title: N,N'-Butane-1,4-diylbis(bromoacetamide).
abstract: The title compound, C8H14Br2N2O2, lies about an inversion centre and adopts a pleated conformation, with the C(O)-NH-CH2-CH2 and NH-CH2-CH2-CH2 torsion angles of the butanediamine residue being -89.5 (6) and -62.1 (7) degrees, respectively. These data are useful in discerning the structure of polymers containing such a unit. A skew conformation is found for the Br-CH(2)-C(O)-NH torsion angle [-124.2 (4) degrees]. The molecular packing is stabilized by strong hydrogen bonds between amide groups and also by weak CH2...OC interactions. In this way, each molecule interacts with its six closest neighbours through eight hydrogen bonds.
authors.affiliation: Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Avinguda Diagonal 647, E-08028 Barcelona, Spain.
authors.forename: Meritxell
authors.initials: M
authors.lastname: Martínez-Palau
authors.forename: Lourdes
authors.initials: L
authors.lastname: Urpí
authors.forename: Mercè
authors.initials: M
authors.lastname: Font-Bardia
authors.forename: Jordi
authors.initials: J
authors.lastname: Puiggalí
mesh_terms: D000081:Acetamides / Q000737:chemistry*; D002073:Butanes / Q000737:chemistry*; D005583:Fourier Analysis; D006860:Hydrogen Bonding; D008958:Models, Molecular
chemical_list: D000081:Acetamides; D002073:Butanes; C515468:N,N'-butane-1,4-diylbis(bromoacetamide)