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The crystal structure of a (3-phenylureido)-a (2, 4-dichlorophenyl)methyl phenylphosphinic acid, C20H17Cl2N2O3P, Mr= 435. 25,which was obtained bydesulphurisation of cis-3, 4-dipheny1-5- (2, 4-dichlorophenyl ) -1, 3, 4-diazaphospholidin2-thione-4-oxide utilizing Ag+ -H2O system in a yield of 89%, is reported. It crystallizes in orthorhombic space group Pca21 with a= 11. 286(2), b= 20. 601 (4) f c=8. 695(2)A, V= 2021 (1) A3, Z= 4, D.= 1. 430 g/cm3, p=4. 21 cm-1, F(000) =896.The final R factor is 0. 040 and Rw is 0. 045 for 946 unique observed reflections[I>3a(I)]. The result of X-ray analysis indicates that the molecules in the crystal are linkedtogether by the O(3 ) ...H (2d) - N (2d ) intermolecular hydrogen-bondings.
The crystal structure of a (3-phenylureido) -a (2,4-dichlorophenyl) methyl phenylphosphinic acid, C20H17Cl2N2O3P, Mr = 435. 25, which was obtained by desulphurisation of cis-3, 4-dipheny 1-5- (2,4 -dichlorophenyl) -1,3,4-diazaphospholidin2-thione-4-oxide utilizing Ag + -H2O system in a yield of 89%, is reported. It crystallizes in orthorhombic space group Pca21 with a = 11. 286 (2), b = 20.301 g / cm3, p = 4.21 cm-1, F (F 000) = 896.The final R factor is 0. 040 and Rw is 0. 045 for 946 unique observed reflections [I> 3a (I)]. The result of X-ray analysis indicates that the molecules in the crystal are linked together by the O (3) ... H (2d) - N (2d) intermolecular hydrogen-bondings.