Transient intermediate in the formation of an amorphous metal-organic framework.
basic_science · Level V
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- Record sourced from PubMed, PMID 38372182.
- Also identified by DOI 10.1039/d3sm01658g.
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Abstract
Amorphous metal-organic frameworks are rarely formed <i>via</i> direct synthesis. Our limited understanding of their atomic assembly in solution prevents full exploitation of their unique structural complexity. Here, we use <i>in situ</i> synchrotron X-ray absorption spectroscopy with sub-second time resolution to probe the formation of the amorphous Fe-BTC framework. Using a combination of spectral fingerprinting, linear combination analysis, and principal component analysis coupled with kinetic analyses, we reveal a multi-stage formation mechanism that, crucially, proceeds <i>via</i> the generation of a transient intermediate species.