Near infrared excitation and emission in rare earth MOFs via encapsulation of organic dyes

Abstract

Dye RE3+-MOF hybrid exhibits both NIR excitation and emission within the biological diagnostic window, highlighting its potential for biological imaging.

Synthetic Approaches for Accessing Rare-Earth Analogues of UiO-66

“…30 As such, these clusters have been used to synthesise a handful of RE-MOFs, some of them isostructural to Zr-UiO-66 with functionalised linkers. [42][43][44] However, to this date, RE-UiO-66 analogues, with non-functionalised BDC linkers, have not been reported in literature. Herein, we present the synthesis and characterization of a series of isostructural RE-UiO-66 analogues (Figure 2) prepared from the commercially available, and costeffective BDC linker.…”

Design of lanthanide-based metal–organic frameworks with enhanced near-infrared emission

“…It is worth noting that the luminescence lifetime of ~18.9 μs is among the highest values reported so far for Yb-based MOFs. 25,29,34 This result clearly illustrates that by simply doping with Y 3+ , the NIR luminescence efficiencies of Yb-based MOFs can be significantly increased.…”

Uncovering the Structural Diversity of Y(III) Naphthalene-2,6-Dicarboxylate MOFs Through Coordination Modulation

“…The resultant frameworks show considerable structural diversity and high thermal stabilities, with framework 5 presenting interesting luminescence properties in the presence of metal nitrate solutions. This technique could unlock a vast myriad of new yttrium frameworks, with this work generating six structures resulting from just one linker, and a seventh recently published using 2,6-difluorobenzoic acid as modulator (Liu et al, 2018). The combination of modulation along with alternative linkers, varying in their functionality, length, and connectivity, could lead to diverse further interesting frameworks.…”