AbstractBy in situ lithiation of the trifunctional amines H3CC(CH2NHSiMe3)3, PhC(CH2NHSiMe3)3, and HC{SiMe2NH(p‐Tolyl)}3and subsequent reaction with SnCl2the corresponding triamidostannates were obtained. These were coupled with CpM(CO)2Cl (M  Fe, Ru) to yield the M—Sn‐bonded heterobimetallics9–14of which H3CC(CH2NSiMe3)3SnFe(CO)2Cp (9) was characterized by a single‐crystal X‐ray structure analysis. Of the in situ‐generated amidostannates only [HC{SiMe2N(p‐Tolyl)}3Sn][Li(THF)3] (8) could be isolated as a uniform product and characterized analytically and