Preferred Label : sudden polarization;
IUPAC definition : The occurrence of a large intramolecular charge separation in the singlet excited
state of polyenes and their derivatives twisted about a double bond. Non-symmetrical
substitution or geometrical distortion is effective in polarizing the system. An example
is the stabilization of the zwitterionic structure of 90 twisted ethene with one
methylene group pyramidalized:;
Origin ID : ST07110;
See also
The occurrence of a large intramolecular charge separation in the singlet excited
state of polyenes and their derivatives twisted about a double bond. Non-symmetrical
substitution or geometrical distortion is effective in polarizing the system. An example
is the stabilization of the zwitterionic structure of 90 twisted ethene with one
methylene group pyramidalized:
