Octakis(tert-butoxo)dicerium(IV) [Ce2(OtBu)8]: Synthesis, Characterization, Decomposition, and Reactivity
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- 作者：Johannes Schl盲fer ; Wieland Tyrra ; Sanjay Mathur
- 刊名：Inorganic Chemistry
- 出版年：2014
- 出版时间：March 17, 2014
- 年：2014
- 卷：53
- 期：6
- 页码：2751-2753
- 全文大小：204K
- 年卷期：v.53,no.6(March 17, 2014)
- ISSN：1520-510X
文摘
An advanced synthesis for the homometallic derivative [Ce2(OtBu)8] (1) starting from [Ce(OtBu)2{N(SiMe3)2}2] was developed. Structural characterization of a cerium(IV) complex and its decomposition products confirmed the coexistence of both ether elimination and Ce鈥揙 bond cleavage processes, which lead to the formation of [Ce3O(OtBu)10] and [Ce3(OtBu)11] (2) derivatives, respectively. Variable-temperature NMR spectroscopy under strict exclusion of moisture enabled insight into the decomposition processes in noncoordinating solvents and at elevated temperature. In addition, structural analysis of the heterovalent 2 and of two new complexes of the general formula [Ce2(OtBu)8(L)] [L = HOtBu (3), OCPh2 (4)] is described.