title: Conformational difference between mono- and diprotonated cis-2,5-diphenylpiperazinium salts in the solid state.
abstract: Monohydrochlorides of cis-2,5-diphenylpiperazine assume a chair conformation, while the corresponding dihydrochlorides assume a boat form regardless of the substituent(s) at the nitrogen atom.
authors.affiliation: Institute for Chemical Research, Kyoto University, Uji, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Takasu
authors.forename: H
authors.initials: H
authors.lastname: Miyamoto
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Taga
authors.forename: M
authors.initials: M
authors.lastname: Bando
authors.forename: K
authors.initials: K
authors.lastname: Fuji
mesh_terms: D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010879:Piperazines / Q000737:chemistry*
chemical_list: D010879:Piperazines