Sterically Demanding Diamide Ligands: Synthesis and Structure of d0 Zirconium Alkyl Derivatives

✍ Scribed by Scollard, John D.; McConville, David H.; Vittal, Jagadese J.

• Book ID: 126890653
• Publisher: American Chemical Society
• Year: 1995
• Tongue: English
• Weight: 399 KB
• Volume: 14
• Category: Article
• ISSN: 0276-7333
• DOI: 10.1021/om00012a009

✦ Synopsis

The chelating diamide complexes (BDAPIZr-(NMed2 (21, (BDAP)ZrClz(pyh (4), (BDAP)ZrR2 (5a, R = CH2Ph; 5b, R = Me), (BDAP) Zr(l;15-Cp)C1 (5c), and(BDAP)Zr(rl2(N,C)-NC5H4)(CH2CMe2Ph) (5d) (BDAP = ArNCH2CH2CHJLAr; Ar = 2,6-iPr~-Cd-€3) have been prepared. An X-ray study of (BDAP)Zrf$(N,C)-NC5H4)-( CH2CMe2Ph) (5d) revealed an q2-pyridyl moiety bound to zirconium. Proton and carbon NMR data suggest that the pyridyl moiety in 5d is rotating rapidly about the Zr-C bond on the N M R time scale.