Synthesis and coordination chemistry of fluorinated xanthate ligands

Coordination chemistry of perfluoroalkylated phosphorus(III) ligands

“…However, these variations often amount to little more than 2-5% of the numerical magnitude of the particular experimentally observed parameter, some of which is within the inherent error in data acquisition. This observation is broadly in line with conclusions drawn from crystallographic studies of perfluoroalkylated and perprotio metal complexes [5][6][7][8][9]22,28], where variations in the bond lengths and bond angles in the first coordination spheres of the metal centres are minimal, suggesting that differences in catalytic activity between fluorous and non-fluorous metal complexes [30][31][32] may arise from other factors such as solubilities, clustering, catalyst/ligand mobility and solvent effects rather than the modest changes in electronic properties of the metal centres in such species. Table 1 Spectroscopic data for selected metal complexes containing perfluoroalkylated ligands and some related perprotio congeners.…”

“…The 31 P{ 1 H} NMR spectrum is a highly asymmetric AB pattern in which 1 J PtP (2500 Hz, L1; 2455 Hz, PEt 3 ) and 2 J PP (515 Hz) are assignable to the trans-[PtCl 2 (PEt 3 )(PPh 2 C 2 H 4 C 6 F 13 )] species (9). However, the formation of exclusively the trans-isomer in this particular reaction cannot be ascribed to the steric bulk of the incoming ligand, and must be a consequence of some highly specific electronic effect.…”

“…We have been particularly interested in the electronic and steric implications of the perfluoroalkyl substituents on the donor properties of perfluoroalkylated ligands in coordination chemistry and the structural impact of the fluorous ponytails on the solid state structures of the coordination compounds [5][6][7][8][9][10]. Phosphorus(III) ligands, primarily due to the widespread application in catalytic applications, have been the most extensively studied ligand class in fluorous chemistry, with considerable attention attached to electronically insulating the donor atom from the perfluoroalkyl substituents [5,6,11,12].…”

Soluble Xanthate Compounds for the Solution Deposition of Metal Sulfide Thin Films

“…The organic salts were obtained by metathesis of K(EtXn) with the respective organic halide salt. A typical procedure is detailed for (Me 4 N)(EtXn) 30. Note: All other organic ethylxanthate salts were synthesised on a smaller scale based on a 1:1 ratio with K(EtXn) (0.05 g).…”

“…A typical procedure is detailed for (Me 4 N)(EtXn). [30] Note: All other organic ethylxanthate salts were synthesised on a smaller scale based on a 1:1 ratio with K(EtXn) (0.05 g).…”