Piano stool complexes containing the bulky pentaphenylcyclopentadienyl(C5Ph5) ligand: Preparation, characterization and X-ray structure of C5Ph5Zr(N(CH3)2)3 (I) |
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| Authors: | Jin An Rayshonda Williams Robert Bau |
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| Institution: | a Department of Chemistry and Biochemistry, California State University, 5151 State University Drive, Los Angeles, CA 90032, United States
b Department of Chemistry, University of Southern California, 3620 McClintock Avenue, Los Angeles, CA 90089-1062, United States |
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| Abstract: | Tris(dimethylamido) pentaphenylcyclopentadienyl zirconium (I) has been prepared and characterized by NMR spectroscopy and X-ray crystallography. The structure reflects the strong p-d amido donation with short Zr-N distances and Zr-C distances that are longer than those in the 16 electron C5Ph5(C5H5)ZrCl2. The reaction of I with (R)-(+)-sec-phenethyl alcohol to form the alkoxide complexes proceeds rapidly to the spectroscopically characterized tris((R)-(+)-sec-phenethyl alkoxide) complex, suggesting an activating effect upon alkoxide substitution. |
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| Keywords: | Pentaphenylcyclopentadienyl Zirconium Piano stool Dimethylamido Chiral complex |
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