Derivatized phenylbenzothiazole cyclometalating ligands for reverse saturable absorption materials development

Victor A. Jaffett; Ryan M. O'Donnell; Thomas N. Rohrabaugh Jr.; Jack M. Harrison; Nanki Verma; Chi K. Nguyen; William M. Shensky III

doi:10.1117/12.2611252

7 March 2022 Derivatized phenylbenzothiazole cyclometalating ligands for reverse saturable absorption materials development

Victor A. Jaffett, Ryan M. O'Donnell, Thomas N. Rohrabaugh Jr., Jack M. Harrison, Nanki Verma, Chi K. Nguyen, William M. Shensky III

Author Affiliations +

Proceedings Volume 11998, Organic Photonic Materials and Devices XXIV; 1199804 (2022) https://doi.org/10.1117/12.2611252
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Transition metal complexes have seen increased application in the fields of photoredox catalysis, photodynamic therapy, biological sensing, and as phosphors for organic light-emitting diodes. Additionally, non-linear optical applications of these materials have increased due to recent reports of two photon absorption and reverse saturable absorption (RSA) characteristics. Recent studies have demonstrated iridium is of particular interest as the transition metal center for organometallic chromophores because of its strong spin-orbit coupling, which allows for multiple excited states, thereby increasing the compound’s ability to absorb light over a broad spectrum. Our work focused on the synthesis of a series of functionalized phenylbenzothiazole (pbt) ligands to explore the effects on the photophysical properties of the synthesized Ir(III) cyclometalated chromophores and evaluate their potential application as RSA materials. The Ir(III) cyclometalated complexes were prepared from the bromo substituted pbt. The intermediate was then subjected to microwave assisted Suzuki reaction conditions to form the derivatized pbt cyclometalated complex.

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Victor A. Jaffett, Ryan M. O'Donnell, Thomas N. Rohrabaugh Jr., Jack M. Harrison, Nanki Verma, Chi K. Nguyen, and William M. Shensky III "Derivatized phenylbenzothiazole cyclometalating ligands for reverse saturable absorption materials development", Proc. SPIE 11998, Organic Photonic Materials and Devices XXIV, 1199804 (7 March 2022); https://doi.org/10.1117/12.2611252

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