These results correlate well: the adsorption stress from different alkanes larger than methane and alkenes causes an irreversible transition into an amorphous phase but also macroscopic deformation and fragmentation of the crystals when the adsorption/desorption stress becomes too strong. This leads to a decrease in gas uptake and total pore volume. Interesting empirical observation could be derived from physisorption data, namely the adsorption of the alkene with n The observations reveal an increasing fraction of collapsed framework with increasing chain length of the probe molecule, the presence of double bonds and number of adsorption/desorption cycles. For all gases, a constant adsorption/desorption performance could be reached after the third adsorption/desorption cycle. A combination of gas physisorption, X-ray diffraction, SEM imaging and total scattering allowed to quantify the amount of the contracted sample, monitor the changes in the crystallinity, macroscopic crystal shape and confirm the local structure of crystalline and amorphized samples. The proposed technique can be used for the semi-quantitative evaluation of the mechanical stability of highly sensitive mesoporous frameworks and can be considered as an alternative to existing techniques.