A bright blue compound that was first discovered by accident seven years ago in an Oregon State University laboratory – and has since garnered global attention – has now led to the more rational and methodical development of other colors that may ultimately change the world of pigments.
Findings on the newest pigments, in shades of violet and purple, were just published in Inorganic Chemistry, a journal of the American Chemical Society.
More important, researchers say, is that progress made since the first accidental discovery of this family of inorganic compounds has allowed intensive science to take the place of luck. What’s emerging is a fundamental understanding of the chemistry involved in these “trigonal bipyramidal” compounds.
As the basis for pigments, they are quite remarkable.
Compared to the flaws that exist in many of the compounds they replace, they are all thermally stable, chemically inert, non-toxic and non-carcinogenic. For commercial use, they also have the extraordinary characteristic of reflecting heat, which is highly unusual for dark colors and potentially of great value for saving energy.