title: 4,5,6,7,8,9-Hexahydro-2H-cyclo-octa[c]pyrazol-1-ium-3-olate.
abstract: The title compound, C(9)H(14)N(2)O, exists in the zwitterionic form in the crystal. The cyclo-octane ring adopts a twisted boat-chair conformation. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into sheets lying parallel to bc. The structure is also stabilized by π-π inter-actions, with a centroid-to-centroid distance of 3.5684 (8) Å.
authors: Hoong-Kun
authors: HK
authors: Fun
authors: Chin Sing
authors: CS
authors: Yeap
authors: R Venkat
authors: RV
authors: Ragavan
authors: V
authors: V
authors: Vijayakumar
authors: S
authors: S
authors: Sarveswari
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references: 19171970
references: Eur J Med Chem. 2010 Mar;45(3):1173-80
references: 20053480