Syntheses of mixed-ligand coordination compounds Sm(2,2′-bipy)(S2CN(C2H2))2 and SmPhen(S2CN(C2H5)2)3. crystal structure of Sm(2,2′-bipy)(S2CN(C2H5)2)3

A new continuous two-step molecular precursor route to rare-earth oxysulfides Ln2O2S

“…These reagents combine the advantages of easy use (no particular precautions being required) and very poor coordination ability of the triflate ligand, with no competition against the rare-earth-sulfur coordination as a result. As detailed in the experimental section, the syntheses were successfully carried out in acetonitrile with generally excellent yield and purity, without need of recrystallization unlike other methods [44,45,47]. The experimental procedure was identical for all the Y, Pr-Nd, Sm-Lu rare earth elements, and for phen as well as bipy.…”

“…For this reason, the availability of air-stable S-based rare earth complexes is quite limited. The only serious candidates are the heteroleptic compounds in which the N,N-dialkydithiocarbamate ligand is associated with bidentate nitrogen-donating ligands, in particular [Ln(Et 2 dtc) 3 (phen)] and [Ln(Et 2 dtc) 3 (bipy)] (where Et 2 dtc refers to N,N-diethyldithiocarbamate, phen to 1,10-phenanthroline, and bipy to 2,2 0 -bipyridine), for which the syntheses have already been described in several papers [42][43][44][45][46][47][48][49][50]. These compounds have been successfully used for synthesis of rare earth sulfides [47].…”

“…The synthesis of the selected molecular precursors ([Ln(Et 2 dtc) 3 (phen)] and [Ln(Et 2 dtc) 3 (bipy)]) has been reported in several papers [42][43][44][45][46][47][48][49][50]. The methods differ in lanthanide salts, namely chloride, perchlorate or nitrate, and solvents used, acetonitrile, ethanol, acetone and water among others.…”

Thermochemistry of gadolinium chloride hydrate with diethylammonium diethyldithiocarbamate

“…In addition, they have been used as a catalyst for vulcanization [3,4]. Characterizations and structures of these kind of compounds can be found in the literatures [5][6][7][8][9][10][11][12][13][14][15][16], along with the preparation and characterization of nanocrystalline materials of sulfide [17]. Calorimetry is recognized as an experimental method for the determination of both thermodynamics and kinetics of a chemical reaction.…”

Determination of the Specific Heat Capacity of RE(Et2dtc)3(phen) by Microcalorimetry

“…[1][2][3][4] The vast investigations have been reported on preparations, characterizations and structures of these compounds, [5][6][7][8][9] which are meaningful for explaining the bonding characteristic of rare earth elements and expanding the application of these complexes. To our interests, these complexes were the precursors for preparing lanthanide sulfide.…”