SpecView
A second-generation program called SpecView provides for the
simulation and fitting of the rotational structure of electronic and
vibronic bands. The application is written in Visual C++ and features
MFC classes. A user-friendly environment allows for most spectra
manipulation to be done with mouse moves and clicks. SpecView utilizes
a DLL library previously created in our lab, which contains a large
number of molecular Hamiltonians appropriate for the calculation of
the energy levels of various molecules in different electronic
states. The program generates spectra for up to 106
transitions and has succesfully simulated rotational spectra with J's
up to 200. A number of tools allow one to import experimental data,
compare data to simulations and provides intelligent assignment of
spectral lines. For fitting, a well-known Levenberg-Marquardt's
non-linear least square procedure is used. It is noticed that when
fitting molecular constants that appear only in non-diagonal matrix
elements, using numerical calculations of the derivatives causes the
convergence process to be more stable than when analytical derivatives
used. The program has an intuitive environment and can be used for
educational and demonstrational purposes since all molecular constants
can be varied dynamically with spectra changes reflected immediately
in application's window.
SpecView is presently in beta-test release.
SpecVi38a.exe is a self-installing file. When it is downloaded and run
on your local machine, it will produce a directory (unless told
otherwise) C:\program files\OSU\specview\ which contains 3 folders:
program, help and example. The program folder contains the executable
SpecView program. The help folder contains a manual in 3 formats:
Word, html, and pdf. The example folder contains the source code for
the various spectral models available in this release.
The SpecView program has been written by Vadim L. Stakhursky and has
been extensively alpha-tested by Chris Carter and Sandhya
Gopalakrishnan, all members of the research group of Terry A. Miller
in the Spectroscopy Institute of the Ohio State University.
For any questions regarding this program please email Vadim at:
vstakhur@chemistry.ohio-state.edu
For latest news and updates regarding this program please check
SpecView Latest Updates