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ASSIGNMENT 12: CHEM Aabstracts Online & SciFinder Scholar

This week we will examine two more search tools from the American Chemical Society. the first is Chemical Abstracts Online. Using the internet go to The document you find there will be entitled "Using CAS Databases on STN". This is a free tutorial on how to use Chemical Abstracts on STN Online. It is in actuality a text, put on-line to help students and academics learn how to use Chem Abstracts On-line. If you prefer you can download the document in pdf format, and even print it out (now you know why you were encouraged to put Acrobat Reader on your computer. If you print it out, however, be aware that the text is 55 pages!) Read the Preface, Introduction and Lessons 1-8. Then answer the questions below:

  1. What types of files are searchable and what are there labels (which indicate which type of file they are)?

  2. What are Boolean operators? Why are they important? What problems may arise if the wrong Boolean operator is used?

  3. What is the connect cost per hour to STN?

  4. What is the Search Term cost?

  5. What is the cost of each Chem Abstract Number returned and displayed?

  6. Hypothetically, how would you construct a search for a paper published by Patrick A. Wegner in 1976 on an iron carbonyl compound so that it was most cost effective? (Don't do the search, just construct the most cost effective rationale for an online search).

    There will be no actual search with this assignment, we will learn how to retrieve the same information in the following par of the assignment using SciFinder Scholar. It is important to realize what the capabilities of and STN/Chem Abstracts Online search are, since these are still more available than a SciFinder seat at colleges. One SciFinder seat (meaning only one person on the McNeese campus can be logged onto the SciFinder database at a time from the entire McNeese campus) costs approximately $23,000 per year. STN/Chem Abstracts searches are a more economical method of search for smaller industries and many smaller schools.

    The newest online resource available through the McNeese library is SciFinder Scholar. Scifinder Scholar allows several different search options. The easiest to use are the "Research Topic" and "Author" categories. Scifinder also allows browsing of the Tables of Contents of many journals. Additionally, you can draw a structure or reaction in the "Chemical Substance or Reaction" window and do a search. This is especially advantageous if you know the structure but have trouble figuring out the correct name. The search engine contained within SciFinder is very powerful, but it does take some skill to choose which search results are pertinent to your specific search. McNeese has only one "seat" to SciFinder, which means that only one person at a time may be logged on from McNeese. If you are unable to log on, that means someone else is currently using SciFinder(or the inernet connection is down for some reason). SciFinder may only be accessesd from on campus. Please do your searches as efficiiently as possible and get off SciFinder as quick as possible so others may use the system. SciFinder is installed on computers at the library and in all but one computer in the Chemistry Computer Lab (the one which will not connect to the network or the internet).

    Assigned Problems:

  7. Search for the term 1,5-dimethyl-1,5-diazacylcooctane in Reserach Topic. Print out and return all the hits obtained.

  8. Search for the terms "poly(methylaluminoxane) cocatalyst." How many hits containing those concepts together are obtained?

  9. Search in the Author Name search for Ron W. Darbeau. How many hits are obtained? What is the most recent hit and its date?

  10. Use the chemical structure drawing option under "Chemical Structure or Reaction" to draw the compound below:

    This compound is 1,5-dimethyl-1,5-diazacylooctane. Compare your results from the drawing to your search results from 1. Are there any differences?

  11. Search for the term "halatopolymer" in Research Topic. Print out all the results obtained.

  12. Use the Browse Table of Contents option. What is the first article and who are the authors in the latest published part of Inorganic Chemistry What is the last article and who are the authors in the latest published part of Chemistry of Materials?

  13. Using the Company Name/Organization search option, search for McNeese State University. Return the referecnces of the first three entries (i.e titles, jounals, pages, authors, dates, etc.).