Cc1cc(C)n(-c2ccc(Cl)c(C(=O)Nc3ccc(OC(F)(F)F)cc3)n2)n1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?