Get access

Zirconium Complexes of Two Different Iminopyrrolyl Ligands – Syntheses and Structures

Authors

  • Ravi K. Kottalanka,

    1. Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram 502205, Andhra Pradesh, India
    Search for more papers by this author
  • Kishor Naktode,

    1. Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram 502205, Andhra Pradesh, India
    Search for more papers by this author
  • Tarun K. Panda

    Corresponding author
    1. Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram 502205, Andhra Pradesh, India
    • Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram 502205, Andhra Pradesh, India, Fax: + 91-40-23016032

    Search for more papers by this author

  • Dedicated to Professor Anil J. Elias on the Occasion of His 53rd Birthday

Abstract

The reaction involving N-aryliminopyrrolyl ligand, 2-((p-Me-C6H3N=CMe)–C4H3NH) (1a) (ImpMe-H), and Zr(OtBu)4 in a 2:1 molar ratio in toluene at 90 °C afforded the corresponding bis(iminopyrrolyl) complex of zirconium, [(ImpMe)2Zr(OtBu)2] (2a) having two bidentate iminopyrrole groups in the coordination sphere. In contrast, the bulkier 2-((2,6-iPr2C6H3N=CH)–C4H3NH) (1b) (ImpDipp-H) and Zr(OtBu)4 in a 1:1 molar ratio under the same condition yielded the corresponding mono(iminopyrrolyl) complex of zirconium, [(ImpDipp)Zr(OtBu)3(THF)] (2b), which contains only one bidentate iminopyrrole moiety in the coordination sphere. Both complexes were characterized by single-crystal X-ray diffraction analysis. The solid-state structures reveal that the bulky iminopyrrole ligands cause a steric crowding around the zirconium ion along with three tert-butoxide ligands attached to the central metal atom.

Get access to the full text of this article

Ancillary