Dias HVR, Diyabalanage HVK, Ghimire MM, Hudson JM, Parasar D, Palehepitiya Gamage CS, Li S, Omary MA. Brightly phosphorescent tetranuclear copper(i) pyrazolates.
Dalton Trans 2019;
48:14979-14983. [PMID:
31580351 DOI:
10.1039/c9dt03402a]
[Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described herein is the synthesis and photophysics of two tetranuclear copper complexes, {[3,5-(Pri)2,4-(Br)Pz]Cu}4 and {[3-(CF3),5-(But)Pz]Cu}4 tailor-designed by manipulating the pyrazolyl ring substituents. Unlike their trinuclear analogues, the luminescence of the tetranuclear species is molecular (not supramolecular) in nature with extremely high solid-state quantum yields of ∼80% at room temperature.
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