Cc1cc(NC(=O)/C(C#N)=C/c2ccc(-c3cccc(C(F)(F)F)c3)o2)n(-c2ccccc2)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?