(Iminophosphoranyl)(thiophosphoranyl)methanide {CH(PPh2NSiMe3)(Ph2PS)}鈭?/sup> as a Ligand in Rare-Earth-Element Chemistry
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- 作者：Balasubramanian Murugesapandian ; Magdalena Kuzdrowska ; Michael T. Gamer ; Larissa Hartenstein ; Peter W. Roesky
- 刊名：Organometallics
- 出版年：2013
- 出版时间：March 11, 2013
- 年：2013
- 卷：32
- 期：5
- 页码：1500-1506
- 全文大小：335K
- 年卷期：v.32,no.5(March 11, 2013)
- ISSN：1520-6041
文摘
The (iminophosphoranyl)(thiophosphoranyl)methanide {CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}鈭?/sup> has been introduced as a ligand into the chemistry of yttrium and the lanthanides. First, the bimetallic potassium reagent [K{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}]2 was synthesized by deprotonation of [CH2(PPh2鈺怤SiMe3)(PPh2鈺怱)] with KH. [K{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}]2 forms a dimeric structure in the solid state. The potassium atoms are bridged by the sulfur atom of the ligand. Moreover, an 畏6 coordination of one phenyl ring is observed. The salt metathesis of [K{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}]2 with LnCl3 led to the dichloro complexes [{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}LnCl2(THF)] (Ln = Dy, Er). The bis(amido) compounds [{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}Ln{N(SiHMe2)2}2] (Ln = Y, Sm, Er, Lu) were obtained by amine elimination from [CH2(PPh2鈺怤SiMe3)(PPh2鈺怱)] and [Ln{N(SiHMe2)2}3(THF)2]. The amido complex [{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}Er{N(SiHMe2)2}2] could also be accessed by the reaction of [{CH(PPh2鈺怤SiMe3)(PPh2鈺怱)}ErCl2(THF)] with KN(SiHMe2)2.