LiYbCl(4)(THF)(4).

Area of Science:

• Organometallic Chemistry
• Coordination Chemistry
• Materials Science

Background:

• Ytterbium(III) chloride complexes are important in catalysis and materials science.
• Tetrahydrofuran (THF) is a common coordinating solvent in organometallic synthesis.
• Understanding the coordination environment of lanthanide complexes is crucial for predicting their reactivity.

Purpose of the Study:

• To synthesize and characterize a novel lithium ytterbium chloride complex.
• To elucidate the coordination structure and bonding in the [LiYbCl4(THF)4] compound.
• To investigate the structural motifs and intermolecular interactions in the synthesized complex.

Main Methods:

• Synthesis of the title compound via reaction of YbCl3(THF)3 with LiCl in THF.
• Single-crystal X-ray diffraction analysis to determine the molecular and crystal structure.
• Spectroscopic methods (e.g., NMR, IR) were likely employed for characterization (though not explicitly stated in the abstract).

Main Results:

• The title compound, di-μ-chlorido-dichlorido-tetra-kis-(tetrahydro-furan)-lithiumytterbium(III) [LiYbCl4(THF)4], was successfully prepared.
• The crystal structure reveals a central Yb(μ-Cl)2Li ring.
• The ytterbium atom is hexacoordinate (four chlorides, two THF), and the lithium atom is tetracoordinate (two chlorides, two THF).
• Two THF molecules exhibit positional disorder.

Conclusions:

• The study successfully synthesized and structurally characterized a novel lithium ytterbium chloride complex.
• The Yb(μ-Cl)2Li ring represents a key structural motif.
• The coordination geometry around both Yb and Li atoms has been precisely determined.