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

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. ?-? 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.

SUBMITTER: Huang B 

PROVIDER: S-EPMC3011488 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature

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

Huang Bao B   Chiya Wang W   Xinqing Wang W   Jin Hongxiao H  

Acta crystallographica. Section E, Structure reports online 20101120 Pt 12

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)  ...[more]

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