Features

Currently the customer's version of this database contains over 29,800 bibliographic entries for 8,700 compounds (including 5,900 numerical datasets for internuclear distances and bond angles), which gives a complete coverage of publications for

• electron diffraction since 1930,
• microwave spectroscopy since 1945, and
• molecular radioastronomy since 1960.

Publication Frequencies in MOGADOC.

MOGADOC even deals with the literature which is not covered by general databases (CA Online, INSPEC, etc.). This specialized in-house database informs about structural, dynamic, electric and magnetic properties of

• inorganic,
• organic and
• organometallic

Extensive efforts are being made to include numeric structural data which, up to now, allows the user to search and display over 5,900 numeric entries that include interatomic distances, bond angles and dihedral angles. The bibliographic information includes keywords characterizing the contents of the article which makes it possible to select the publications of interest very conveniently.

The MOGADOC database consists of two files: the MGDLIT and the MGDCOM file. The file MGDLIT contains bibliographic data, among them keywords. The keywords, which form an hierarchical controlled vocabulary of about 2000 items, characterize the contents of the quoted publications in more details than titles can do. Experts, who specially review the documents, select appropriate keywords. The file MGDCOM deals with the corresponding compounds; it contains numerical structural parameters and graphical information.

: A new module enables (sub)structure retrievals.

: By default compound hitlists contain structural formulas

The main retrieval options include:

• bibliographic search terms
• keywords (hierarchical terms of controlled vocabulary)
• :(sub)structure retrieval
• substance names and synonyms
• gross formula (Hill system) and CAS Registry numbers
• individual element count search fields for C, H, N, O, P, S and F
• numerical searches of bond lengths and angles
• nested Boolean expressions
• file crossover
• language field
• supplementary terms for additional keywords
• chemical name segment search field
• element formula search field, if subscripts in Hill formula are unknown
• element count search field for total number of elements in formula
• atom count search field for total number of atoms in formula
• periodic group search field
• method of structure determination search field
• locator field to locate bibliographic entries corresponding to a certain compound entry
• left truncation
• extensive interactive thesaurus functions
• fuzzy search
• statistical functions (tabular and graphical format)
• sorting of hitlists
• user defined formats
• user defined comments

• bibliographic data (title, authors, source, year of publication, errata)
• keywords (hierarchical terms of controlled vocabulary)
• chemical name and conformational description
• stereo formula
• numerical structural data (distances, angles)
• remarks (comments on the structures and their determination).