title: 4-tert-Butyl-2-(4-tert-butyl-pyridin-2-yl)pyridinium nitrate.
abstract: In the title compound, C(18)H(25)N(2) (+)·NO(3) (-), the dihedral angle between the pyridine rings is 19.06 (10)°. In the crystal, the ions are linked into a three-dimensional network by N-H⋯O and C-H⋯O hydrogen-bonding inter-actions.
authors.affiliation: School of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing 526061,  People's Republic of China.
authors.forename: Wen-Sheng
authors.initials: WS
authors.lastname: Wu
references.citation: Inorg Chem. 2001 Mar 12;40(6):1183-8
references.pmid: 11300816
references.citation: Inorg Chem. 2002 Jul 29;41(15):3967-74
references.pmid: 12132923
references.citation: Angew Chem Int Ed Engl. 2000 Jun 16;39(12):2081-2084
references.pmid: 10941021
references.citation: Inorg Chem. 2010 Jan 4;49(1):209-15
references.pmid: 19994841
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677