Photochromism
Photochromism is the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation, where the two forms have different absorption spectra. Trivially, this can be described as a reversible change of colour upon exposure to light. The phenomenon was discovered in the late 1880s, including work by Markwald, who studied the reversible change of color of 2,3,4,4-tetrachloronaphthalen-1(4H)-one in the solid state. He labeled this phenomenon "phototropy", and this name was used until the 1950s when Yehuda Hirshberg, of the Weizmann Institute of Science in Israel proposed the term "photochromism". Photochromism can take place in both organic and inorganic compounds, and also has its place in biological systems (for example retinal in the vision pr
primaryTopic
Photochromism
Photochromism is the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation, where the two forms have different absorption spectra. Trivially, this can be described as a reversible change of colour upon exposure to light. The phenomenon was discovered in the late 1880s, including work by Markwald, who studied the reversible change of color of 2,3,4,4-tetrachloronaphthalen-1(4H)-one in the solid state. He labeled this phenomenon "phototropy", and this name was used until the 1950s when Yehuda Hirshberg, of the Weizmann Institute of Science in Israel proposed the term "photochromism". Photochromism can take place in both organic and inorganic compounds, and also has its place in biological systems (for example retinal in the vision pr
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El efecto fotocromático se def ...... ás adecuado de "fotocromismo".
@es
Fotochromizm - rodzaj chromotr ...... zek
* reakcje redoks i inne.
@pl
Le photochromisme est la trans ...... le entre différentes couleurs.
@fr
O fotocromismo ou efeito fotoc ...... quando a luminosidade é baixa.
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Per effetto fotocromatico si i ...... tudi furono condotti nel 1950.
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Photochromism is the reversibl ...... etinal in the vision process).
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Unter Photochromie versteht ma ...... n Sodalith-Varietät Hackmanit.
@de
Фотохромизм, или тенебресценци ...... олько мощных световых потоков.
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El efecto fotocromático se def ...... lés se denomina photochromism.
@es
Fotochromizm - rodzaj chromotr ...... zek
* reakcje redoks i inne.
@pl
Le photochromisme est la trans ...... les constantes diélectriques.
@fr
O fotocromismo ou efeito fotoc ...... quando a luminosidade é baixa.
@pt
Per effetto fotocromatico si i ...... tudi furono condotti nel 1950.
@it
Photochromism is the reversibl ...... ample retinal in the vision pr
@en
Unter Photochromie versteht ma ...... enlänge ν2 stark beschleunigt.
@de
Фотохромизм, или тенебресценци ...... ский и физический фотохромизм:
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Efecto fotocromático
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Effetto fotocromatico
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Fotochromizm
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Fotocromismo
@pt
Photochromie
@de
Photochromism
@en
Photochromisme
@fr
Фотохромизм
@ru