Bis(1,3-diphenylpropane-1,3-dion-ato-k2O,O′){hydrotris[3- (2-pyridyl)-pyrazol-1-yl]borato}praseodymium(III): Another member of an unpredictable series

Abstract

Reaction of praseodymium(III) chloride with stoichometric quantities of dibenzoylmethane (Hdbm) and hydrotris[3-(2-pyridyl)pyrazol-1-yl] borate (Tp 2py) affords the title complex, [Pr(C24H 19BN9)(C15H11O4) 2]. The lanthanide ion in this ternary complex exhibits an N 6O4 ten-coordinate geometry arising from the five bidentate arms found on the anionic ligands. The structure is entirely different from those found in other lanthanide complexes with the same ligand set. © 2005 International Union of Crystallography.