Showing structure for COC1=CC(C2=[O+]C3=CC(O[Si](C)(C)C(C)(C)C)=CC4=C3C(=C2O[Si](C)(C)C(C)(C)C)C=C(C2=CC=C(O)C=C2)O4)=CC(OC)=C1O[Si](C)(C)C(C)(C)C