Bis(trifluoromethyltellurato(0))metallates(I) of copper, silver and gold, [M(TeCF3)2]− (M = Cu, Ag, Au)

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

“…A complete set of the NMR data for all derivatives synthesized or detected is provided in Table 1 indicating good agreement with data reported for the sulphur derivatives [8,[15][16][17] and related PtSeR, e.g., [9,10,[18][19][20] and PtTeR compounds e.g. [19][20][21] as well as, with respect to the ECF 3 group, group 11 metallates [6,7]. In solution the existence of only one cis-and one trans-isomer is anticipated, while in the solid state ½PtðERÞ 2 ðPR 0 3 Þ 2 complexes could give rise to four possible isomers, cis/anti, cis/syn, trans/anti and trans/syn [9] (Scheme 1).…”

“…The area is dominated by compounds containing the M-SR unit [2], while there has not been put much light on the heavier chalcogenates. The ease in obtaining trifluoromethylchalcogenates of sulphur [3], selenium [4], and tellurium [5], together with the poor solubility of tetramethylammonium halides in common organic solvents, encouraged us to study halide exchange reactions of these tetramethylammonium derivatives [3][4][5] and group 10 and 11 halides [6][7][8].…”

A Fluent Transition from Triiodide, I3−, to Tris(trifluoromethyltellurate)(1−), [(TeCF3)3]−—A Structural Study

“…Synthesis and molecular structure of [PNP][(TeCF 3 ) 3 ] (PNP = bis(triphenylphosphoranyliden)ammonium): Since [NMe 4 ][TeCF 3 ] has become easily accessible, [10] some efforts have been made to use this reagent to transfer the TeCF 3 group onto other elements. For example, [PNP]-[Au(TeCF 3 ) 2 ] [11] was obtained from the reaction of AuCl and [NMe 4 ][TeCF 3 ] followed by cation exchange with a PNP halide (PNP = bis(triphenylphosphoranyliden)ammonium). Already the molecular structure of this anion resembles the [AuI 2 ] À analogue, [12] suggesting similar electronic nature of both the iodide and the [TeCF 3 ] À group.…”

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.…”