RESUMO
The asymmetric unit of the title compound, (C(13)H(11)N(2))[Fe(C(7)H(3)NO(4))(2)]·4H(2)O, contains a 9-amino-acridinium cation, one anionic complex and four uncoordinated water mol-ecules. In the anionic complex, the Fe(III) ion is six-coordinated by two almost perpendicular [dihedral angle = 88.78â (7)°] pyridine-2,6-dicarboxyl-ate ligands in a distorted octa-hedral geometry. In the crystal, anions are connected into chains along [10-1] by weak C-Hâ¯O inter-actions, which create ten-membered hydrogen-bonded R(2) (2)(10) rings. These chains are linked by three-membered water clusters. The final three-dimensional network is constructed by numerous inter-molecular O-Hâ¯O and N-Hâ¯O inter-actions.
RESUMO
The asymmetric unit of the title compound, (C(13)H(11)N(2))(2)[Mn(C(7)H(3)NO(4))(2)]·3H(2)O, consists of a discrete mononuclear [Mn(2,6-pydc)(2)](2-) anionic complex (2,6-pydc is pyridine-2,6-dicarboxyl-ate) associated with two 9-amino-acridinium counter-ions for neutralization of charge and three uncoordin-ated water mol-ecules. The Mn(II) atom is six-coordinated by (2,6-pydc)(2-) anions in a tridentate fashion and is at the centre of a distorted octa-hedron formed by the MnO(4)N(2) bonding set. In the crystal, various inter-molecular inter-actions between different moieties can be found, such as different kinds of hydrogen bonds, offset or slipped π-π [centroid-centroid distances in the range 3.3704â (12) to 3.8674â (13)Å] and C=Oâ¯π [3.563â Å] inter-actions, which lead to the formation of a three-dimensional supra-molecular network.