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The crystal structure of 1-(1-t-butyl-5-methyl-4-pyrazolylcarbonyl)-3,5-dimeth- yl-1H-yl-pyrazole ([C14H20N4O]2, Mr = 520.68) has been determined by single-crystal X-ray diffraction analysis. The crystal belongs to triclinic, space group P with a = 11.049(4), b = 11.313(4), c = 13.964(5) , ?= 69.085(6), b = 75.962(6), = 62.245(6), V = 1436.7(9) 3, Z = 2, Dc = 1.204 g/cm3, m = 0.079 mm-1, F(000) = 560, R = 0.0790 and wR = 0.1416 for 4729 unique reflections with 2635 observed ones (I > 2(I)). The results indicate that the pyrazole rings display aromaticity. The four pyrazole moieties are approximately coplanar in each case. The dihedral angles between planes 1 and 2, 3 and 4 are 40.99 and 10.77? respectively.
The crystal structure of 1- (1-t-butyl-5-methyl-4-pyrazolylcarbonyl) -3,5-dimethoxy- 1 H -yl- pyrazole ([C14H20N4O] 2, Mr = 520.68) has been determined by single The crystal belongs to triclinic, space group P with a = 11.049 (4), b = 11.313 (4), c = 13.964 (5),? = 69.085 (6), b = 75.962 ( (000) = 560, R = 0.0790 and wR = 0.1416 for 6 = 62.245 (6) V = 1436.7 (9) 3 Z = 2 Dc = 1.204 g / cm3 m = 0.079 mm- 4729 unique reflections with 2635 observed ones (I> 2 (I)). The results indicate that the pyrazole rings display around. The four pyrazole moieties are approximately coplanar in each case. The dihedral angles between planes 1 and 2, 3 and 4 are 40.99 and 10.77? Respectively.