title: 1,5-Bis(4-nitro-phen-oxy)penta-ne.
abstract: The title compound, C(17)H(18)N(2)O(6), crystallizes with two mol-ecules in the asymmetric unit. In both molecules, one of the C-C bonds of the penta-methyl-ene chain connecting the two aromatic rings is in a trans conformation and another displays a gauche conformation. The aromatic rings within each mol-ecule are nearly coplanar [dihedral angles = 3.36 (9) and 4.50 (9)°] and the nitro groups are twisted slightly out of the planes of their attached rings [dihedral angles = 8.16 (3)/6.6 (2) and 4.9 (4)/3.8 (3)°].
authors.forename: Muhammad Saif Ullah
authors.initials: MS
authors.lastname: Khan
authors.forename: Zareen
authors.initials: Z
authors.lastname: Akhter
authors.forename: Michael
authors.initials: M
authors.lastname: Bolte
authors.forename: M Saeed
authors.initials: MS
authors.lastname: Butt
authors.forename: Humaira M
authors.initials: HM
authors.lastname: Siddiqi