Iron(ii) complexes of ditopic carbanionic carbenes

Serendipitous reactions involving a silicone grease

“…Addition of a small amount of silicone grease directly to THF significantly increased the yield of 29. [28], which contains an abnormal carbene unit previously demonstrated by Bertrand [29]. It is noted that the reaction mixture including 31 was so reactive that activation of Si O bonds in silicone grease occurred to provide trinuclear iron complex 32, which was crystallized in the presence of a cryptand (Chart 10).…”

The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014

“…803) 995]. Iron bis(abnormal-NHC) complexes in low oxidation states were prepared through reduction of the analogous iron(II) complexes [996]. A computational study focused on the electronic structure of iron(II) NHC complexes was also reported [997].…”

Coordination chemistry of ditopic carbanionic N-heterocyclic carbenes

“…18) [92][93][94]. The bisditopic carbanionic carbene complexes 33 (M = Mn (33a), Fe (33b), Zn (33c) and Cd (33d)) can be isolated by multiple recrystallizations from THF/hexane.…”

“…Synthesis of transition metal complexes bearing two "abnormally" bonded ditopic carbanionic carbenes by chemical reduction of NHC complexes[92][93][94].…”