I’m using Gaussian 09. I want to calculate proton affinity, gas phase basicity of aromatic compounds like hydroquinone (C6H6O2). I've attached here the log file for neutral and protonated hydroquinone.
I’m also interested in calculation entropy ∆S of a system like reaction between hydroquinone and methanol to produce protonated hydroquinone. Please help me in details, because I’m very new in theoretical chemistry field.