Research Article: Bis(9-amino­acridinium) bis­(pyridine-2,6-dicarboxyl­ato-κ3O2,N,O6)nickelate(II) trihydrate

Date Published: June 01, 2010

Publisher: International Union of Crystallography

Author(s): Zohreh Derikvand, Marilyn M. Olmstead.


The title compound, (C13H11N2)2[Ni(C7H3NO4)2]·3H2O, consists of a mononuclear anionic complex, two 9-amino­acridinium cations and three uncoordinated water mol­ecules. Two pyridine-2,6-dicarboxyl­ate (pydc) ligands are bound to the NiII ion, giving an NiN2O4 bonded set. The coordination geometry around the NiII atom is distorted octa­hedral. There are two types of robust O—H⋯O hydrogen-bond synthons, namely R66(24) and R24(8), which link the complex anions and water mol­ecules to each other. N—H⋯O hydrogen bonds connect the stacks of anions and cations in the structure. Other inter­molecular inter­actions, including weak C—H⋯O hydrogen bonds, π–π [shortest centroid–centroid distance = 3.336 (7) Å] and C—O⋯π [O⋯centroid distance = 3.562 (10) Å] inter­actions, connect the various components.

Partial Text

For related structures containing [Ni(pydc)2]2− species, see: Aghabozorg et al. (2008 ▶, 2009 ▶); Attar Gharamaleki et al. (2009 ▶); Cui et al. (2009 ▶); Hadadzadeh et al. (2010 ▶); Safaei-Ghomi et al. (2009 ▶).




0 0 vote
Article Rating
Notify of
Inline Feedbacks
View all comments