Studies on (η-cyclo-octatetraene)(η5-fluorenyl)titanium by electron spin resonance and electronic absorption spectroscopy

Abstract

The compound (η-cyclo-octatetraene)(η⁵-fluorenyl)titanium was studied by e.s.r. spectroscopy in fluid and frozen solutions and the e.s.r. parameters were accurately determined. The electronic absorption spectrum was also measured in the near-i.r. and u.v.–visible region. The correlation of these spectroscopic data with those of the previously studied η⁵-cyclopentadienyl and η⁵-indenyl analogues is coherent. The small variations are attributed to the electron-withdrawing effects of the benzo-substituents on the η⁵-C₅ ring.