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The two crystal structures of C_(17)H_(17),N_2O_2Cl_2PS (NP-8) and C_(17)H_(19)N_2O_2PS (NP-10-Ⅱ) have beendetermined by Patterson method. The crystals belong to monoclinic system with space group of P2_1/aand P2_1/n respectively. There are four molecules in the unit cell. Cell parameters: a = 26.622 (7)A, b = 7.711 (2) A., c = 9.461 (3) A, β = 94.90°(4) and a = 18.879(3) A, b = 10.199 (13) A, c = 8.948(3) A, β= 94.30°(3) for the two cells. After refinement by block diagonal matrix least squares me-thod, R factors are 0.046 for 2971 reflections of NP-8 and 0.076 for 1711 reflections of NP-10-Ⅱ. Referring to molecular structures of NP-8 and NP-10-Ⅱ spectra data have been satisfactorilycxplained. The characteristic features of the structures have been discussed.
The two crystals structures of C_ (17) H_ (17), N_2O_2Cl_2PS (NP-8) and C_ (17) H_ (19) N_2O_2PS have been determined by Patterson method. The crystals belong to monoclinic system with Cell parameters: a = 26.622 (7) A, b = 7.711 (2) A., c = 9.461 A, β = 94.90 ° and a = 18.879 (3) A, b = 10.199 (13) A, c = 8.948 (3) A, β = 94.30 ° (3) for the two cells. After refinement by block diagonal matrix least squares me-thod, R factors are 0.046 for 2971 reflections of NP-8 and 0.076 for 1711 reflections of NP-10-II. Referring to molecular structures of NP-8 and NP-10-II spectra data have been satisfactorilycxplained. The characteristic features of the structures have been discussed.