Sensitized photon upconversion in anthracene-based zirconium metal–organic frameworks. Issue 56 (27th June 2018)

• Record Type: Journal Article
• Authors: Rowe, Jennifer M.; Zhu, Jie; Soderstrom, Erin M.; Xu, Wenqian; Yakovenko, Andrey; Morris, Amanda J.
• Is Part Of: Chemical communications. Volume 54:Issue 56(2018)
• Page Start: 7798
• Page End: 7801
• Publication Date: 2018-06-27
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc01893f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A systematic investigation of chromophore spacing on sensitized photon upconversion observed for the first time in zirconium-based anthracenic metal–organic frameworks. Abstract : Sensitized upconversion is explored in three metal–organic frameworks (MOFs) constructed from the anthracene dicarboxylate (ADC) derivatives and zirconium nodes, 9, 10-ADC (9, 10-MOF), 2, 6-ADC (2, 6-MOF) and 1, 4-ADC (1, 4-MOF). Selective excitation of surface-bound Pd(ii ) mesoporphyrin IX (PdMP) gives rise to delayed fluorescence ( τ = 370 ± 30 ns) from anthracene in the 9, 10-MOF. The overall upconversion efficiency of the Pd@9, 10-MOF is 0.46 ± 0.05% with a threshold intensity of 104 ± 26 mW cm −2 .