The {Pt2S2} core—a butterfly that stings

[(PPh3)4Pt2S2(SnCl)]+: A Pt‐Sn‐S Cluster with a Ternary Trigonal Bipyramidal Cluster Core

“…All peaks that could be assigned to reasonable compositions are labeled. The shown structure diagrams are meant as suggestions of possible cluster structures – in agreement with the X‐ray structural data or with previously reported clusters of similar (homologous) composition . A larger image of the overview and high resolution spectrum is provided in Figure S3 (Supporting Information).…”

“…The Pt atoms are surrounded by two P and two S atoms in a pseudo ‐square planar arrangement, with an angle of 129.39(6)–130.28(9)° between the two planes. The interatomic distance between the two Pt atoms of 3.26(0) or 3.27(7) Å is within the shorter range of the reported Pt ··· Pt distances in similar arrangements incorporating additional tin atoms [3.24(6)–3.37(2) Å] , , . This is in line with a somewhat larger interatomic distance of 3.05(8)–3.07(2) Å between the two S atoms with regard to reported values [2.99(8)–3.03(0) Å] , , .…”

“…The interatomic distance between the two Pt atoms of 3.26(0) or 3.27(7) Å is within the shorter range of the reported Pt ··· Pt distances in similar arrangements incorporating additional tin atoms [3.24(6)–3.37(2) Å] , , . This is in line with a somewhat larger interatomic distance of 3.05(8)–3.07(2) Å between the two S atoms with regard to reported values [2.99(8)–3.03(0) Å] , , . The larger Sn–S bond lengths naturally account for deviations from an ideal trigonal bipyramid, but the overall symmetry of the 5‐atom cluster core is still high (idealized C 2 v symmetry).…”

Supramolecular Macrocyclic Pd(II) and Pt(II) Squares and Rectangles with Aryldithiolate Ligands and their Excellent Catalytic Activity in Suzuki C–C Coupling Reaction

“…Note that the self-assembly of Pd­(dppp)­(OTf) 2 and pyrazine is prevented due to the steric crowding of phenyl groups of the phosphine ligand, whereas molecular squares are formed with 1,4-dicyanobenzene . The hinging of Pd 2 S 2 rings is reflected in the dihedral angles (∼127–144°) deviated from the flat conformation (θ = 180°), which has been established due to the attractive donor–acceptor interactions between the d z 2 and p z orbitals of the metal atoms. , The Pd···Pd distances in 3a (3.190 Å), 4a (3.254 Å), and 5a (3.258, 3.306 Å) within the same “Pd 2 S 2 ” core fall in the expected range of binuclear thiolato-bridged palladium complexes (Tables and ). − Although numerous sulfido- and thiolato-bridged palladium and platinum complexes of diverse nuclearity are reported, − the present macrocyclic structures are the first examples of supramolecular coordination complexes with thiolate ligands.…”

Is 2.07 Å a Record for the Shortest Pt−S Distance? Revision of Two Reported X-ray Structures

“…The complex [(Ph 3 P) 2 Pt(μ-S) 2 Pt(PPh 3 ) 2 ] 2+ is known since 1971 and has received much attention from the chemical viewpoint It is prone to react with electrophiles at the sulfur bridge(s) but it is also stabilized by hydrogen bonding (S···HOCH 2 CH 3 ) as recently shown by the structure of its adduct with ethanol . Remarkably, the Pt−S bonds in the structure of the adduct are almost 0.3 Å longer than in 1 , hence close to those in 2 .…”