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Related to chromophore: Auxochrome


Any of various chemical groups that absorb light of certain wavelengths and when present in an organic compound, such as a dye or pigment, are responsible for the color of the compound.

chro′mo·phor′ic (-fôr′ĭk) adj.


(Chemistry) a group of atoms in a chemical compound that are responsible for the colour of the compound
ˌchromoˈphoric, ˌchromoˈphorous adj


(ˈkroʊ məˌfɔr, -ˌfoʊr)

any chemical group that produces color in a compound, as the azo group −N=N−.
chro`mo•phor′ic (-ˈfɔr ɪk, -ˈfɒr-) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chromophore - the chemical group that gives color to a molecule
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
dye, dyestuff - a usually soluble substance for staining or coloring e.g. fabrics or hair
References in periodicals archive ?
This observation is not consistent with an interference that derives exclusively from the contribution to background absorbance, but instead suggests a mechanism involving the reaction of bilirubin with components of the reagent system to produce a chromophore that absorbs at or near the analytical wavelength.
The protein coils itself into the shape of a barrel, with three amino acids in the center serving as the light-emitting chromophore (SN: 10/5/96, p.
This structure is a strong chromophore resulting in the yellowing of urethanes.
The project attempts to investigate members of a novel and very interesting class of bioactive molecules of interest as anti-cancer agents, consisting of a light-absorber chromophore (PS) and a cisplatin-like unit.
The use of missiles in the structure of the drug delivery system solves the problem of using chromophore -- which is not very safe -- in the formulation of the drug.
In solar cells made from organic film, this brief timescale constrains the size of the chromophore arrays and how far excitation energy can travel," Fleming stated.
More specifically, factors affecting the properties of SRGs are the length of repeating units of polymer chains (11), flexibility of the main chains, hydrogen bonding, the nature of chromophore substituents and size of the chromophores (12), solvent types, and film thickness (13).
Dragan (Institute of Macromolecular Chemistry, Romania) collects information from the literature as well as original contributions in the field of ionic (co)polymers and hybrids such as self-assembled multilayers, ionic polymers containing azobenzene chromophore, phase separation processes, chelating ion exchangers, polymer electrolytes, functionalized solid surfaces, ionic hybrid hydrogels, and nanocomposites for polymer electrolytes.
In addition, an initial photon may excite a bond which requires a second photon absorption of a given (perhaps different) energy to scission or become a chromophore.
Upon absorption of a photon by a chromophore, an electron is promoted from the singlet ground state (SO) to an intermediate vibrational level of the excited singlet state (S1).
This exciton jumps from one chromophore to another until it reaches a reaction center, where that energy is harnessed to build the molecules that support life.