New chromogens of the ferroin type--III: some 2-substituted benzimidazole derivatives.
A spectrophotometric study has been made of the iron(II) and copper(I) chelates of 23 new compounds that contain the ferroin functional grouping. Although none of the compounds proved to be superior to chromogenic reagents currently in use, the results are of interest from the point of view of designing new chromogens for iron and copper.
Schilt
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Department of Chemistry, Northern Illinois University, DeKalb, Illinois 60115, U.S.A.
Kluge
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KR