photoisomerize
/ˌfəʊtəʊˈʌɪsəmərʌɪz/(also photoisomerise) Chemistry
verb
[no object] To undergo photoisomerization. Also with object: to cause to undergo photoisomerization.
Origin
1960s; earliest use found in Journal of the American Chemical Society. From photo- + isomerize, after photoisomerization.