Organophosphorous and -arsenic compounds in unusual bonding situations for Organic Electronics

Our project

We explore the use of molecular main group compounds as novel building blocks for applications in organic electronics, such as thin film transistors (TFTs), organic field effect transistors (OFETs), or organic light emitting diodes (OLEDs), or electrochromic materials.

Phosphorus based systems such as phosphaalkenes and phospholes have recently attracted considerable attention as conductive materials or in lightning applications. Through collaborations with S. Spirk and Z. Zhang we investigated the use of Phosphorus-based building blocks as novel components in organic electronic devices. Recently, we have also explored low valent arsenic compounds in pi-conjugated polymers.

References

• Morales Salazar, D.; Mijangos, E.; Pullen, S.; Gao, M.; Orthaber, A. Functional small-molecules & polymers containing P=C and As=C bonds as hybrid p-conjugated materials. Chem. Comm. 2017, DOI: 10.1039/C6CC08736A link
• Shameem, M. A.; Esfandiarfard, K.; Öberg, E.; Ott, S.; Orthaber, A. Direct, Sequential, and Stereoselective Alkynylation of C,C-Dibromophosphaalkenes. Chem. Eur. J. 2016, 22 (30), 10614-10619. link
• Morales Salazar, D.; Gupta, A. K.; Orthaber, A., Reactivity studies of an imine-functionalised phosphaalkene; unusual electrostatic and supramolecular stabilisation of a [sigma]2[small lambda]3-phosphorus motif via hydrogen bonding. Dalton Trans. 2018, 47 (31), 10404-10409. link

• Review: Shameem, M. A.; Orthaber, A. Organophosphorus Compounds in Organic Electronics. Chem. Eur. J. 2016, 22 (31), 10718-10735 link