Structural and spectroscopic investigation of 1-amino-2,4-dinitrobenzenes

M. VIRGINIA REMEDI; ELBA I. BUJÁN; RICARDO BAGGIO; MARÍA TERESA GARLAND

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY

JOHN WILEY & SONS LTD

Lugar: Chichester; Año: 1998 vol. 11 p. 895 - 895

0894-3230

he crystal structures of 1-pyrrolidino-2,4-dinitrobenzene (3) and 1-morpholino-2,4-dinitrobenzene (4) were determined by single-crystal x-ray diffraction and the structures in solution were investigated by UV?visible spectrophotometry and 13C and 1H NMR spectrosccopy. Compound 4 crystallizes in the monoclinic space group P21/n with one independent molecule per asymmetric unit and 3 crystallizes in triclinic P-1 with three independent molecules per asymmetric unit. Rotation of the o-nitro group and of the amino group out of the aromatic plane was observed in both the solid state and in solution for both compounds.