Thermally responsive cobalt(III) complex imaging compositions having lowered activation temperatures

摘要

A dye-forming or imaging composition, element and method are disclosed, wherein a cobalt(III) complex containing releasable ligands is converted to cobalt(II) and the ligands by heating in the presence of a first destabilizer compound. The temperature at which the conversion reaction is initiated is unexpectedly lowered by the addition of a second, different destabilizer compound.