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

Bao Huang; Wang Chiya; Wang Xinqing; Hongxiao Jin

doi:10.1107/S1600536810047148

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

Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 20;66(Pt 12):m1612. doi: 10.1107/S1600536810047148.

Authors

Bao Huang¹, Wang Chiya, Wang Xinqing, Hongxiao Jin

Affiliation

¹ College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, People's Republic of China.

Abstract

The title mononuclear complex, [Eu(C(7)H(5)O(3))(2)(NO(3))(C(12)H(8)N(2))(2)], is isostructural with those of other lanthanides. The Eu 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 = 3.5312 (19) and 3.8347 (16) Å], and between phen and phen ligands [face-to-face separation = 3.433 (4) Å] of adjacent complexes stabilize the crystal structure. Intra-molecular O-H⋯O hydrogen bonds are observed in the DHB ligands.