Angus, PatriciaJackson, William Gregory2015-12-132015-12-130020-1693http://hdl.handle.net/1885/76368The cyclic secondary amide 2-pyrrolidinone has been coordinated to the pentaamminecobalt(III) moiety to afford both O- and N-bonded linkage isomers. A deprotonated N-bonded form has also been isolated. In non-coordinating solvents the N-form rearranges to its O-bonded isomer, and in coordinating solvents some solvolysis competes with this, but much less so than for the primary amide ligand systems investigated previously. The O-bonded product ultimately loses the amide ligand completely in water, DMSO or aqueous base; there is no detectable C-N cleavage.Keywords: 2 pyrrolidinone; amide; base; cobalt derivative; dimethyl sulfoxide; nitrogen; oxygen; water; article; carbon nuclear magnetic resonance; isomer; oxygen affinity; proton nuclear magnetic resonance; reaction analysis 2-Pyrrolidinone; Amides; Linkage isomers; Rearrangement200310.1016/S0020-1693(02)01216-12015-12-11