Cl.O[C@]12C=C(c3nccc4c3[nH]c3ccccc34)[C@@H]3CCN(CCCC/C=C\CC1)C[C@@]31CC3/C=C\CCCCN3[C@@H]21
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?