Trifluoromethylselenato(0) and trifluoromethyltellurato(0) complexes of platinum(II)

Structural and spectroscopic trends in mononuclear arylchalcogenolato-palladium(II) and -platinum(II) complexes: Crystal structures of [M(TeAr)2(dppe)] {M=palladium, platinum; Ar=phenyl, 2-thienyl; dppe=1,2-bis(diphenylphosphino)ethane}

“…Evidently, the solvent also plays a role. Isomerization of cis-[Pt(SeCF 3 ) 2 (PPh 3 ) 2 ] with electronegative trifluoromethylselenolato ligands to the trans-form takes place rapidly in dichloromethane, but the process in acetonitrile is much slower [20]. While the investigations of the analogous tellurolato complexes are sparse [20,21], it has been reported that, contrary to the analogous selenolato complex, there was no evidence of the isomerization of cis-[Pt(TeCF 3 ) 2 (PPh 3 ) 2 ] to the trans form [20].…”

Synthesis and Characterization of Methyl(perfluoroalkyl)Tellurium(II) Compounds, MeTeRf (Rf = CF3, C2F5), the Corresponding Tellurium(IV) Dihalides, MeTe(Rf)X2 (X = F, Cl, Br, I), and Bis(trifluoroacetates), MeTe(Rf)(OCOCF3)2

“…The low solubility of tetramethylammonium halides in common organic solvents makes this pathway to be versatile for further halide exchange reactions. In extension of our previous work,6,7 we herein present our recent results in the reaction with MeI [Equation (1)].…”

“…[NMe 4 ]TeCF 3 was shown as a versatile reagent for the preparation of group 116and platinum TeCF 3 compounds 7. The low solubility of tetramethylammonium halides in common organic solvents makes this pathway to be versatile for further halide exchange reactions.…”

Emerging trends in organotellurolate chemistry derived from platinoids

“…10) depending on the nature of the solvent (Schemes 14 and 16). 21,[133][134][135][136][137][138] It has been well established that the bonding energy between C-Te and Te-Te is quite comparable compared to other analogs of the chalcogen family, and therefore the reaction with tellurium ligands afforded polynuclear compounds. Tanaka et al found that upon performing an oxidative addition between Pd(0) or Pt(0) species with various telluroethers, cleavage of the C-Te bonds take place, leading to isolation of a compound with the composition [M(Ar)(TeAr)(PEt 3 ) 2 ] (M ¼ Pd, Pt) (Scheme 14).…”

“…1,9,10 There is indeed a considerable versatility in the various coordination modes of these molecules, which may include monodentate binding through E or through heteroatoms, bridging through a single E, bridging through both E and N, or chelating via the E to N backbone. 48,134 All these coordination modes, either alone or in combination, have been observed or assigned on the basis of spectroscopic and/or crystallographic evidence of both homo-and heteroleptic metal complexes (Scheme 21).…”