1191109-54-2Relevant academic research and scientific papers
Synthesis, structure, and reaction chemistry of samarium(ii), europium(ii), and ytterbium(ii) complexes of the unsymmetrical benzamidinate ligand [PhC(NSiMe3)(NC6H3Prl2-2,6)] -
Yao, Shuang,Chan, Hoi-Shan,Lam, Chi-Keung,Lee, Hung Kay
, p. 9936 - 9946 (2010/01/06)
Neutral mononuclear lanthanide(II) bis(amidinate) complexes [LnL 2(THF)x] [L = PhC(NSiMe3)(NC6H 3Pr′2-2,6)-; Ln = Sm, x = 2 (3); Ln = Eu, x = 2, (4); Ln = Yb, x = 1 (5)] were synthesized by the reaction of the appropriate Lnl2(THF)2 with potassium amidinate [KL] n (2). The reduction chemistry of 3-5 was also examined. The reaction of the Sm(II) and Eu(II) amidinates 3 and 4 with diphenyl dichalcogenides PhEEPh (E = Se, Te) led to the binuclear lanthanide(III) amidinate- chalcogenolatecomplexes [LnL2(μ-EPh)]2 [Ln = Sm, E = Se (6); Ln = Eu, E = Se (7); Ln = Sm, E = Te (9)], whereas reacting the Yb(II) bis(amidinate) 5 with PhSeSePh yielded the mononuclear [YbL2(SePh) (THF)] (8). The reaction of 5 with iodine led to the Yb(III) bis(amidinate) iodide complex [YbL2(I)(THF)] (10). Treatment of 3 with N,N′-dicyclohexylcarbodiimide afforded the mixed-ligand Sm(III) tris(amidinate) [SmL2{CyNC(H)NCy}] (11) (Cy = cyclohexyl). The molecular structures of complexes 2-5 and 7-11 were elucidated by X-ray diffraction analyses.
