Titanocene dichloride route to a tetranuclear oxo-bridged monocyclopentadienyl titanium(iv) calix[4]arene complex

Abstract

Lithiation of p-^tBu-calix[4]arene followed by reaction with titanocene dichloride affords a novel tetranuclear titanium(IV) monocyclopentadienyl complex, wherein a single calix[4]arene in a cone conformation provides O-phenoxy coordination to four titanium atoms, with additional μ-oxo bridging between titanium centres in an eight membered ring.