Synthesis of novel chiral tellurium complexes by redox reaction of planar chiral cyclomercurated ferrocenylimines with tellurium powder and X-ray crystal structure of [TeCl{C5H5FeC5H3C(CH3)N-C6H4-4-CH3}]

摘要: Abstract The redox reaction of planar chiral cyclomercurated ferrocenylimines (R)-(+)-[HgCl{C5H5FeC5H3C(CH3)NAr}] (Ar=substituted phenyl) with tellurium powder was carried out in refluxing toluene to give optically active cyclotellurated (R)-(+)-[TeCl{C5H5FeC5H3C(CH3)NAr}], which were characterized by elemental analysis, IR and 1H NMR spectra. proceeded retention the chirality ferrocene moiety, confirmed CD crystal structure [TeCl{C5H5FeC5H3C(CH3)N-C6H4-4-CH3}] showed that TeN distance 2.28 A is shorter than sum van der Waals radii Te N (3.70 A), indicating presence N→Te intramolecular coordination.