Determine whether breathing frameworks exhibit distinct structure variation across deposits

Determine whether breathing frameworks exhibit a different pattern of pore-limiting-diameter variation between multiple crystallographic deposits of the same material, as cannot currently be established because comparable data exist for only one breathing material.

Background

The paper examines whether static structural descriptors can distinguish gate-opening from breathing frameworks. For gate-opening materials with multiple deposited structures of the same compound, the pore-limiting diameter varies only modestly, with a median difference of 0.31 Å and a maximum difference of 1.2 Å. This suggests that the linked structures generally represent small structural variations rather than large framework changes.

Comparable evidence is available for only one breathing material. Consequently, the paper leaves unresolved whether breathing frameworks display the same modest deposit-to-deposit structural variation or follow a different pattern. Establishing this would help determine whether the structural behavior observed for gate-opening materials generalizes to breathing frameworks.