Extending Chirality in Group XIV Metallatranes.

Area of Science:

• Organometallic Chemistry
• Coordination Chemistry
• Synthetic Chemistry

Background:

• Amino alcohols are versatile ligands in coordination chemistry.
• Metallatranes, featuring a metal atom coordinated by a tridentate ligand, exhibit unique structural and electronic properties.
• Understanding the synthesis and stereochemistry of metallatranes is crucial for developing new catalytic and material applications.

Purpose of the Study:

• To synthesize and characterize novel racemic and chiral amino alcohols.
• To prepare and investigate the structures of corresponding stannatranes and germatranes.
• To explore the formation of a trinuclear tin oxocluster and understand the factors governing diastereoselectivity in metallatrane synthesis.

Main Methods:

• Synthesis of amino alcohols and metallatranes.
• Characterization using NMR and IR spectroscopy, ESI-MS, and single crystal X-ray diffraction.
• Computational studies to analyze diastereoselectivity.

Main Results:

• Successful synthesis of racemic and chiral amino alcohols (L H3 and L chiral H3).
• Preparation of stannatranes (L SnO t-Bu and L chiral SnO t-Bu) and germatranes (L GeOEt and L chiral GeOEt).
• Formation of a trinuclear tin oxocluster [(μ3-O)(μ3-O-t-Bu){SnL chiral }3].
• Experimental and computational data provided insights into the stereoselective synthesis of metallatranes.

Conclusions:

• The study successfully synthesized a range of novel amino alcohols, stannatranes, germatranes, and a tin oxocluster.
• Characterization confirmed the structures and properties of the synthesized compounds.
• Computational analysis elucidated the diastereoselectivity observed during metallatrane formation, offering valuable insights for future synthetic strategies.