Alfredo N. Rella

Profesor de Química

 

profesor@rella.com.ar

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Química (del griego "khemeia" que significa "alquimia"). Ciencia Natural que estudia la estructura, propiedades y transformación de la materia a nivel atómico y molecular.

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Educación
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"El hombre razonable se adapta al mundo y el no razonable intenta adaptar el mundo a su gusto. Por eso el progreso depende de los hombres no razonables".
 

George B. Shaw

 

Enlaces a páginas con información relevante de Química.

 

Chemical Data Sources

  • Britannica Online
    The Web version of the Encyclopaedia Britannica is an excellent source for general articles on scientific topics, and for biographical articles on noted scientists. Articles contain the full text of the print encyclopedia, as well as links to some relevant Web sites outside Britannica. Note: full access is available only to subscribers. Users with a ucsb.edu Internet account automatically get in on the Davidson Library subscription.

  • NIST Reference on Constants, Units and Uncertainty
    This National Institute of Standards and Technology has a searchable and browsable list of the important physical constants with bibliography, as well as a thorough description of the SI system of units and a description of methods of expressing degree of uncertainty in measurements. An excellent reference site.

  • The Laws List
    This collection of laws, rules and constants in physics, compiled by Erik Max Francis, includes a number of interest in physical chemistry, e.g. the gas laws, Rydberg formula, etc.

  • WebElements
    WebElements is a hypertext-linked collection of property data on the first 112 elements including (where available): general, chemical, physical, nuclear, electronic, biological, geological, crystallographic, reduction potential, isotopic abundances, electronic configurations, ionization enthalpy data and additional textual information, especially on the history of the elements.

  • Visual Elements Periodic Table
    This site, created by the Chemical Society, is notable for its artistic displays of each element and "periodic landscapes" - computer generated three-dimensional images of various physical properties of the elements. A history of the periodic table is included, as well as basic physical properties of each element (the latter require an Adobe Acrobat reader.)

  • Table Of The Nuclides
    The Table of the Nuclides first presents a map of all known nuclides. Each horizontal row represents one element; colored dots indicate the known isotopes of that element. A vertical column represents the nuclides with same neutron numbers. By clicking on a region of the chart, you may see a more detailed chart section. From the colors on the chart, you can get an idea of the life time of a nuclide. By clicking on a cell, you can get properties of the nuclide or atom.

  • NMR Periodic Table of the Elements
    This is a compilation of magnetic resonance data on the elements in periodic table form, compiled by the NMR facility at Texas A&M University.

  • NIST Online Physical Data
    This site contains links to the NIST collections of physical data which have so far been made available over the web, plus a catalog of other NIST data collections.

  • NIST Chemistry Webbook
    The NIST WebBook will provide access to the full array of data compiled and distributed by NIST under the Standard Reference Data Program. The current edition, the Chemistry WebBook, contains, among other data:
    (1) Thermodynamic data on an extensive set of organic and small inorganic compounds - Enthalpy of formation, Heat capacity and Entropy for over 5000 compounds.
    (2) A large set of ion-energetics data - Ionization potential and Appearance potential for over 14,000 compounds.
    (3) IR spectra, mass spectra and electronic/vibrational spectra data for thousands of compounds.
    (4) Reaction thermochemistry data for over 8000 reactions.
    (5) Constants of diatomic molecules (spectroscopic data) for over 6000 compounds.
    (6) Thermophysical property data for 16 fluids
    Data on specific compounds may be located by name, formula or CAS Registry Number.

  • ChemFinder WebServer
    This database, provided by CambridgeSoft, provides basic physical data and links to websites containing other data for a large number of chemical compounds. It is searchable by name, molecular weight, molecular formula, CAS Registry Number or structure (uploaded in SMILES string format).

  • WWW Chemical Structures Databases
    This set of databases, created by the Computer Chemistry Center at the University of Erlangen, includes the WWW Chemical Structure Database, containing more than 2250 automatically collected chemical structures from the Internet, complete with information about the referring HTML pages. It is searchable by name, CAS Registry Number, molecular formula and other data, as well as by structure (uploaded in SMILES string format). Also available are collections of 3D structure coordinates, GIF and VRML renditions of molecules and more. An excellent site.

  • CODATA Key Values for Thermodynamics
     The mission of CODATA is to strengthen international science for the benefit of society by promoting improved scientific and technical data management and use.

  • Organic Compounds Database
    This database, compiled at Virginia Tech and made available by Colby College, provides physical data on a large number of organic compounds, including molecular weight, melting point, boiling point, index of refraction and UV absorption peaks. It is searchable by name, molecular formula or by data values for the above properties.

  • SOLV-DB
    SOLV-DB is a database of physical, chemical, health and safety, regulatory and environmental fate data on over 100 common organic solvents, provided by the National Center for Manufacturing Sciences. It is searchable by name, formula, CAS Registry Number, property data values and so forth.

  • IUPAC Chemical Nomenclature
    This site, created by G.P. Moss of Queen Mary and Westfield College, contains a number of IUPAC documents on organic and biochemical nomenclature, in many cases including sample structure diagrams.

  • IUPAC Nomenclature of Organic Chemistry
    Another good nomenclature site, easily browsable and searchable, provided by Advanced Chemistry Development (ACD) Inc.

  • Hazardous Chemicals Database
    This database, created at the University of Akron, will allow the user to retrieve information for any of over 1300 hazardous chemicals based on a keyword search. Potential keywords include names, formula and registry numbers (CAS, DOT, RTECS and EPA).

  • ECDIN - Environmental Chemicals Data Information Network
    ECDIN is a factual databank, created under the Environmental Research Programme of the Joint Research Centre (JRC) of the Commission of European Communities at the Ispra Establishment. Chemicals are searchable by name, molecular formula or CAS Registry Number. Possible available date include: Identification, Physical-Chemical Properties, Production and Use, Legislation and Rules, Occupational Health and Safety, Toxicity, Concentrations and Fate in the Environment, Detection Methods, Hazards and Emergency. Not all chemicals listed will have data in all fields.

  • Thermodex
    While this web site does not actually list thermophysical or thermochemical data, it is an extremely useful index to such data available in a host of printed data collections (excluding Beilstein, Landolt-Bornstein, the CRC Handbook and Perry's Handbook), searchable by name of property, class of compound, specific compound or combinations of the above. Thermodex is the creation of the Library of the University of Texas at Austin.

 

 

Materials Safety Data Sheets Sites

Materials Safety Data Sheets contain basic safety information on the storage, handling and use of chemicals. Manufacturers are required to provide them on request for any chemical products they sell. There are a number of Internet sites which provide electronic collections of MSDS's for quick reference.

  • MSDS related links from University of Georgia
    This web site contains a list of MSDS web sites from a variety of sources.

  • MSDS from Vermont SIRI
    This site from Vermont Safety Resources on the Internet contains a searchable collection of MSDS from a variety of chemical manufacturers. It also includes a large collection of links to other Web MSDS sites. Vermont SIRI also maintains a good collection of links to other health and safety sites on the Vermont SIRI Web Site.

  • MSDS from PTCL in Oxford, U.K.
    This Web site contains an alphabetically grouped collection of MSDS from a variety of sources. The collection is maintained by the Physical and Theoretical Chemistry Laboratory at the University of Oxford.

  • MSDS-SEARCH
    This site is maintained by Envirocare International, Inc. It is a free service bringing together MSDS's from a wide range of chemical manufacturers (over 1000 manufacturers as of 6/99) and public databases. The site includes a glossary of MSDS terminology and links to sites which explain the how and why of MSDS's

University Chemistry Department WWW sites

The following are links to the web pages of academic chemistry and/or biochemistry departments in California, the rest of the United States and the world. Nearly all have contact information, lists of faculty and courses and other useful information.

More information about many programs in the United States and Canada may be found in the ACS Directory of Graduate Research. The 1999 version is available at DGRWeb.

For rankings of Ph.D chemistry programs in the U.S., see the U.S. News and World Report rankings, last updated for chemistry in 1999. Rankings are given for chemistry in general and for the specialties of analytical, bio-organic/biophysical, inorganic, organic, physical and polymer chemistry. Biochemistry and Molecular Biology departments are listed separately.

 

University of California at Santa Barbara Department of Chemistry and Biochemistry (DGRWeb listing)

Other California Universities

Other U.S. Universities

Universities Outside the United States

 

 

Super Sites

These are major collections of World Wide Web information in chemistry. Some of the sources they link to may duplicate each other or the Infosurf Chemistry Page, but you will also find unique resources. If you spot any resources that you think should receive their own listings here, contact Chuck Huber (huber@library.ucsb.edu)

  • Analytical Chemistry Springboard from Umeå University
    This is an excellent collection of Internet resources dealing specifically with analytical chemistry.

  • Australian Chemistry Network -- OzChemNet
     

  • Biochemistry: WWW Virtual Library at Harvard
    This biochemistry resource collection is part of the excellent "WWW Virtual Library" alliance of sites.

  • Biomolecular & Biosequence Databases (Harvard)
    On the same server as the above, this is one of the best lists of the ever-growing libraries of biosequence information available on the Web.

  • ChemCenter
    This is a pooling of Web resources from the American Chemical Society and Chemical Abstracts Service, including STNEasy, Chemcyclopedia and more. It will eventually feature unique resources as well.

  • ChemDex from the University of Sheffield
    ChemDex is one of the premier collections of chemistry sites on the Web, extremely comprehensive and well organized. See also ChemWeb below.

  • Chemie.de
    An excellent recently developed site with a huge collection of links organized by subject class (unfortunately, the links are identified by the page title, which isn't always very descriptive), as well as a nice collection of online tools like a molecular mass calculator, chemical software links, and job and conference listings.

  • ChemInfo from Indiana University: CIS-IU
    This site, created by Gary Wiggins, chemistry librarian at Indiana University, is excellent, especially for chemical information instruction resources.

  • Chemistry : Yahoo
    Yahoo's hierarchical collection of chemistry resources is extremely large, if not very selective or well-maintained.

  • chemsoc
    This site, new for 1998 from the Royal Society of Chemistry in Great Britain, provides a wide range of chemical resources, especially links to academic, educational and scholarly society web sites, and a list of forthcoming conferences and events.

  • Chemistry Web from Nanyang Technological University in Singapore
    This site is extensive, very well organized and annotated and attractively displayed. Well worth a look, especially for newsgroups and Asian resources.

  • ChemWeb.com
    This site is an "Internet club for chemists", containing chat rooms, forums, a "shopping mall" with links to suppliers, a "library" with full-text journals from various publishers and databases from MDL Information Systems, Inc., job postings, its own online magazine for chemists (The Alchemist) and other services. ChemWeb now includes ChemDex Plus, a searchable version of the excellent Sheffield ChemDex site. Members must register, but membership is free.

  • EInet: Chemistry
    Another hierarchically organized collection; like Yahoo, it is large but not well maintained.

  • German Chemical Resources: WWW Virtual Library from Karlsruhe
    As the name implies, this site focuses on Internet chemical resources based in Germany. Available in both German and English versions.

  • The Homepage for Chemists
    A large collection of links to Web chemistry resources, well-classified and updated. Also available in a German language version.

  • INFOMINE Physical Sciences from UC-Riverside
    Not one of the largest physical science sites, but notable for its use of assigned subject headings and keywords for better searching of the resource database.

  • Information Retrieval in Chemistry
    This interesting new site, maintained at the Institute of Physical Chemistry, NCSR "Demokritos" in Athens, Greece, is notable for its detailed subject classification of the numerous sites to which it links.

  • Latinamerican Chemistry Web (English version)
    This site is sponsored by the Organization of American States and hosted by CINVESTAV in Mexico. It is especially good for addresses and contacts for Latin American universities and has a host of useful links. It is also available in a Spanish language version.

  • Links for Chemists
    A superb collection of links maintained by Prof. Michael Barker at the University of Liverpool Department of Chemistry. "Links" is notable for its comprehensiveness, frequent updating and identification of new links.

  • NIST Virtual Library Chemistry Subject Guide
    This guide to chemistry Web resources from the National Institute of Standards and Technology is not huge, but does contain a few unique links.

  • Réseau Chimie
    This web site, headquartered in Quebec, Canada, has an extensive collection of well-selected links to Internet resources in chemistry, entirely in French. Each of the individual links has been annotated.

  • Rolf Claessen's Chemistry Index
    This is a very comprehensive, frequently updated collection of links covering all areas of chemistry.

  • SciQuest
    SciQuest provides a searchable and browsable collection of links to a vast number of chemical and equipment suppliers. Users may enter as guests, or register as members free of charge.

  • Thermodynamic Data and Property Calculation Sites on the Web
    An extensive collection of thermodynamic data Web sites from the Thermodynamics Research Lab at the University of Illinois at Chicago.

  • Wendy Warr & Co.
    This web site for the consulting firm operated by renowned chemical information specialist Wendy Warr includes links to excellent collections of information on current meetings, combinatorial chemistry and chemical structure information on the Web.

 

 

Awards and Prizes

  • Nobel Prizes in Chemistry
    This site lists the names of the Nobel Prize winners in chemistry and the achievements for which they won the prize, from 1901 to 1995. In some cases, the list gives links to home pages devoted to the winner.

  • Winners of the Nobel Prize in Chemistry
    This is an even better site, with a little biographical information on the winners, and more Web links, including an Alta Vista search on each chemist

  • Awards Administered by the American Chemical Society
    This site lists the awards administered by the ACS, with descriptions of each, contact persons, and information on the nominating procedure.

 

 

Professional Societies

These are the Web sites for the major chemical societies. Most have information on their publications, conferences, services, membership and so on. If you don't see the society you're looking for below, try the Royal Society of Chemistry's chemsoc Societies Directory. They also have a Societies Index, which allows the user to search multiple society Web sites at once.

 

 

 

American Chemical Society

 

 

Alfredo N. Rella

profesor@rella.com.ar

 

Copyright 2007. Todos los derechos reservados. Buenos Aires, Argentina