Low-Temperature Photochemistry of Previtamin D: A Hula-Twist Isomerization of a Triene.
Angew Chem Int Ed Engl
; 37(4): 505-507, 1998 Mar 02.
Article
en En
| MEDLINE
| ID: mdl-29711176
ABSTRACT
What is the standard course of the cis-trans isomerization of nonpolar polyenes? Many results support a pathway in which only a central CH group rotates out of the plane, while the remaining parts of the molecule reorient within the plane ("hula-twist" mechanism). The intermediate structure through which the molecule passes corresponds to the geometry predicted for the conical intersection of the S1 and S0 potential energy surfaces (see picture).
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MEDLINE
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En
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Angew Chem Int Ed Engl
Año:
1998
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Article