You know what it looks like… but what is it called?
TAKE THE QUIZ“anti isomerism”
We have one entry that includes the term anti isomerism.
syn-anti isomerism
noun: cis-trans isomerism in compounds (such as oximes, diazoates, and azo compounds) containing one or more carbon-to-nitrogen or nitrogen-to-nitrogen double bonds compare benzaldoxime
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Merriam-Webster unabridged