Carbacylamidophosphates: Synthethis and structure of N,N '-Tetramethyl-N ''-benzocylphosphoryltriamide and dimorpholido-N-benzoylphosphorylamide

N,N'-Tetramethyl-N"-benzoylphosphoryltriamide (I) and dimorpholido-N-benzoy lphosphorylamide (II) and their sodium salts NaI, NaII were synthesized and characterized by means of IR and H-1, P-31 NMR spectroscopy. The structure s of I, II were determined by X-ray diffraction: I monoclinic, space group P2(1)/c with a = 10.162(3), b = 11.469(4), c = 12.286(4) Angstrom, beta = 9 3.04 degrees, V = 1428.4(8) Angstrom(3), Z = 4, rho((caled.)) = 1.187 g/cm( 3); II monoclinic, space group C2/c with a = 15.503(4), b = 10.991(3), c = 22.000(6) Angstrom, beta = 106.39 degrees, V = 3596.3(17) Angstrom(3), Z = 8, rho((calcd.)) = 1.253 g/cm(3). The refinement of the structures converge d at R = 0.0425 for I, and R = 0.068 for II. In both structures the molecul es are connected into centrosymmetric dimers via hydrogen bonds formed by t he phosphorylic oxygen atoms and hydrogen atoms of amide groups.