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Updated: Jun 3, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Nonstatistical dynamics in unlikely places: [1,5] hydrogen migration in chemically activated cyclopentadiene
Lawrence M Goldman1, David R Glowacki, Barry K Carpenter
1School of Chemistry, Cardiff University, Cardiff CF10 3AT, United Kingdom.
Abstract:
A molecular dynamics simulation reveals the occurrence of nonstatistical dynamical effects in the ring-opening and subsequent [1,5] H migration of bicyclo[2.1.0]pent-2-ene. The symptoms of the effects do not show up in the overall kinetics or product branching ratios of the reaction, which are well explained by a master-equation analysis, but in an oscillatory preference for migration of the two methylene hydrogens. It is predicted that these oscillations could have an observable effect on final product ratios in isotopically labeled analogues, and that the effect might be greater in certain solvents than in the gas phase.
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