In case of Young's modulus of gis-ZIF-1, the minimum value (Emin) is 0.84 GPa, where the deformation is along c axis, and the maximum value (Emax) is 1.60 GPa, where the deformation axis is perpendicular to the c axis. Young's modulus represents the compressive elasticity, which means the compression of gis-ZIF-1 structure is preferred perpendicular to the c axis, with anisotropy about 1.89 (=Emax/Emin). Linear compressibility shows similar tendency with Young's modulus, with anisotropy about 4.10 (=βmax/βmin). These anisotropic mechanical properties are well-matched with the anisotropic thermal response and related ZIF mechanics (Figure ). Also, the minimum value of shear modulus (Gmin) is 0. -S20).