Diverse Reactivity of ECp* (E = Al, Ga) toward Low-Coordinate Transition Metal Amides [TM(N(SiMe3)2)2] (TM = Fe, Co, Zn): Insertion, Cp* Transfer, and Orthometalation.
Diverse Reactivity of ECp* (E = Al, Ga) toward Low-Coordinate Transition Metal Amides [TM(N(SiMe3)2)2] (TM = Fe, Co, Zn): Insertion, Cp* Transfer, and Orthometalation.
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ECp* (E = Al, Ga) 对低配位过渡金属酰胺 [TM(N(SiMe3)2)2] (TM = Fe, Co, Zn) 的多种反应性:插入、Cp* 转移和邻位金属化
DOI:
10.1021/acs.inorgchem.6b03127
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发表时间:
2017
影响因子:
4.6
通讯作者:
R. A. Fischer
中科院分区:
文献类型:
--
作者:
J. Weßing;C. Göbel;B. Weber;C. Gemel;R. A. Fischer
The reactivity of the carbenoid group 13 metal ligands ECp* (E = Al, Ga) toward low valent transition metal complexes [TM(btsa)2] (TM = Fe, Co, Zn; btsa = bis(trimethylsilyl)amide) was investigated, revealing entirely different reaction patterns for E = Al and Ga. Treatment of [Co(btsa)2] with AlCp* yields [Cp*Co(μ-H)(Al(κ2-(CH2SiMe2)NSiMe3)(btsa))] (1) featuring an unusual heterometallic bicyclic structure that results from the insertion of AlCp* into the TM–N bond with concomitant ligand rearrangement including C−H activation at one amide ligand. For [Fe(btsa)2], complete ligand exchange gives FeCp*2, irrespective of the employed stoichiometric ratio of the reactants. In contrast, treatment of [TM(btsa)2] (TM = Fe, Co) with GaCp* forms the 1:1 and 1:2 adducts [(GaCp*)Co(btsa)2] (2) and [(GaCp*)2Fe(btsa)2] (3), respectively. The tendency of AlCp* to undergo Cp* transfer to the TM center appears to be dependent on the nature of the TM center: For [Zn(btsa)2], no Cp* transfer is observed on reaction with AlCp*; instead, the insertion product [Zn(Al(η2-Cp*)(btsa))2] (4) is formed. In the reaction of [Co(btsa)2] with the trivalent [Cp*AlH2], transfer of the amide ligands without further ligand rearrangement is observed, leading to [Co(μ-H)4(Al(η2-Cp*)(btsa))2] (5).
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影响因子:
15
作者:
D. Freyberg;J. Robbins;K. Raymond;J. C. Smart
通讯作者:
J. C. Smart
影响因子:
4.9
作者:
Ganesamoorthy, Chelladurai;Loerke, Sinah;Fischer, Roland A.
通讯作者:
Fischer, Roland A.
影响因子:
4
作者:
Bollermann, Timo;Puls, Arik;Fischer, Roland A.
通讯作者:
Fischer, Roland A.
影响因子:
2.3
作者:
M. Cokoja;T. Steinke;C. Gemel;T. Welzel;M. Winter;K. Merz;R. Fischer
通讯作者:
R. Fischer
DOI:
10.1039/dt9820000313
发表时间:
1982
期刊:
Journal of The Chemical Society-dalton Transactions
影响因子:
--
作者:
Moira A. Laffey;P. Thornton
通讯作者:
P. Thornton