Achieving a blue-excitable yellow-emitting Ca-LMOF phosphor via water induced phase transformation.

ABSTRACT: Luminescent metal-organic frameworks (LMOFs) with diverse structural features and promising fluorescence-based applications have attracted wide attention in the past two decades. In this work, a LMOF with the formula [Ca₄(tcbpe-F)₂(H₂O)₃] (1, LMOF-411) has been constructed from calcium (Ca) and 1,1,2,2-tetrakis(4-(4-carboxyphenyl)phenyl)ethene (H₄tcbpe-F). Compound 1 features a three-dimensional framework with a 10-nodal net topology. Due to the relatively high hydration energy of Ca²⁺, compound 1 readily transforms into a new phase formulated as [Ca(H₂tcbpe-F)(H₂O)₂] (1') upon exposure to water. Combining experimental characterization and theoretical calculations, we elucidated the mechanism

SUBMITTER: Wu ZF 

PROVIDER: S-EPMC8809393 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature