O=C(O)CN(CC(=O)O)Cc1cc(C#Cc2ccc(C#Cc3ccccc3)cc2)cc(CN(CC(=O)O)CC(=O)O)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?