Probing the Relationship Between the Structure, Bonding, and Optoelectronic Properties of Boron Formazanate Heterocycles

Joe B. Gilroy

Department of Chemistry, University of Western Ontario, London, ON, Canada, N6A
5B7.

Over the past decade, there has been rejuvenated interest in the coordination chemistry of
formazanate ligands, which often impart unique and useful redox and optical properties to the
parent complexes.[1] Our work has focused primarily on boron difluoride formazanate dyes, which
have shown utility as light-harvesting materials, near-infrared dyes, and cell-imaging agents. More
recently, we have explored the relationship between structure, bonding, and optoelectronic
properties of boron formazanate heterocycles containing oxoborane units (1),[2] three- and four-
coordinate boron-based mono- (e.g., 2) and dications (e.g., 3),[3,4] and as redox-active end-caps for
oligoynes (e.g., 4).[5] Recent advances in this area will be presented.

REFERENCES

[1]. Gilroy, J.B.; Otten, E. Chem. Soc. Rev. 2020, 49, 85.

[2] Maar, R.R.; Hoffman, N. A.; Staroverov, V. N.; Gilroy, J.B. Chem. Eur. J. 2019, 25, 11015.

[3] Maar, R.R.; Katzman, B.D.; Boyle, P.D.; Staroverov, V.N.; Gilroy, J.B. Angew. Chem. Int. Ed.
2021, 60, 5152.

[4] Katzman, B.D.; Maar, R.R.; Cappello, D.; Sattler, M.O.; Boyle, P.D.; Staroverov, V.N.; Gilroy,
J.B. Chem. Commun. 2021, 57, 9530.

[5]. Dhindsa, J.S.; Cotterill, E.; Buguis, F.L.; Anghel, M.; Boyle, P.D.; Gilroy, J.B. Angew. Chem.
Int. Ed. 2022, 61, e202208502.