Insertion Reactions of NH3 and H2O with the Ferriogermylenes ArGeFeCp(CO)2 (Ar = ArMe6 (−C6H3‑(C6H2‑2,4,6-Me3)2) or AriPr4 (−C6H3‑(C6H3‑2,6‑iPr2)2); Cp = η5‑C5H5): Structural Isomerism and Polymorphism in a Metallogermylene
journal contributionposted on 12.10.2021, 19:49 by Alice C. Phung, James C. Fettinger, Philip P. Power
The ferriogermylenes ArGeFeCp(CO)2 (Ar = −C6H3-(C6H2-2,4,6-Me3)2 (ArMe6 (1a)), Ar = −C6H3-(C6H3-2,6-iPr2)2 (AriPr4 (1b))) (Cp = η5-C5H5) react with an excess of NH3(l) to form the insertion products ArGe(NH2)(H)FeCp(CO)2 (Ar = ArMe6 (2a) or AriPr4 (2b)). Similarly, ferriogermylene 1a reacts with water to form the insertion product ArMe6Ge(OH)(H)FeCp(CO)2 (3). Unusually, crystals of 1a exist as three different polymorphs whose structures differ primarily in their Cipso–Ge–Fe bond angles. Complexes 1–3 were characterized by NMR, UV–vis, IR spectroscopy, and X-ray crystallography.