Jump to main content
Jump to site search

Issue 31, 2017
Previous Article Next Article

Long-lasting phosphorescence with a tunable color in a Mn2+-doped anionic metal–organic framework

Author affiliations

Abstract

Luminescent metal–organic frameworks (MOFs) have received much attention due to their structural tunability and broad range of light-emitting applications. The fluorescence emission of such inorganic–organic hybrids can be significantly tuned by the encapsulation of guest species such as cations, anions, vapors, and dyes. In contrast, the phosphorescence tunability for MOFs has rarely been reported. In this study, an anionic MOF [CdLi(IPA)2](Me2NH2) (IPA = isophthalic acid, Me2NH2 = dimethylamine), denoted as AMOF-1, was prepared via a solvothermal method. The as-synthesized MOF exhibited green long-lasting phosphorescence (LLP). The single-crystal structural analysis revealed that the AMOF-1 channels were lined with the π-electron-rich phenyl rings of IPA and were occupied by exchangeable (Me2NH2)+ guest cations. Based on a facile cation exchange with Mn2+ at different concentrations, the LLP performance of AMOF-1 could be further adjusted across an unusually wide range from blue to violet, white, yellow, orange and red. Furthermore, the reversible changes in the LLP emission indicated that AMOF-1 could also serve as a Cu2+-responsive “on–off” phosphorescent switch. Therefore, this study not only provides a facile way to develop a new type of multi-color LLP materials, but also a strategy to obtain a cation-responsive sensor based on an anionic MOF.

Graphical abstract: Long-lasting phosphorescence with a tunable color in a Mn2+-doped anionic metal–organic framework

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Jun 2017, accepted on 13 Jul 2017 and first published on 14 Jul 2017


Article type: Paper
DOI: 10.1039/C7TC02493B
Citation: J. Mater. Chem. C, 2017,5, 7898-7903
  •   Request permissions

    Long-lasting phosphorescence with a tunable color in a Mn2+-doped anionic metal–organic framework

    X. Yang and D. Yan, J. Mater. Chem. C, 2017, 5, 7898
    DOI: 10.1039/C7TC02493B

Search articles by author

Spotlight

Advertisements