Improved quantum yield in geometrically constrained tetraphenylethylene-based metal–organic frameworks†
Katherine J.
Stawiasz, 
ab
Toby J.
Woods,
f
Mark A.
Rodriguez,
e
Jeffrey S.
Moore
ab
and
Dorina F.
Sava Gallis
*c
ab
Toby J.
Woods,
f
Mark A.
Rodriguez,
e
Jeffrey S.
Moore
ab
and
Dorina F.
Sava Gallis
*c
Abstract
Herein, we report the synthesis of a novel, tetraphenylethylene-based ligand for metal–organic frameworks (MOFs). Incorporation of this ligand into a Zn- or Eu-based MOF increased the quantum yield (QY) by almost 2.5× compared to the linker alone. Furthermore, the choice of guest solvent impacted the QY and solvatochromatic response. These shifts are consistent with solvent dielectric constant as well as molecular polarizability.
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