Preparation and crystallographic characterization of Pd(II) complexes containing imidobis(diphenylthiophosphinato) ligand

Bis[bis(diphenylthiophosphinyl)amido-κ2S,S′]platinum(II)

“…1). These values are comparable with literature values of related compounds [Yanar et al, 2007;Bhattacharyya & Woollins, 1995]. The differences in the bite angles of S-Pt-S are likely due to the conformations of the six-membered metallo rings.…”

“…In the Pt1/S1/P1/N1/P4/S4 ring, the Pt1-S1-P1-N1 and Pt1-S4-P4-N1 torsion angles are -57.12 (13)° and -51.12 (14)°, respectively, with ring puckering parameters of θ= 89.31 (11)° and Φ= 287.34 (13)°. This supports a twist-boat conformation (Cremer & Pople,1975 [Yanar et al, 2007;İrişli & Yanar, 2006]. The observed P1-S1, P2-S2, P3-S3 and P4-S4 lengths [2.0279 (12) Å, 2.0332 (13) Å, 2.0327 (14)Å and 2.0304 (12) Å] are closer to single bond than double bond lengths (Berry et al, 1988).…”

“…For related structures, see: Yanar et al (2007); Bhattacharyya & Woollins (1995); İrişli & Yanar (2006); Berry et al (1988). For geometric analysis, see : Cremer & Pople (1975) …”

Ionic Platinum(II)–Imidobis(diphenylthiophosphinato) Complexes: Preparation, Structure, and Thermal Behavior

“…So, six-membered dppaS 2 -H rings are twist-boat in two complexes, and are very similar to that observed in related platinum and palladium analogues in the literature. 15,17 P-N bond lengths, N(1)-P(4) and N(1)-P(3), are 1.589(3) • and 1.596(2) • for 2 and 1.601(3) • and 1.619(3) • for 3. P-N bond lengths show a shortening relative to the neutral ligand.…”

“…14 Although a number of platinum, palladium, copper, cobalt, manganese, gold, and bismuth complexes have been reported, only a few of them are ionic complexes. [15][16][17] In recent years, a number of cationic rhodium, iridium, and osmium complexes containing the phosphine and diphosphine ligands have been known as very active hydrogenation catalysts. The catalysis results show that the cationic complexes are more efficient catalyst precursors for the hydrogenation and intramolecular cycloaddition reactions.…”