(E)-N,N-Diethyl-2,6-diisopropyl-4-[2-(4-nitro-phen-yl)ethen-yl]aniline.

ABSTRACT: The title compound, C24H32N2O2, was prepared by Horner olefination of 4-di-ethyl-amino-3,5-diiso-propyl-benzaldehyde and diethyl p-nitro-benzyl-phospho-nate. There are two independent mol-ecules (A and B) in the asymmetric unit. Their main axes, defined by the line connecting the N atoms of the nitro and amino groups, open an angle of 79.42?(3)°. Steric hindrance around the amino group is reflected in a long aryl C-N bond [1.434?(3)?Å for mol-ecule A and 1.440?(3)?Å for mol-ecule B], a pyramidal geometry [angle sum = 350.0?(2)° for mol-ecule A and 349.6?(2)° for mol-ecule B], and dihedral angles between the phenyl-ene group and the plane defined by the CH2-N-CH2 unit of 86.9?(3)° for mol-ecule A and 88.3?(3)° for mol-ecule B. This gives structural support for the electronic decoupling of the amino group from the nearly planar nitro-stilbene moiety (r.m.s. deviation for C, N and O atoms = 0.097 for mol-ecule A and 0.107?Å for mol-ecule B).

SUBMITTER: Wink C 

PROVIDER: S-EPMC3885052 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature