Publication details
Bis(2-amino-4-methylpyrimidin-3-ium) trans-diaquabis(pyrazine-2,3-dicarboxylato)cobaltate(II) hexahydrate
| Authors | |
|---|---|
| Year of publication | 2010 |
| Type | Article in Periodical |
| Magazine / Source | Acta Crystallographica Section E: Structure Reports Online |
| MU Faculty or unit | |
| Citation | |
| Web | https://doi.org/10.1107/S1600536810037736 |
| Doi | http://dx.doi.org/10.1107/S1600536810037736 |
| Keywords | single-crystal X-ray study; T = 120 K; mean (C–C) = 0.002 angstrom; R factor = 0.025; wR factor = 0.064; data-to-parameter ratio = 10.8. |
| Description | In the crystal structure of the mononuclear title compound, (C(5)H(8)N(3))(2)[Co(C(6)H(2)N(2)O(4))(2)(H(2)O)(2)]center dot 6H(2)O or (ampymH)(2)[Co( pyzdc)(2)(H(2)O)(2)]center dot 6H(2)O (ampym = 2-amino-4-methyl pyrimidine, pyzdcH(2) = pyrazine-2,3-dicarboxylic acid), the Co(II) ion is hexacoordinated by two (pyzdc)(2-) groups in the equatorial plane and two water molecules in axial positions, giving an N(2)CoO(4) bound set. The (pyzdc)(2-) anion acts as a bidentate ligand through one carboxylate group O atom and pyrazine ring N atom. There are diverse N-H center dot center dot center dot O and O-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen-bonding interactions, which lead to the formation of a three-dimensional supramolecular architecture. Off-set or slipped pi-pi stacking interactions are also observed between adjacent pyrimidine rings with face-to-face distances of 3.6337 (9) angstrom. |