Reactivity of yttrium carboxylates toward alkylaluminum hydrides.
Reactivity of yttrium carboxylates toward alkylaluminum hydrides.
复制标题
羧酸钇对烷基铝氢化物的反应性
DOI:
10.1002/chem.201302944
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
R. Anwander
中科院分区:
文献类型:
--
作者:
C. Schädle;A. Fischbach;E. Herdtweck;K. W. Törnroos;R. Anwander
Yttrocene‐carboxylate complex [Cp*2Y(OOCArMe)] (Cp*=C5Me5, ArMe=C6H2Me3‐2,4,6) was synthesized as a spectroscopically versatile model system for investigating the reactivity of alkylaluminum hydrides towards rare‐earth‐metal carboxylates. Equimolar reactions with bis‐neosilylaluminum hydride and dimethylaluminum hydride gave adduct complexes of the general formula [Cp*2Y(μ‐OOCArMe)(μ‐H)AlR2] (R=CH2SiMe3, Me). The use of an excess of the respective aluminum hydride led to the formation of product mixtures, from which the yttrium‐aluminum‐hydride complex [{Cp*2Y(μ‐H)AlMe2(μ‐H)AlMe2(μ‐CH3)}2] could be isolated, which features a 12‐membered‐ring structure. The adduct complexes [Cp*2Y(μ‐OOCArMe)(μ‐H)AlR2] display identical1J(Y,H) coupling constants of 24.5 Hz for the bridging hydrido ligands and similar89Y NMR shifts ofδ=−88.1 ppm (R=CH2SiMe3) andδ=−86.3 ppm (R=Me) in the89Y DEPT45 NMR experiments.
登录
查看更多内容
影响因子:
2.8
作者:
DENHAAN, KH;DEBOER, JL;HUIS, R
通讯作者:
HUIS, R
影响因子:
4
作者:
Nifant'ev, Ilya E.;Tavtorkin, Alexander N.;Churakov, Andrei V.
通讯作者:
Churakov, Andrei V.
影响因子:
2.8
作者:
BUSCH, MA;HARLOW, R;WATSON, PL
通讯作者:
WATSON, PL
影响因子:
2.3
作者:
H. Schumann;Kerstin Zietzke;Frank Erbstein;Roman Weimann
通讯作者:
Roman Weimann
影响因子:
2.8
作者:
W. Evans;Timothy M. Champagne;Dimitri Giarikos;J. Ziller
通讯作者:
W. Evans;Timothy M. Champagne;Dimitri Giarikos;J. Ziller