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Sadtler Spectra

Sadtler Spectra

 The Sadtler series provides graphical spectral information for over 50,000 chemical compounds. The series is comprised of a collection of green binders located in the Reference Collection of the Science Library At QC437 A

In order to locate the Sadtler spectrogram needed, you will need to consult an index. Each Sadtler Index is available in two sections: the cumulative volume (hardbound) and the supplements (in 3-ring binders). You may need to check many sections of the index to find the spectral reference you need.

Selecting an Index

Each Sadtler Index has usage instructions in the front section. You may wish to consult these instructions for further information about each Index. The types of Sadtler indices available include:

Alphabetical Index: allows you to search by compound name; nomenclature is similar to that used in Chemical Abstracts.

Chemical Class Index: allows you to search by chemical class, ie. carbonyls; based on the CAS "Order of Precedence of Functions".

Molecular Formula Index: allows you to use the chemical formula of a compound to search for spectral data.

Numerical Index: allows you to identify a compound based on its Sadtler spectra number.

Peak Locator Index: provides a means of locating spectra data using the peak locations.

Spec-Finder Index: allows for identification of an unknown spectrum.

 

Beginning Your Search

If the compound's formula is known, the best place to begin a Sadtler spectral search is with the Molecular Formula Index. Beginning with the Formula Index prevents difficulties caused by nomenclature variations. Using the Formula Index, look up the compound by its chemical formula. The listing for Theobromine (C7H8N4O2) would look like:

Name

C

H

Br

Cl

F

I

N

O

P

S

Si

M

Prism

Grating

UV

NMR

C-13

Theobromine

7

8

 

 

 

 

4

2

 

 

 

 

7164

33053

21916

17339

 

When searched by chemical formula, this listing provides the following information:

Compound Name: Theobromine

Prism Spectra Number: 7164

Grating Spectra Number: 33053

UV Spectra Number: 21916

NMR Spectra Number: 17339

C-13 Spectra Number: Sadtler has no C-13 spectra for this compound.

To find the spectrogram you need, locate the section of volumes pertaining to that type of spectra, then locate the number of the spectrogram needed. For example, to find the UV spectra for Theobromine, locate the section of green binders which contain the UV spectral data, then select spectrogram #21916.

The other Sadtler indices are used in a similar fashion. Once you have located the appropriate compound using the chemical formula, compound name or other information, locate the section containing the type of spectra you need, then use the spectrogram number given in the index to located the needed spectra.

Other resources in the library may also act as indexes to the Sadtler spectrograms. The multi-volume Handbook of Data on Organic Compounds (QD257.7 H35) provides references to specific spectrogram locations for many organic chemicals and has the additional advantage of having a CAS # index.

Other spectral sources are available in the Sciences Library. Use the handout on spectral resources to locate them, or ask a reference librarian for assistance.

Last modified: 11/21/2003 11:52 AM by by M. Potter

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