O=C(Nc1cccc(F)c1)c1cc2ccc(O)cc2o/c1=N\c1cccc(F)c1
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?