Ditolyldithiophosphato derivatives of phosphorus(III) and phosphorus(V)

Triethylammonium salt of dimethyl diphenyldithiophosphates: Single crystal X-ray and DFT analysis

“…39 The N-H bond length in compounds 1 and 2 are 0.881 (13) and 0.87(5) Å, which are in reasonable agreement with the values found in compound 3 (0.94(4) Å) 25 (table 3). P1-S1 and P1-S2 bond lengths for compound 1 are 1.9413(5) and 1.9779(5) Å while for compound 2, bond lengths are 1.9440 (18) and 1.9626 (18) Å. These bond lengths are comparable with compound 3 (1.9389(12) and 1.9586(12) Å).…”

“…Some metal complexes with the ditolyl/dibenzyl dithiophosphate ligands have also been reported. [16][17][18][19][20][21][22][23][24] In our laboratory, we were successful in isolating a number of triethylammonium salt of disubstituted diphenyldithiophosphates 25 and their metal derivatives. 26 The * For correspondence literature survey reveals only a few reports of theoretical calculations on the structural and vibrational properties of dithiophosphates.…”

O-Tolyl/benzyl dithiocarbonates of phosphorus(III) and (V): syntheses and characterization

“…It is evident from the 13 C NMR spectra of all compounds that the peak in the region d = 165.0-201.7 ppm is characteristic of the CS 2 group which further supports the authenticity of these compounds. Therefore, in conjunction with the literature reports [37][38][39][40][41][42][43][44][45][46][47][48][49], the following type of general structure may be deduced for the sodium salt of (o-, m-, and p-cresyl/ benzyl) dithiocarbonate ligands akin to that of ditolyldithiophosphate [51]. The 31 P chemical shift values favor the formation of these compounds with a monodentate linkage between the dithiocarbonate ligand and the phosphorus atom.…”

“…On the basis of our IR, mass, and NMR ( 1 H, 13 C, and 31 P) spectral studies and in conjunction with the literature reports [37][38][39][40][41][42][43][44][45][46][47][48][49], a probable geometry may be assigned to these compounds. It is evident from the 13 C NMR spectra of all compounds that the peak in the region d = 165.0-201.7 ppm is characteristic of the CS 2 group which further supports the authenticity of these compounds.…”

“…The characteristic stretching bands in the IR spectra (4,000-400 cm -1 ) were assigned by comparison with literature data [37][38][39][40][41][42][43][44][45][46][47][48][49]. The IR spectra show the characteristic sharp band for m (C-O-C) and broad band for m (C=C) (tolyl and benzyl ring stretching) in the range 1,043-1,015 and 1,607-1,581 cm -1 , respectively.…”