title: Lysergol monohydrate.
abstract: IN THE TITLE COMPOUND [SYSTEMATIC NAME: (7-methyl-4,6,6a,7,8,9-hexa-hydro-indolo[4,3,2-fg]quinoline-9-yl)methanol monohydrate], C(16)H(18)N(2)O·H(2)O, the non-aromatic ring (ring C of the ergoline skeleton) directly fused to the aromatic rings is nearly planar, with a maximum deviation of 0.659 (3) Å, and shows an envelope conformation. In the crystal, hydrogen bonds between the lysergol and water mol-ecules contribute to the formation of layers parallel to (10[Formula: see text]).
authors.affiliation: BAM Federal Institute for Materials Research and Testing, Department Analytical Chemistry, Reference Materials, Richard-Willstätter-Strasse 11, D-12489 Berlin-Adlershof,  Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Merkel
authors.forename: Robert
authors.initials: R
authors.lastname: Köppen
authors.forename: Matthias
authors.initials: M
authors.lastname: Koch
authors.forename: Franziska
authors.initials: F
authors.lastname: Emmerling
authors.forename: Irene
authors.initials: I
authors.lastname: Nehls