Conformational and state-specific effects in reactions of 2,3-dibromobutadiene with Coulomb-crystallized calcium ions.

ABSTRACT: Recent advances in experimental methodology enabled studies of the quantum-state- and conformational dependence of chemical reactions under precisely controlled conditions in the gas phase. Here, we generated samples of selected gauche and s-trans 2,3-dibromobutadiene (DBB) by electrostatic deflection in a molecular beam and studied their reaction with Coulomb crystals of laser-cooled Ca⁺ ions in an ion trap. The rate coefficients for the total reaction were found to strongly depend on both the conformation of DBB and the electronic state of Ca⁺. In the (4p)²P_1/2 and (3d)²D_3/2 excited states of Ca⁺, the reaction is capture-limited and faster for the gauche conformer due to long-range ion-dipol

SUBMITTER: Kilaj A 

PROVIDER: S-EPMC10207874 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature