Two titanium-oxo clusters, [Ti3O(OPri)7(O3C9H15)] 1 and [Ti11O13(OPri)18] 2, have been obtained through the reactions of Ti(OPri)4 with ketones such as acetone, acetylacetone and diacetone alcohol. Complex 1 is composed of a trinuclear unit that is capped by a tridentate enolate ligand synthesized insitu. Complex 2 is a more condensed titanium cluster with a spherical oxo core. The titanium-oxo-organo cores of these clusters are preserved in solution as characterized by 17O, 13C, and 1H NMR spectroscopy. The possible different reactions involved in the formation of these clusters are discussed.
通过 Ti(OPri)4与
丙酮、
丙酮和双
丙酮醇等
酮类化合物的反应,获得了两个
钛氧簇合物,即[Ti3O(OPri)7(O3C9H15)] 1 和[Ti11O13(OPri)18] 2。络合物 1 由一个三核单元组成,该单元由一个原位合成的三叉烯醇
配体封端。配合物 2 是一个具有球形氧化物核心的更加凝聚的
钛簇。通过 17O、13C 和 1H NMR 光谱分析,这些簇合物的
钛氧有机核心在溶液中得以保留。本文讨论了形成这些团簇可能涉及的不同反应。