Fig. 4: Synthesis and mechanistic investigations.
From: Construction of N−E bonds via Lewis acid-promoted functionalization of chromium-dinitrogen complexes
A Synthesis of complexes 2a, 2b, 3, 4, and 8. B Molecular structure of 8 with thermal ellipsoids at 30% probability. H atoms omitted for clarity. Selected bond lengths [Å] and angles [deg] of 8: Cr1−N3 1.6902(16), N3−N4 1.289(2), N4−B1 1.618(3), N3−N4−C22 114.19(18). C Variation of vibration peaks during adding Lewis acids to 1-crypt.
