New diazaphospholes and diazaphosphorinanes with formula were synthesized and characterized by 1H, 13C, 31P NMR and IR spectroscopy and elemental analysis. The structure of compound 1 has been determined by X-ray crystallography. A one-dimensional polymeric chain was observed in the crystalline lattice produced by intermolecular -P=O. . .H-N- and -C=O. . .H-N-hydrogen bonds. Compounds 1 and 2 contain five-membered rings and show high values for 2J(PNH) and 2J(P,C) coupling constants due to the ring strain. These constants are reduced seriously in compounds with six-membered rings. In compound 6 with CCl3C(O)NH moiety, all phosphorus-hydrogen couplings are zero.

No abstract

No abstract

, respectively. The compounds were characterized by elemental analysis, IR and multinuclear NMR ( 1 H, 13 C, 31 P and 119 Sn) spectroscopy. The crystal structures of the complexes were determined by X-ray single crystal analysis, which revealed that complex 1 has a distorted octahedral geometry and complex 2 has a distorted trigonal bipyramidal structure with non-equivalent chlorine atoms. Preliminary antibacterial tests of the compounds against Gram-positive and -negative bacteria were carried out using the filter paper disk method and chloroamphenicol was used as standard for comparison.

No abstract