Drastically different mechanical properties from the same compound

Trimorphs of 4 bromophenyl 4 bromobenzoate. Elastic  brittle  plastic

Source: © Royal Society of Chemistry

4-bromophenyl 4-bromobenzoate can be plastic, elastic or brittle

Polymorphs of the same compound can exhibit totally different mechanical behaviour – reversible and irreversible bending – new research shows.