47, 49Ti NMR spectra of half-sandwich titanium(IV) complexes

✍ Scribed by Milan Erben; Aleš Růžička; Michal Picka; Ivan Pavlík

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 90 KB
• Volume: 42
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1354

✦ Synopsis

Abstract

The ^47, 49^Ti chemical shifts, resonance line half‐widths (Δν~1/2~) and energies of the first electronic charge‐transfer transitions $(\lambda_{\max}^{\rm 1.CT})$ of Cp′TiX~3~, where Cp′ = η^5^‐C~5~H~5~ (Cp), η^5^‐C~5~H~4~Me (MeCp), η^5^‐C~5~HMe~4~ (Me~4~Cp), η^5^‐C~5~Me~5~ (Me~5~Cp), η^5^‐C~5~H~4~SiMe~3~ (SiCp), η^5^‐C~5~H~4~SnMe~3~ (SnCp) and η^5^‐C~5~H~4~SiMe~2~Cl (Si^′^Cp) and X = Cl, Br, I and OBu^t^, half‐sandwich complexes are reported. For the compounds studied, a direct linear relationship between δ(^49^Ti) and $\lambda_{\max}^{\rm 1.CT}$ was found. Copyright © 2004 John Wiley & Sons, Ltd.