OC(c1c(F)c(F)c(F)c(F)c1F)(c1c(F)c(F)c(F)c(F)c1F)C(F)(F)F mol31311 0_1 [O-]C(c1c(F)c(F)c(F)c(F)c1F)(c1c(F)c(F)c(F)c(F)c1F)C(F)(F)F mol31311 -1_1