Английская Википедия:(Z)-Stilbene

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:More citations needed

Шаблон:Chembox

(Z)-Stilbene is a diarylethene, that is, a hydrocarbon consisting of a cis ethene double bond substituted with a phenyl group on both carbon atoms of the double bond. The name stilbene was derived from the Greek word Шаблон:Lang, which means shining.

Isomers

Stilbene exists as two possible isomers known as (E)-stilbene and (Z)-stilbene. (Z)-Stilbene is sterically hindered and less stable because the steric interactions force the aromatic rings 43° out-of-plane and prevent conjugation.[1] (Z)-Stilbene has a melting point of Шаблон:Convert, while (E)-stilbene melts around Шаблон:Convert, illustrating that the two compounds are quite different.

Uses

Properties

Natural occurrence

Many stilbene derivatives (stilbenoids) are present naturally in plants. An example is resveratrol and its cousin, pterostilbene.

References

Шаблон:Reflist