Related Experiment Video
Updated: Feb 11, 2026

Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
Published on: May 25, 2016
Actuating Cycloaromatization of a Bicyclo[7.3.1]enediyne by Annelation: An Example of Inverse Dependence on Bridge
Michael H Nantz1, David K Moss1, John D Spence1
1Department of Chemistry, University of California, Davis, CA 95616 USA, Fax: (+1) 916-752-8995.
Abstract:
Although the acetylenic carbon atoms in 2 are closer together than those in 1, only the latter undergoes Bergman cyclization. In contrast, in analogous enediynes without an annelated cyclohexane ring a change in the hybridization of the bridging carbon atom from sp2 to sp3 leads to a dramatic increase in the cyclization rate.
Related Concept Videos
Hybridization of Atomic Orbitals I
Hybridization of Atomic Orbitals II
The Energies of Atomic Orbitals
Atomic Structure
Design Example: Strain Gauge Bridge or Wheatstone Bridge
Hybrid Zones

