photodimern.
/ˈfəʊtəʊˌdʌɪmə/, U.S. /ˈfoʊdoʊˌdaɪmər/ Chemistry.
A dimer formed by photochemical action.
ΘΚΠ
the world > matter > chemistry > isomerism > [noun] > photoisomerism > photodimerization > photodimer
photodimer1936
1936 Trans. Faraday Soc. 32 521 The photodimer of thiophosgene.
1970 J. B. Birks Photophysics of Aromatic Molecules vii. 322 If..photodimers of other anthracene derivatives are irradiated with ultraviolet photons of sufficient energy..photolysis occurs and the dimer reverts to the original pair of individual molecules.
2000 Science (Nexis) 13 Oct. 307 We observed no photoproduct formation, such as stilbene photodimers.
Derivatives
ˌphotodiˈmeric adj. of, relating to, or designating a photodimer.
ΘΚΠ
the world > matter > chemistry > isomerism > [adjective] > of or relating to photoisomerism > photodimeric
photodimeric1952
1952 Chem. Rev. 51 19 The nonoccurrence of the photodimeric products of the previously mentioned anthracene derivatives is probably due to their thermolability.
1979 Jrnl. Org. Chem. 44 609/1 An additional photodimeric product was obtained from the irradiation of 5a at λ > 270 nm.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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