A reaction of dialkylalumanylpotassium with Ti(OⁱPr)₄ was investigated. The alumanyl anion worked as a reducing reagent to afford the trivalent titanium complex as a contact ion pair with aluminate anion probably via single-electron transfer. The ESR spectrum revealed the delocalization of an unpaired electron over Ti and Al atoms. The DFT calculations provided information about the ratio of unpaired electrons on Ti and Al atoms and the UV–vis absorption spectrum.

中文翻译：

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二烷基铝（I）阴离子单电子还原Ti（IV）络合物，生成Ti（III）物种

研究了二烷基铝烷基钾与Ti（O ⁱ Pr）_4的反应。铝基阴离子用作还原剂，可能通过单电子转移将三价钛络合物作为与铝酸盐阴离子的接触离子对。ESR光谱显示未配对电子在Ti和Al原子上的离域。DFT计算提供了有关Ti和Al原子上不成对电子的比率以及UV-vis吸收光谱的信息。