Copyright © 2002–2009 by A. Miyoshi, Univ. Tokyo
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GPOP : Gaussian post processor

GPOP (acronym for Gaussian POst Processor) is a collection of post processing tools for Gaussian, for the estimation of thermodynamics and rate constants for gas-phase compounds and reactions.
  In order to obtain a distribution copy of the GPOP, read the two chapters, Distribution and Licensing and Download GPOP.   For the brief look at how and what GPOP does, see the chapters through Installation to Quick Start step-4.
Distribution and Licensing
Download GPOP
Installation
Quick Start step-1
Quick Start step-2
Quick Start step-3
Quick Start step-4
Revision History

Reference Manuals

Intorduction
structure of GPOP
Pre-processing
gpop1scf Preprocesses a Gaussian SCF/DFT-level frequency job output.   It extracts essential results needed by the other GPOP components and stores them in a GPOP format file.
gpop3tst Modifies a GPOP format file using information provided in a '.mod' file containing the energy, internal rotor specifications, etc.
gpop3atm Generates GPOP format file for an atomic species
gpop3mod (under construction) Forth-coming version of gpop3tst
Thermodynamics & rate constant calculation
gpop4thf Calculates thermodynamic functions
tstrate Calculates rate constants for a reaction
vtst Calculates rate constants for a barrierless reaction by VTST
prepum Creates UNIMOL RRKM input
Diagnostics and analysis
gpop5vib Generates animation files for vibrational modes (compatible with Free Wheel only)
gpop6irt Calculates reduced moment of inertia of an internal rotor
gpop6mrt Calculates reduced moments of inertia of internal rotors and possible coupling between them
introt Similar to gpop6mrt but can be used without GPOP format files