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 absorption bands in the 338-335 nm range have resulted from p-p transition due to -CH=N- chromophore group.
These range from lines consisting of an ester based polymer modified with a chromophore group; some made from a modified methacrylic polymer; others manufactured from a copolymer of hydroxystyrene and methyl methacrylate, modified with chromophore groups; plus some consisting of amino-resin and modified phenolic resin, (and others).
This complex structure is considered a chromophore group that is associated with auxochromic amino or hydroxyl groups.