Ravikumar R. Gowda

Triethyl­ammonium 1,1′-binaphthyl-2,2′-diyl phosphate

In the crystal structure of the title compound, C6H16N+·C20H12O4P−, an N—H⋯O interaction links the cation to the anion. The N atom in the triethylammonium cation exhibits a trigonal-bipyramidal coordination geometry and forms an N—H⋯O interaction with one phosphate O atom of the 1,1′-binaphthyl-2,2′-diyl phosphate ligand. A bifurcated C—H⋯O interaction with the other phosphate O atom links molecules along the a axis. The dihedral angle between the two naphthyl ring systems is 58.92 (3)°. The refined Flack parameter value of 0.50 (10) indicates inversion twinning.

p-Tolyl­methanaminium cyclo­hexane-1,2-diyl phosphate

In the title molecular salt, C8H12N+·C6H10O4P−, the cation and anion are connected by N—H⋯O hydrogen bonds. The C atoms of the cyclohexane ring are disordered over two sets of sites in a 0.51 (4):0.49 (4) occupancy ratio to generate two superimposed chair conformations. One of the terminal phosphate O atoms is also disordered in a 0.62 (2):0.38 (2) ratio.

1,1'-Binaphthyl-2,2'-diyl benzyl-phos-phoramidate.

In the title compound, C27H20NO3P, the P atom exhibits a somewhat distorted PNO3 tetrahedral geometry, with the O—P—O angle for the binaphthyl fragment being 102.82 (6)°. The dihedral angle between the naphthyl ring systems is 59.00 (2)°. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate R 2 2(8) loops.