Abstract
Abstract Crystal and molecule structures of two NTDIOO derivatives have been determined by means of X-ray diffraction. Crystal 3: C15H18N3O4, Mw = 304, monoclinic, space group P2 1 a , with following unit cell parameters: a = 27.457(10) A , b = 7.419(4) A , c = 7.664(4) A , β = 97.82°, V = 1547.1(1.8) A , Z = 4. The final R is 0.085 for 1032 independent reflections with |F0| > 4σ(F0). Crystal 5: C17H20N3O4, Mw = 330, monoclinic, space group P2 1 n , with following unit cell parameters: a = 22.920(6) A , b = 6.133(4) A , c = 12.005(4) A , β = 98.59°, V = 1669.8(2.1) A 3 , Z = 4. The final R is 0.085 for 1010 independent reflections with |F0| > 3σ(F0). The probable relationship between the magnetic properties of these nitronyl nitroxides and crystal structures has been discussed.
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