Metals Data File

The Metals Data File is offered by the Canadian Scientific Numeric Database Service of the National Research Council of Canada. It covers the same literature period and complements the ICSD for metals, alloys, intermetal lies and minerals. It contains at present about 60000 entries. Because of difficulties in the definitions of these terms there is some overlap with the ICSD. 

Metals Crystallographic Data File (CRYSTMET). Toth Information Systems Inc., Ottawa, Canada. Electronic database of crystal structures of metals, intermetallic compounds and minerals. WWW.Tothcanada.com. 

Metals Crystallographic Data File (CRYSTMET). National Research Council of Canada, Ottawa. 

X-ray powder diffraction data may be helpful but are often hard to interpret for complex mixtures use of computer data file search programs (6) and microcamera methods for single particle analysis (7) may be useful for identification. Comparative sample identification is generally less often possible than for metals since the latter are manufactured while the nonmetallic inorganic solids are often unprocessed materials with large property variations. However, where applicable, the following are some examples of determinations which might be made (a) particle size by microscopy (b) microstructure and sub-microstructure characterization... 

The Structure module of MOMEC enables you to analyze structures that have been saved as. hin files. These can be structural data files from experimental work, from a data base (e.g. the CSD) or computed structures such as those optimized with MOMEC. The geometric parameters accessible include the calculation of a least-squares plane (defined by three or more points), the distance of atoms from this plane, the angle between a vector such as a metal-ligand bond and a plane, that between two planes, e. g., for the measure of a trigonal twist angle or a tetrahedral twist angle. In this lesson, we will analyze the structures of the four conformers of [Co(en)3]3+ considered in Sections 17.3, 17.4 and 17.5. 

The Metals Crystallographic Data File (CRYSTMET) covers metals, alloys, and intermetallides (77 242 entries in 2003, ca. 2500 added annually). It was started in I960 in Los Alamos (USA), in 1974 has been transferred to the National Research Council of Canada and since 1996 is managed by Toth Information Systems (Ottawa, Canada). CRYSTMET contains the bibliographic and crystallographic data categories similar to CSD and ICSD, but formal connectivity is not applicable. 

NRCC Metals Crystallographic Data File (CRYSTMET) is a database of crystallographic and bibliographic data on intermetallic phases. Also included are some hydrides and binary oxides. The database contains about 11,000 entries. It was started by Don T. Cromer at Los Alamos Scientific Laboratories, William Burton Pearson at Waterloo University, and Lauriston D. Calvert at The National Research Council of Canada (NRCC) and is currently maintained by the Canadian Institute for Scientific and Technical Information (CISTI). 

Rodgers, J. R., and Wood, G. H. NRCC Metals Crystallographic Data File (CRYSTMET). In Crystallographic Databases. Information Content, Software Applications, Scientific Applications. Section 2.3. pp. 96-106. International Union of Crystallography Bonn, Cambridge, Chester (1987). 

International Centre for Diffraction Data — Maintains and distributes the Powder Diffraction File (PDF), a file of over 500,000 X-ray powder diffraction patterns used for identification of crystalline materials. The ICDD also distributes the NIST Crystal Data file, which contains lattice parameters for over 235,000 inorganic, organic, metal, and mineral crystalline materials. Address 12 Campus Blvd., Newton Square, PA 19073-3273 [www.icdd.com]. 

Toth Information Systems — Maintains the Metals Crystallographic Data File (CRYSTMET). Address 2045 Quincy Ave., Gloucester, ON, Canada KIJ 6B2 [www.toth canada.com]. 

Metals Crystallographic Data File NASA Chemical Kinetics Data... 

Protein Database, ICSD, the Inorganic Crystallographic Database and METALS, the Metals Database. These last four systems can be viewed as a source of building blocks for molecular modelling. Finally there is MMSA, Macro Molecular Sequence Analysis, data files and software tools for analysis of amino-acid and nucleotide sequences in proteins and nucleic acids. These systems (unlike those of the first group) are usually consulted by research scientists. 

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