Jm. Smith et al., Tuning metal coordination number by ancillary ligand steric effects: synthesis of a three-coordinate iron(II) complex, CHEM COMMUN, (17), 2001, pp. 1542-1543
The coordination number of the metal in iron(II) beta -diketiminate complex
es can be tuned through the size of the alkyl substituents on the ligand ba
ckbone.