The synthesis and crystal structure of PMBP-NTH and PMBP-PAH are presented in this paper. The crystal structures were determined by X- ray single crystal diffraction. Crystal structure of PMBP-NTH belongs to triclinic system with space group P1. The unit cell parameters are a=0.9024(2)nm, b=1.0953(2)nm, c=1.1635(2)nm, α67.070(10)°,β=68. 220(10)°, γ=84.770(10)° ,V=0.9816(3)nm^3, Z=2, Dc=1.345g/cm^3, μ=0. 090mm^-1, F(000)=416. The crystal structure of PMBP-PAH belongs to monoclinic system with space group P21/c. The unit cell parameters are a=1.2715(4)nm, b=0.91710(10)nm, c=1.8979(3)nm, β=106.890(10)°, V=2.1177(8)nm^3, Z=4, Dc=1.338g/cm^3, μ=0.090mm^-1, F(000)=896, R=0. 0414, ωR=0.0972.

Key words: PYRAZOLONE P, PYRAZOLINE P, CRYSTAL STRUCTURE, HYDROGEN BONDS