RadEn Database

The data bank RADEN is designed to accumulate published information on radiative and energy parameters of the diatomic molecules as well as to analyze it and recommend the more reliable values.

It can be used on IBM/PC compatible computers with VGA videocard working under MS-DOS / Windows.

The bank consists of two parts: Reference-Information-System (RIS) and Recommended-Data-System (RDS), operating under the control of an interactive program.

REFERENCE-INFORMATION-SYSTEM serves for compilation of experimental research and ab initio calculations of radiative and energy parameters of diatomic molecules:

RIS is made up of two databases: information and factual.

INFORMATION DATABASE includes the following information for molecular states and transitions:

Now these data are compiled for about 1700 electronic states and 1900 electronic transitions of approximately 350 diatomic molecules. The database bibliography covers above 3000 publications since 1960 up to 1994. The information database is supplemented steadily, as soon as the new publications become available.

FACTUAL DATABASE lists the numeric results from the original researches. Now it is evolved for several tens of molecular systems and transitions. As supposed, it will be filled up gradually by request of database users.


RECOMMENDED-DATA-SYSTEM serves to accumulate and calculate recommended values of radiative and energy parameters of diatomic molecules.

The system accumulates:

The system calculates: The accumulated information is kept in the factual recommended database. The calculations are performed by the application program package connected with this database.

FACTUAL RECOMMENDED DATABASE contains now the ab initio and experimental electronic transition moments for more than 250 systems belonging to more than 100 diatomic molecules that were recommended by our experts as the most reliable. Recommendations were carried out as the result of joint analysis for the data on all radiative characteristics of the corresponding molecule published up to 1993.

Spectroscopic constants (Dunham coefficients) were included into the factual recommended database from the handbooks by K.P.Huber and G.Herzberg "Molecular spectra and molecular structure. IV. Constants of diatomic molecules" (1979) and "Thermodynamic properties of individual substances" Moscow, Nauka, 1978-1980 (in Russian), or from the original reports and reviews.


Like the Reference-Information System, the Recommended-Data System operates under the control of an interactive program, which uses a system of menus to organize a user's request (the choice of a molecule and transition and the specification of the range of quantum numbers), retrieves the information required for calculations from the recommended factual data base, gives necessary warnings e.g., on predissociation, on going beyond the dissociation limit, etc.) and run programs for calculations.


All requests should be sent to Dr. L.A.Kuznetsova.
Mail address:
Chemistry Department
Moscow State University
Moscow 119899 Russia
E-mail: lakuz@laser.chem.msu.su

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