194093-15-7Relevant academic research and scientific papers
Variation of bonding modes in homoleptic tin(II) 1-azaallyls
Hitchcock, Peter B.,Hu, Jin,Lappert, Michael F.,Layh, Marcus,Severn, John
, p. 1189 - 1190 (1997)
The homoleptic tin(II) compounds Sn[N(R)C(But)-C(H)C6H3Me2-2,5] 20 1, Sn[N(R)C(But)C(H)R]2 2 and R2CC(Ph)N(R)Sn[N(R)C(Ph)CR2] 3 (R = SiMe3) are p
Synthesis and structures of tin(II) and lead(II) 1-aza-allyls; the [N(SiMe3)C(Ph)C(SiMe3)2]- ligand
Hitchcock, Peter B.,Lappert, Michael F.,Layh, Marcus
, p. 181 - 190 (2008/10/08)
The new lithium 1-aza-allyl Li[N(R)C(Ph)CR2](THF) (1) (Li(LL″)(THF)) has been prepared in high yield from LiCR3(THF)2 and benzonitrile (R=SiMe3; THF=tetrahydrofuran). From 1 and MCl2, the stable 1-aza-allyls [M(μ-Cl)(LL″)] (2 (M=Sn); 3 (M=Pb)) and M(LL″)2 (4 (M=Sn); 5 (M=Pb)) were obtained. Each of the compounds 1-5 was fully characterised by multinuclear NMR spectroscopy (the compounds are fluxional in solution), mass spectrometry and for 3, 4 and 5 single crystal X-ray diffraction. Crystalline 3 is a centrosymmetric dimer having terminal η3-1-aza-allyl ligands with one bridging Cl- strongly bonding, Pb-Cl=2.609(3) A, and the other much less so, Pb...Cl=3.276(3) A. Crystalline 4 and 5 are mononuclear (η3-1-aza-allyl)metal(II) enamides, M[N(R)C(Ph)CR2][N(R)C(Ph):CR2]. Also reported are the synthesis and NMR spectra of PbCl[N(R)C(But)CHR] (6).
