title: Hydrogen bonding in N,N'-bis[(1S)-2-azido-1-(2-methylpropyl)ethyl]oxalamide: twofold symmetry of R(2)(2)(10) hydrogen-bonded dimers connected into an alpha-network.
abstract: The title compound, C(14)H(26)N(8)O(2), belongs to a class of retropeptides with an oxalamide unit (-NH-CO-CO-NH-), and is a precursor for the synthesis of an amine-terminal gelator. The compound is a good synthon for one-dimensional hydrogen bonding. The crystal structure reveals a hydrogen-bonded cyclic dimer with unusual twofold rotation symmetry.
authors.affiliation: Rudjer Bosković Institute, PO Box 180, HR-10002 Zagreb, Croatia.
authors.forename: Zoran
authors.initials: Z
authors.lastname: Stefanić
authors.forename: Biserka
authors.initials: B
authors.lastname: Kojić-Prodić
authors.forename: Zoran
authors.initials: Z
authors.lastname: Dzolić
authors.forename: Darinka
authors.initials: D
authors.lastname: Katalenić
authors.forename: Mladen
authors.initials: M
authors.lastname: Zinić
authors.forename: Anton
authors.initials: A
authors.lastname: Meden