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Acta Cryst. (2012). E68, m29-m30  [ doi:10.1107/S1600536811052378 ]

Aquabis(1,1,1,5,5,5-hexafluoroacetylacetonato)[4'-(4-pyridyl)-2,2':6',2''-terpyridine]ytterbium(III) chloride methanol monosolvate monohydrate

T. Okawara, J. Feng, M. Abe and Y. Hisaeda

Abstract: The title compound, [Yb(C5HF6O2)2(C20H14N4)(H2O)]Cl·CH3OH·H2O, adopts an eight-coordinated geometry around the YbIII atom consisting of a 4'-(4-pyridyl)-2,2':6',2''-terpyridine (pytpy) ligand, two 1,1,1,5,5,5-hexafluoroacetylacetonate (hfac) anions and an aqua ligand. In the solid state, the compound forms supramolecular chains running along the b-axis via intermolecular hydrogen bonds between the Yb-OH2 unit and the N-atom donor of the 4-pyridyl pendant of pytpy, with an O...N distance of 2.686 (4) Å. A chloride counter-anion and lattice methanol and water solvent molecules occupy a hydrophilic columnar space along the coordination chains. O-H...Cl hydrogen bonds occur. The two water molecules and the four trifluoromethyl groups are disordered over two sets of sites, each with different occupancy ratios.

Online 10 December 2011


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