1416664-76-0Relevant academic research and scientific papers
Utilizing steric bulk to stabilize molybdenum aminogermylyne and aminogermylene complexes
Hicks, Jamie,Hadlington, Terrance J.,Schenk, Christian,Li, Jiaye,Jones, Cameron
, p. 323 - 329 (2013/03/13)
Two extremely bulky bis(aryl)amines, HN(Ar*)(Ph) (HLPh) and HN(Ar*)(Mes) (HLMes) (Ar* = C6H 2{C(H)Ph2}2Me-2,6,4; Mes = mesityl), have been prepared by palladium-catalyzed cross-coupling reactions and structurally characterized. These have been utilized in the preparation of the amido-germanium(II) chlorides, [LPhGeCl] and [LMesGeCl]. Reactions of these, and the known complex, [L′GeCl] (L′ =-N(Ar*)(SiMe3)), with Na[CpMo(CO)3] have afforded the first examples of structurally characterized two-coordinate molybdenum substituted germylenes, [Cp(CO)3MoGeN(Ar*)(R)] (R = SiMe 3 or Ph). The former readily eliminates a molecule of CO when heated or irradiated with UV light to give an unprecedented amino-germylyne complex, [Cp(CO)2Moi-≡GeN(Ar*)(SiMe3)]. The spectroscopic and structural data for this complex, in combination with the results of computational studies, show that this compound is best viewed as having a bent Mo-Ge triple bond, with little multiple bond character to its Ge-N interaction. Computational studies have also indicated that the Mo-Ge-N bending in the complex is due to the extreme steric bulk of its amido substituent.
