chromophore

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Related to Chromophore group: chromophoric

chromophore

[′krō·mə‚fȯr]
(chemistry)
An arrangement of atoms that gives rise to color in many organic substances.
References in periodicals archive ?
The CV without treatment showed a peak of maximum absorption at [lambda] = 590 nm and two smaller peaks at [lambda] = 305nm and [lambda] = 250nm (Figure 5A) which are related to the chromophore group (central carbon or methane group bonded to three aryl groups) and aromatic rings attached to the dye.
The bands in the 338-330nm range are attributed to p- p transition originating in the C=N chromophore group [40].
It is easier to make the chain movements, caused by the isomerized groups, in polymer where the only one azo bond is present in the chromophore group.