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

preprint
submitted on 03.08.2020, 23:16 and posted on 06.08.2020, 08:25 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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