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Guest release from coordination assemblies in the solid state
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DOI：10.1016/j.chempr.2024.01.023.png)
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Abstract
En 中文
Guest -release reactions are ubiquitous in natural systems. However, analogous guest release in synthetic molecular systems often results in potentially irreversible host -guest reactions, limiting materials' reusability. Herein, we report a conceptually different guest -release strategy, facilitated by mechanical -force -induced coordinationbond cleavage by ball milling with a mixer mill. This solid-state method can be applied to a broad range of coordination complexes, including cages, capsules, and even MOFs. As opposed to conventional host -guest chemistry in solution, this force -induced approach is not dictated by host -guest affinity; therefore, even strong binding guests that are difficult to liberate by conventional means can be promoted. We further demonstrated a synthetic guest-release/uptake cycle solely driven by mechanical force, and we believe that this reversible force -triggered behavior is expected to find broad applications in controlled -release and stimuli -responsive materials in the solid state.
Keywords:
X-RAY-ANALYSIS
DIELS-ALDER
MECHANOCHEMICAL SYNTHESIS
SOLVENT-FREE
BINDING
STABILIZATION
OPPORTUNITIES
AGGREGATION
RECOGNITION
FULLERENES
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19.6
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2.8K
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