A hydrofluoroolefin compound represented by the following general formula (I): where, Rh is CH═CH2 or C(CH3)═CH2; and (i) x is O; n is 1; Y is F; Rf2 is F; and Rf1 is a linear or branched fluorinated alkyl group having 1-10 carbon atoms and optionally includes one or more catenated heteroatoms selected from O, N, and S; or ({umlaut over (υ)}) x is N, n is 2, Y is F or CF3; Rf2 is F or CF3; and (a) each Rf1 is bonded to x, and is independently a linear or branched fluorinated alkyl group having 1-8 carbon atoms and optionally includes one or more catenated heteroatom selected from O, N or S; or (e) the Rf1 groups are bonded together to form a ring structure having 4 to 8 carbon atoms that optionally includes one or more catenated heteroatoms selected from O, N, or S; with the proviso that when Y═CF3, then Rf2═F.