OCC(F)(F)C(F)(F)C(F)(F)C(F)(F)CO mol9685 0_1 [O-]CC(F)(F)C(F)(F)C(F)(F)C(F)(F)CO mol9685 -1_1 [O-]CC(F)(F)C(F)(F)C(F)(F)C(F)(F)C[O-] mol9685 -2_1