VEDA Chemistry software and Laboratory for Spectroscopy, Molecular Modeling and Structure Determination .VEDA open source spectroscopy software is a computer program optimizes the set of internal coordinates to elucidate the IR and Raman experimental/theoretical spectra. As a result, the theoretical normal modes are represented by internal coordinates giving users a more intuitive view of the molecular movements. Each of the internal coordinates is expressed as a superposition of several local modes of two, three, or four atoms connected by bonds for stretching, bending, or torsional and out-of-plane local modes, respectively.
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