chromophores
Light-absorbing chemical groups
Chromophores are the parts of molecules responsible for absorbing light and producing color.
In dyes, pigments, and biological molecules like chlorophyll or hemoglobin, the chromophore is the specific chemical group where light absorption occurs.
The term appears in chemistry, biochemistry, and materials science: The chromophore in carrots gives them their orange color.
Light-harvesting plant pigment
- carotenoidPlant-derived color compound
- retinalOf eye's inner lining
- bilirubinHemoglobin degradation byproduct
- melaninNatural coloring compound
hemoglobin · cytochrome · photoreceptor · vision · photosynthesis · lycopene
Study of light-matter interaction
- wavelengthSpatial repetition interval
- ultravioletWavelengths shorter than violet
- visibleAble to be seen
- infraredHeat-bearing electromagnetic waves
spectrum · absorbance · transmittance · molar absorptivity · concentration · bandwidth · red shift · blue shift
Color-imparting material
- colorantSubstance that imparts hue
- stainLasting surface discoloration
- textileMaterial from woven fibers
- fabricWoven or knit material
indigo · alizarin · mordant · fastness · dyeing · colorfastness · synthetic · natural dye
Stimulation of response
- emissionDischarged substance or act
- singlet stateElectrons with opposite spins
- phosphorescenceHeatless delayed light emission
- quenchingRapid cooling process
lifetime · brightness · fluorescein · coumarin · near-infrared
Verb form variation system
- pi electronsDelocalized bonding electrons above/below plane
- double bondTwo shared electron pairs
- delocalizationDistribution across multiple sites
- resonanceAmplified oscillation at natural frequency
chlorophyll
Light-harvesting plant pigment
- carotenoidPlant-derived color compound
- retinalOf eye's inner lining
- bilirubinHemoglobin degradation byproduct
melanin · hemoglobin · cytochrome · photoreceptor · vision · photosynthesis · lycopene
spectroscopy
Study of light-matter interaction
- wavelengthSpatial repetition interval
- ultravioletWavelengths shorter than violet
- visibleAble to be seen
infrared · spectrum · absorbance · transmittance · molar absorptivity · concentration · bandwidth · red shift · blue shift · peak
pigment
Color-imparting material
- colorantSubstance that imparts hue
- stainLasting surface discoloration
- textileMaterial from woven fibers
fabric · indigo · alizarin · mordant · fastness · dyeing · colorfastness · synthetic · natural dye · madder
excitation
Stimulation of response
- emissionDischarged substance or act
- singlet stateElectrons with opposite spins
- phosphorescenceHeatless delayed light emission
quenching · lifetime · brightness · fluorescein · coumarin · near-infrared
conjugation
Verb form variation system
- pi electronsDelocalized bonding electrons above/below plane
- double bondTwo shared electron pairs
- delocalizationDistribution across multiple sites