Acta Crystallogr Sect E Struct Rep Online
June 2012
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 = 88.78 (7)°] pyridine-2,6-dicarboxyl-ate ligands in a distorted octa-hedral geometry.
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April 2012
In the title compound, (C(13)H(11)N(2))(2)[Zn(C(7)H(3)NO(4))(2)]·3H(2)O, the Zn(II) ion is six-coordinated with the N(4)O(2) donor set being a distorted octa-hedron through two almost perpendicular (r.m.s.
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October 2011
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.
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