title: Alaptide from synchrotron powder diffraction data.
abstract: THE TITLE COMPOUND [SYSTEMATIC NAME: (8S)-8-methyl-6,9-diaza-spiro-[4.5]decane-7,10-dione], C(9)H(14)N(2)O(2), consists of two connected rings, viz. a piperazine-2,5-dione (DKP) ring and a five-membered ring. The DKP ring adopts a slight boat conformation and the bonded methyl group is in an equatorial position. The five-membered ring is in an envelope conformation. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link mol-ecules into chains running parallel to the c axis.
authors.forename: Jan
authors.initials: J
authors.lastname: Rohlíček
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Maixner
authors.forename: Richard
authors.initials: R
authors.lastname: Pažout
authors.forename: Michal
authors.initials: M
authors.lastname: Hušák
authors.forename: Jana
authors.initials: J
authors.lastname: Cibulková
authors.forename: Bohumil
authors.initials: B
authors.lastname: Kratochvíl