Acta Cryst. (2001). E57, m578-m580  [ doi:10.1107/S1600536801018797 ]

A solvated ytterbium diaryl: bis(1,1':3',1''-terphenyl-C^2')bis(tetrahydrofuran-O)ytterbium(II)

M. Niemeyer

Abstract: The title compound, [Yb(Dpp)₂(thf)₂] [Dpp = 2,6-Ph₂C₆H₃ (m-terphenyl), C₁₈H₁₃, and thf = tetrahydrofuran, C₄H₈O], is the first example of a structurally characterized Yb^II diaryl. The Yb atom shows a strongly distorted tetrahedral environment formed by the C atoms of two aryl groups (average Yb-C = 2.520 Å) and the O atoms of two tetrahydrofuran ligands (average Yb-O = 2.412 Å). In addition, there are two weak ¹--arene interactions (average YbC = 3.138 Å) involving ortho-C atoms of the m-terphenyl phenyl groups.

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