MOPAC thermodynamic calculation to the NASA polynomials.
Hoping this helps you. Good luck.
http://openmopac.net/manual/error_messages.html
I don't know about MOPAC, but if you're referring to the NASA Glenn property tables, you might be interested in my Excel Add-In that provides convenient access to 2035 substances. There's more free software at the second link.
http://dudleybenton.altervista.org/software/NASAGlenn100.zip
http://dudleybenton.altervista.org/software/index.htm
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