2-Aminopyrimidinium picrate

The geometric parameters of the title compound, C4H6N3 +·C6H2N3O7 −, are in the usual ranges. While two nitro groups are almost coplanar with the aromatic picrate ring [dihedral angles 3.0 (2) and 4.4 (3)°], the third is significantly twisted out of this plane [dihedral angle 46.47 (8)°]. Anions and cations are connected via N—H⋯O hydrogen bonds. The molecules crystallize in planes parallel to (11).

[1]  G. Sheldrick.  Phase annealing in SHELX-90: direct methods for larger structures , 1990 .

[2]  R. Gillespie,et al.  2-(oxadiazolyl)- and 2-(thiazolyl)imidazo[1,2-a]pyrimidines as agonists and inverse agonists at benzodiazepine receptors. , 1991, Journal of medicinal chemistry.

[3]  A. Katritzky,et al.  Regiospecific synthesis of 3-substituted imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrimidines, and imidazo[1,2-c]pyrimidine. , 2003, The Journal of organic chemistry.

[4]  M. C. Etter,et al.  2‐Aminopyrimidine–succinic acid (1/1) cocrystal , 1990 .

[5]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[6]  Ghosh,et al.  1:1 hetero-assembly of 2-aminopyrimidine and (+)-camphoric acid , 2000, Acta crystallographica. Section C, Crystal structure communications.

[7]  A. N. Mayekar,et al.  2‐(4‐Methyl­benzoyl­oxymeth­yl)‐5‐(5‐methyl‐2,4‐dioxo‐1,2,3,4‐tetra­hydro­pyrimidin‐1‐yl)tetra­hydro­furan‐3‐yl 4‐methyl­benzoate , 2007 .

[8]  B. V. Ashalatha,et al.  5-Bromo­pyrimidin-2(1H)-one , 2007 .

[9]  J. Press,et al.  Synthesis of (aryloxy)alkylamines. 2. Novel imidazo-fused heterocycles with calcium channel blocking and local anesthetic activity. , 1988, Journal of medicinal chemistry.

[10]  A. Fischer,et al.  Ethyl 7-methyl-2- 4-(methylsulfanyl)benzylidene -5- 4-(methylsulfanyl) phenyl -3-oxo-2,3-dihydro-5H-thiazolo 3,2-a pyrimidine-6-carboxylate , 2007 .

[11]  E. De Clercq,et al.  Synthesis of acyclo-C-nucleosides in the imidazo[1,2-a]pyridine and pyrimidine series as antiviral agents. , 1996, Journal of medicinal chemistry.

[12]  Anthony L. Spek,et al.  Journal of , 1993 .

[13]  良二 上田.  J. Appl. Cryst.の発刊に際して , 1970 .

[14]  G. Sheldrick.  A short history of SHELX. , 2008, Acta crystallographica. Section A, Foundations of crystallography.

[15]  Y. Rival,et al.  Antifungal activity in vitro of some imidazo[1,2-a]pyrimidine derivatives , 1991 .

[16]  J. Schlueter,et al.  5-Amino­pyrimidine , 2006 .

[17]  M. Turnbull,et al.  Transition metal halide salts and complexes of 2-aminopyrimidine: manganese(II) compounds – crystal structures of (2-aminopyrimidinium)4 [MnCl4(H2O)]2, [(2-aminopyrimidine)2MnBr2(H2O)2·2H2O and (2-aminopyrimidinium)2+[MnBr2(H2O)4]Br2 , 2003 .

[18]  M. Bolte,et al.  Methyl (4-oxo-1-phenyl-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-5-yl)acetate , 2007 .