2 research outputs found
Seven Chromisms Associated with Dithizone
Variations in the
electromagnetic wavelengths of absorption and
reflection of molecules do not only make life colorful but also are
often of central importance in solar energy conversion and optoelectronic
information processing and transfer. Dithizone and its derivatives
and complexes are, to our knowledge, probably the most “colorful”
compound, being responsive to no less than seven different external
stimuli that effect color change. Apart from a more detailed discussion
of the cyclic voltammetry and observed electrochromism in the SCH<sub>3</sub>-substituted free ligand and mercury complex, concentratochromism,
solvatochromism, halochromism, thermochromism, and chronochromism
in the ligand, and photochromism in the carboxy-functionalized phenylmercuryÂ(II)
complex are also presented here. Color changes are either associated
with proton transfer or loss, or isomerization