Figure shows the structure of [Hdabco]ReO 4 in a shear strained unit cell. Remarkably, only one of the two ReO 4 tetrahedra in the unit cell have rotated significantly, while both the dabco-molecules have rotated compared to the unstrained crystal structure, one of the dabco-molecules are distorted. As the rotated ReO 4 anion and the distorted molecule are in the same plane, indicating alternating layers where the structure is distorted due to shear strain. This particular result obtained for a finite strain, unlike the DFPT results, hints at onset of a slip-like mechanism and might be sensitive to the size of the unit cell used in the computation.