1356935-56-2Relevant academic research and scientific papers
Synthesis and structural characterization of two-coordinate low-valent 14-group metal complexes bearing bulky bis(amido)silane ligands
Yang, Dongming,Guo, Jianmei,Wu, Haishun,Ding, Yuqiang,Zheng, Wenjun
, p. 2187 - 2194 (2012/03/22)
A series of germylene, stannylene and plumbylene complexes [η2(N,N)-Me2Si(DippN)2Ge:] (3a), [η2(N,N)-Ph2Si(DippN)2Ge:] (3b), [η2(N,N)-Me2Si(DippN)2Sn:] (4), [η2(N,N)-Me2Si(DippN)2Pb:]2 (5a), and [η2(N,N)-Ph2Si(DippN)2Pb:] (5b) (Dipp = 2,6-iPr2C6H3) bearing bulky bis(amido)silane ligands were readily prepared either by the transamination of M[N(SiMe3)2]2 (M = Sn, Pb) and [Me 2Si(DippNH)2] or by the metathesis reaction of bislithium bis(amido)silane [η1(N),η1(N)-R 2Si(DippNLi)2] (R = Me, Ph) with the corresponding metal halides GeCl2(dioxane), SnCl2, and PbCl2, respectively. Preliminary atom-transfer chemistry involving [η 2(N,N)-Me2Si(DippN)2Ge:] (3a) with oxygen yielded a dimeric oxo-bridged germanium complex [η2(N,N)-Me 2Si(DippN)2Ge(μ-O)]2 (6). All complexes were characterized by 1H, 13C, 119Sn NMR, IR, and elemental analysis. X-ray single crystal diffraction analysis revealed that the metal centres in 3b, 4, and 5b are sterically protected to prevent interaction between the metal centre and the nitrogen donors of adjacent molecules while complex 5a shows a dimeric feature with a strong intermolecular Pb...N interaction.
