Scheme 3. (A) Reactivity of Aryl-CoIII (1-OAc) with Organic Azide (b) at 100 °C and (B) Crystal Structure of 4b-OAc Complex.
NMR yield of P-b is based on 4b-OAc.
Selected bond distances for [Å] and angles [deg]: C(12)–N(20) 1.439(5), N(20)–Co(1) 2.176(4), C(12)–N(20)–Co(1) 109.7(2), Co(1)–N(18) 2.127(4), Co(1)–N(9) 2.259(4), Co(1)–N(2) 2.255(4), Co(1)–O(33) 2.075(3), Co(1)–O(29) 2.056(3). Hydrogen atoms and solvent molecules have been omitted for clarity. NH(L) refers to the coordination of the Co(II) center to another ligand moiety (depicted as N9 in the crystal structure).
