Synthesis and reactivity of a PC_carbeneP cobalt(i) complex: the missing link in the cobalt PXP pincer series (X = B, C, N).

ABSTRACT: We report the first example of a cobalt PC_carbeneP pincer complex (1) featuring a central alkylidene carbon donor accessed through the dehydration of an alcoholic POP proligand. Complex 1 shares bonding similarities with cobalt PBP and PNP pincer complexes where the donor atom engages in π-bonding with the cobalt centre, and thus completes the PXP (X = B, C, N) pincer ligand series for cobalt (for X donors that partake in M-L π-bonding). As compared to PBP and PNP pincer complexes, which are known to be good hydride and proton acceptors (respectively), complex 1 is found to be an effective hydrogen atom acceptor. Complex 1 partakes in cooperative ligand reactivity, engaging in several small molecule activations with styrene, bromine, carbon disulphide

SUBMITTER: Sung S 

PROVIDER: S-EPMC6240806 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature