Bulky-hindrance-controlled ligand transformation from linked bis(amidinate) to linked imido-amidinate promoted by a mono(cyclopentadienyl)titanium group

Sheng Di Bai, Jian Ping Guo*, Dian Sheng Liu, Wai Yeung WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

A novel class of silyl-linked bis(amidinate) ligands [SiMe 2-{NC(Ph)N(2,6-R2Ph)Li)2] [L1 (R = H), L2 (R = Me), and L3 (R = iPr)] reacted with TiCl 3(C5H5) to produce the half-sandwich titanium complexes 1,2, and 3. The molecular structures of 1-3 were confirmed successfully by X-ray crystallography. An unprecedented intramolecular ligand transformation from the linked bis(amidinate) configuration to the linked imido-amidinate configuration took place in the cases of L1 and L2. It was found that the rearrangement process was related to the steric hindrance of the terminal substituents.

Original languageEnglish
Pages (from-to)4903-4907
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Issue number23
DOIs
Publication statusPublished - 4 Dec 2006

Scopus Subject Areas

  • Inorganic Chemistry

User-Defined Keywords

  • Bis(amidinate)
  • Bulky hindrance
  • Crystal structure
  • Ligand transformation
  • Steric hindrance
  • Titanium

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