Simplifying and Expanding the Scope of Boron Imidazolate Framework (BIF) Synthesis Using Mechanochemistry

01 June 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Mechanochemistry enables rapid access to boron imidazolate frameworks (BIFs), including ultralight materials based on Li and Cu(I) nodes, as well as new and previously unexplored systems based on Ag(I) nodes. Compared to solution methods, mechanochemistry is faster, provides materials with improved porosity, and replaces harsh reactants (e.g. n-butyllithium) with simpler and safer oxides, carbonates or hydroxides. Periodic density-functional theory (DFT) calculations on polymorphic pairs of BIFs based on Li+, Cu+, and Ag+ nodes reveals that heavy-atom nodes increase the stability of the open SOD-framework relative to the non-porous dia-polymorph.


Boron imidazolate frameworks
metal-organic frameworks
green chemistry
microporous materials
zeolitic frameworks

Supplementary materials

SI ChemRxiv


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