bicycle-pedal (BP) mechanism

https://doi.org/10.1351/goldbook.BT07330
Volume-conserving mechanism proposed for the @P04622@ of conjugated double bonds. Two alternating double bonds rotate concertedly with only the two CH units turning in and out of the plane of the molecule.
BT07330.png
See also:
hula-twist mechanism
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 308 [Terms] [Paper]
Citation: 'bicycle-pedal (BP) mechanism' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.BT07330 RIS BibTex EndNote
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Last revised: February 24, 2014