Investigations into the Coordination Chemistry of 1,3-Bis(2’-benzimidazolylimino)isoindoline
Year: 2013
Type: article
Abstract: The N,N,N-tridentate ligand, 1,3-bis(2'-benzimidazolylimino)isoindoline (1) is derived from the reaction of diiminoisoindoline (DII) with 2-aminobenzimidazole and readily binds metal ions.We synthesized several metal complexes of 1 including iron (2), nickel (3), cobalt (4), copper (5) and zinc (6) and were able to structurally characterize all of them as well as free base 1 via single crystal X-ray diffraction methods.Only compounds with a 1:1 metal:ligand stoichiometry were observed, possibly due to the steric bulk of the benzimidazole ligand arms.Ligand 1 binds more tightly than the similar BPI ligand, exhibiting more uniform M-N bond lengths.All compounds exhibit hydrogen bonding via the external N-H group of the benzimidazolyl units, including many cases of extensive hydrogen bond network formation in the solid state.
Source: Macroheterocycles
DOI: 10.6060/mhc131265z
Institution: University of Akron
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W1972666379