Nonspectroscopic applications

Predominant among the nonspectroscopic instrumental methods is X-ray diffraction. This technique has been known for many years for example, Brill used it to work out the structure of Fe2(CO)9 in 1927 (32). However, important and extensive application of this technique to organometallic chemistry came only when computer technology had been sufficiently advanced to speed up the computations involved. X-Ray diffraction is reviewed by Baenziger (10). Electron and neutron diffraction have also been used. Tsutsui has covered these various methods in a two-volume series (267). 

In the following review application for spectroscopic and nonspectroscopic fields along with comments, all based on the important references and explanatory practical experience of the author are found in 57 tables. 

The two major fields of nonspectroscopic applications of the derivative technique are chromatography and thermography (Table 5-54 and 5-57). In the former case, it is possible to improve the separation of unsatisfactory peaks and to identify the fractions. In the larger case, the fine structure of thermograms can be better evaluated. The first or second order derivatives are sufficient in most situations. This is also valid for electrograms and polarograms. 

Table 5-55. Nonspectroscopic applications densitometry, electroanalysis, and electrophoresis.

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