Shear Stress Effect on Thin Films of Platinum Complex Pt(dpg)2 and Chromic Compounds

We have studied the effect of shear stress on thin films of Pt(dpg)2 and chromic compounds, spiropyrans, by using the sapphire-anvil cell. From Raman spectra under hydrostatic pressure and shear deformation, the shear stress effect on Pt(dpg)2 was quantitatively estimated Then, it was observed that the color of spiropyran (1',3'-dihydro- ',3;3'-trimethyl-6-nitro-spiro PH-1-benzopyrail-2,2'42Hfindolel) was changed by shear stress.