Showing structure for C[Si](C)(C)OC1=CC(O[Si](C)(C)C)=C2C=C(O[Si](C)(C)C)C(C3=CC(O[Si](C)(C)C)=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C3)=[O+]C2=C1