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

ABSTRACT: The mononuclear title complex, [Pr(C(7)H(5)O(3))(2)(NO(3))(C(12)H(8)N(2))(2)], is isostructural with related complexes of other lanthanides. The Pr(III) atom is in a pseudo-bicapped square-anti-prismatic geometry, formed by four N atoms from two chelating 1,10-phenanthroline (phen) ligands and six O atoms, four from two 2,6-dihy-droxy-benzoate (DHB) ligands and the other two from nitrate anions. ?-? stacking inter-actions between the phen and DHB ligands [centroid-centroid distances = 3.518?(2) and 3.778?(2)?Å] and the phen and phen ligands [face-to-face separation = 3.427?(6)?Å] of adjacent complexes stabilize the crystal structure. Intra-molecular O-H?O hydrogen bonds are observed in the DHB ligands.

SUBMITTER: Wang C 

PROVIDER: S-EPMC3050355 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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

Wang Chiya C   Gu Xiaojin X   Wang Xinqing X   Jin Hongxiao H  

Acta crystallographica. Section E, Structure reports online 20101204 Pt 1

The mononuclear title complex, [Pr(C(7)H(5)O(3))(2)(NO(3))(C(12)H(8)N(2))(2)], is isostructural with related complexes of other lanthanides. The Pr(III) atom is in a pseudo-bicapped square-anti-prismatic geometry, formed by four N atoms from two chelating 1,10-phenanthroline (phen) ligands and six O atoms, four from two 2,6-dihy-droxy-benzoate (DHB) ligands and the other two from nitrate anions. π-π stacking inter-actions between the phen and DHB ligands [centroid-centroid distances = 3.518 (2)  ...[more]

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