Crystal and Molecular Structures of N,N'-Diphenyl-N"-trichloroacetyl- phosphorictriamide and N,N,-Tetraethyl-N"-benzoylphosphorictriamide. The Effect of Various Substituents on the Structural Parameters of the [C(O)N(H)P(O)] Moiety

X-ray structures of two phosphazo analogues of β-diketones: N,N′-diphenyl-N″-trichloracetyl- phosphorictriamide and N,N′-tetraethyl-N″-benzoyl-phosphorictriamide have been determined. The results obtained in this study and the data reported earlier allow to discuss the impact of various substitutents on the phosphoricamido C(O)N(H)P(O) moiety.