“…Examples include 1,8‐diphenyl‐3,6‐dimethyl‐carbazolyl‐dimethylalane, [18] 1,8‐dimesityl‐3,6‐di‐tert‐butyl‐carbazolyl‐magnesiumiodide [19] and 1,8‐dimesityl‐3,6‐dimethyl‐carbazolyl‐dichlorogallane [20] . By employing the 1,8‐bis(3,5‐di‐tert‐butyl‐phenyl)‐3,6‐di‐tert‐butyl‐carbazolyl system (R), our group recently reported on the generation of formally one‐coordinate tetrylenylium cations [RE] + (E=Si, Ge, Sn, Pb) [21,22] and the attempted reduction of a carbazolyl‐diiodoalane [23] . Featuring this carbazole scaffold R, we now describe the synthesis and properties of two series of compounds, RSi(X) 2 H and RSi(X) 2 All (X=Cl, N 3 , NCO, NCS, NH 2 , All=CH 2 CHCH 2 ).…”