Bis(2,6-dihy-droxy-benzoato-κO,O)(nitrato-κO,O')bis-(1,10-phenanthroline-κN,N')cerium(III)

Acta Crystallogr Sect E Struct Rep Online. 2010 Dec 4;67(Pt 1):m6-7. doi: 10.1107/S1600536810049755.

Abstract

The mononuclear title complex, [Ce(C(7)H(5)O(3))(2)(NO(3))(C(12)H(8)N(2))(2)], is isostructural to other related lanthanide structures. The Ce atom is in a pseudo-bicapped square-anti-prismatic geometry formed by four N atoms from two chelating 1,10-phenanthroline (phen) ligands and by six O atoms, four from two 2,6-dihy-droxy-benzoate (DHB) ligands and the other two from a nitrate anion. π-π stacking inter-actions between phen and DHB ligands [centroid-centroid distances = 3.513 (3) and 3.762 (2) Å] and phen and phen ligands [face-to-face separation = 3.423 (7) Å] of adjacent complexes stabilize the crystal structure. Intra-molecular O-H⋯O hydrogen bonds are observed in the DHB ligands.