Abstract
The heterobimetallic Yb(II) mixed ligand complex L2Yb2LiI31 has been prepared by the reaction of the lithium salt of the ligand L with the ytterbium diiodide. Compound 1 is characterized by single crystal X-ray structural analysis, multinuclear NMR and mass spectrometry. Complex 1 consists of LYbI and LLi units connected with the central Yb(1) atom. The latter is surrounded by the LYbI and LLi moieties in a sandwich like structure including two bridging iodine atoms. The NCCCN unsaturated system of the ligand in each of the units is almost planar and π coordinated to the Yb(1) atom. These two planar units are tilted to each other and the pendant arms of the β-diketiminato ligand in each moiety are bent. The metal atoms are located out of the NCCCN plane of the ligands and the three metal atoms in complex 1 form almost a straight line.
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