Synthesis of platinum-iodo-alkyl/aryl complexes in ligand-exchange reactions: Determination of the structure of Pt{(S,S)-bdpp}(X)I complexes (X=Me, I) by X-ray crystallography

Diiodomethane as a halogen bond donor toward metal-bound halides

“…The same elongation on the Pt-Cl bonds was found in the previously reported trans-[PtCl 2 IJNCNR 2 ) 2 ] complexes linked with iodoform as an XB donor via C-I⋯Cl-Pt XBs. 17 Halogen bond in the structure of VEMWOA Although until now no XBs between diiodomethane and metal halide complexes have been reported, our inspection of the CCDC database verified the H 2 C(I)-I⋯I-Pt XBs in the structure of VEMWOA, 53 which represents the platinumIJII) associate [PtI 2 {S,S-P _(Ph) 2 CHIJMe)CH 2 CHIJMe)P _Ph 2 }]·⅓MeCN ·⅓CH 2 I 2 (2·⅓MeCN·⅓CH 2 I 2 ) (Fig. 8).…”

“…In the corresponding work, 53 it was pointed out that no anomalous van der Waals contacts were observed in 2·⅓MeCN ·⅓CH 2 I 2 . By contrast, our inspection of this structure allows 42 In 2, the surface maxima with the negative absolute value of V S IJr) max (−18 kcal mol −1 ) corresponding to "nominal σ-holes" (see above) were found on the iodine ligands (Fig.…”

The formation of Pt(P–P)(X)(COAr) (X=Cl, I; Ar=Ph, 2-Tioph) complexes via insertion of carbon monoxide

“…The aryl-halide-complexes, Pt(dppp)(X)(Ar) (where dppp = 1,3-bis(diphenyl-phosphino)propane; X=I, Ar=Ph, 1; X=I, Ar=2-Tioph; 2; X=Cl, Ar=Ph, 3; X=Cl, Ar=2-Tioph, 4) were prepared by ligand exchange reactions as described before for the analogous bdpp (2,4-bis(diphenylphosphino)pentane) complexes [14]. Two reaction pathways were used for the synthesis of the aryl-halide complexes: (i) the 'monoarylation route' provided the target monoaryl complex directly by using Pt(cod)X 2 and aryltributylstannane (Fig.…”

“…Two reaction pathways were used for the synthesis of the aryl-halide complexes: (i) the 'monoarylation route' provided the target monoaryl complex directly by using Pt(cod)X 2 and aryltributylstannane (Fig. 3), (ii) the 'diarylation' route was applied in general, where Pt(cod)(aryl) 2 [14] was synthesised first, which was reacted with the Pt(cod)X 2 complex in ligand exchange reaction resulting the monoaryl complex (Fig. 4).…”

“…General Pt(dppp)I(aryl) (1,2) and Pt(cod)(aryl) 2 complexes were synthesized according to an analogous procedure [14]. Pt(cod)Cl 2 , dppp, and the aryltributylstannane reagents were purchased from Aldrich and were used without further purification.…”