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A C^N Cycloplatinated(II) Fluorido Complex: Photophysical Studies and Csp3‒F Bond Formation

preprint
submitted on 03.08.2020 and posted on 06.08.2020 by Jiyun Hu, Mahshid Nikravesh, Hamid R. Shahsavari, Reza Babadi Aghakhanpour, Arnold L. Rheingold, Mia Alshami, Yoshie Sakamaki, Hassan Beyzavi
This work reports the synthesis and characterization of a new C^N-based cycloplatinated(II) fluorido complex [Pt(ppy)PPh3)F] involving a Pt‒F bond. The new complex is highly luminescent in green area with a high quantum yield of 94.6% at 77K. A comparison study of the heavier of halogen derivatives reveals a descending emission quantum yield order of F > Cl > Br > I. Time-dependent density functional theory (TD-DFT) calculations ascribe the decreased emission efficiency to the decreasing trend of ILCT transition from F to I, which accounts for the major radiative pathway.

History

Email Address of Submitting Author

beyzavi@uark.edu

Institution

University of Arkansas

Country

United States

ORCID For Submitting Author

0000-0002-6415-8996

Declaration of Conflict of Interest

No conflict of interest.

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