Cc1ccc(C)n1CCN1CCN(CC(=O)Nc2cc(C(F)(F)F)ccc2Cl)CC1
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?