 SO 3 ) were obtained by treating [Pt(CH 3 )(terpy)](Cl) with a stoichiometric amount of the appropriate silver salt. All of them were dried under vacuum at 100°C over P 2 O 5 for at least 2 h before treatment with the acid.…”

“…It should be noted that an increase in multiplicity would also be expected if the triflate ion were coordinated to the metal center, although the splitting here is somewhat smaller than in the triphos and triphos-P,PЈ triflate complexes. [3,4] We isolated the aqua complex as its perchlorate salt [Pt(terpy)(H 2 O)](ClO 4 ) 2 (10) after treating the corresponding salt of the methyl complex with an excess of perchloric acid in TFE. The 1 H NMR spectra of complexes 8Ј and 10 in CD 3 NO 2 solution are shown in Figure 2 (8Ј: spectrum A; 10: spectrum C).…”

“…BF 4 -, CF 3 SO 3 -, etc.) are of great importance in coordination and organometallic chemistry as they can serve as useful precursors for the preparation of a wide range of complexes, many of which have been shown to be active catalysts.…”

“…[1] Some of the various routes used for their preparation have been reviewed by Beck. [2] Among these synthetic methods, the acidolysis of a metal-alkyl bond is of particular utility since it gives no by-products. We have successfully applied this route for the preparation of [Pt(OSO 2 CF 3 )(triphos)](CF 3 SO 3 ) {triphos = bis[2-(diphenylphosphanyl)ethyl](phenyl)phosphane} by treating [Pt(CH 3 )(triphos)](CF 3 SO 3 ) [3] or [Pt(CH 3 ) 2 (triphos-P,PЈ)] [4] with CF 3 SO 3 H. Both these reactions give the triflato complex cleanly and in high yield. We reasoned that acidolysis of a cationic complex of the type [M(CH 3 )(L)]Y (L = terdentate ligand) with an acid HYЈ could also be useful for establishing the relative coordinating ability of the two anions Y and YЈ.…”

Template Synthesis of Chiral Vicinal Diphosphinites as Their PtII and PdII Complexes

“…ORTEP [10] view of complex 7 showing the thermal ellipsoids at the 40% probability level [14] where the negative charge is shared between two oxygens. Accordingly, all the PϪO bonds are of similar lengths [in the range 1.540(4)Ϫ1.550(4) Å ], and are significantly longer than the PϭO distances [1.48Ϫ1.50 Å ] [15] between phosphorus and neutral oxygen.…”