Special Seminar - Dr. Joe B. Gilroy

Title:

Molecular and Macromolecular Materials Derived from
Boron Difluoride Formazanates

Abstract:

Boron difluoride (BF₂) complexes of N-donor ligands represent a diverse class of molecular materials that have shown utility as sensors, light-harvesting materials, and cell-imaging agents.^[1] Given their application, there is a need for the discovery of new examples that can be produced by straightforward synthetic methods from low cost starting materials. BF₂ formazanates, derived from formazans (R¹-NH-N=CR³-N=N-R⁵), are readily accessible heterocycles that exhibit tuneable absorbtion, emission, and redox properties and potentially address this need. This presentation will highlight our recent work surrounding the chemical functionalization of BF₂ formazanates en route to examples that show utility as cell-imaging agents (e.g., 1),^[2] as precursors to a range of unusual BN heterocycles (e.g., 2)^[3] and p-conjugated metallopolymers (e.g., 3),^[4] and near-IR photoluminescent dyes.^[5]

_REFERENCES

_{[1]. Frath, D.; Massue, J.; Ulrich, G.; Ziessel, R. Angew. Chem. Int. Ed. 2014, 53, 2290.}

_{[2]. Maar, R. R.; Barbon, S. M.; Sharma, N.; Groom, H.; Luyt, L. G.; Gilroy, J.B. Chem. Eur.
       J. 2015, 21, 15589.}

_{[3]. Barbon, S. M.; Staroverov, V. N.; Gilroy, J. B. Angew. Chem. Int. Ed. 2017, 56, 8173.}

_{[4]. Dhindsa, J. S.; Maar, R. R.; Barbon, S. M.; Olivia Avilés, M.; Powell, Z.K.; Lagugné-}

       _{Labarthet, F.; Gilroy, J.B. Chem. Commun. 2018, 54, 6899.}

_{[5]. Maar, R.R.; Zhang, R.; Stephens, D.G.; Ding, Z.; Gilroy, J. B. Angew. Chem. Int. Ed. 2019,
      58, In Press.}