Figure depicts a scatter plot of the associated ω5, which is the lowest frequency given by each DFA regardless of whether the predicted minimum is linear or bent. Clearly, no group produces a ω5 median within even 100 cm -1 of the 19 cm -1 benchmark. The medians of Groups 1-3 are (264, 289, 256) cm -1 , whereas the medians of Groups 4 and 5 backtrack to (323, 348) cm -1 .