Decomposition of Halogenated Molybdenum Sulfide Dianions [Mo₃S₇X₆]^2- (X = Cl, Br, I).

ABSTRACT: Molybdenum sulfides are considered a promising and inexpensive alternative to platinum as a catalyst for the hydrogen evolution reaction. In this study, we perform collision-induced dissociation experiments in the gas phase with the halogenated molybdenum sulfides [Mo₃S₇Cl₆]^2-, [Mo₃S₇Br₆]^2-, and [Mo₃S₇I₆]^2-. We show that the first fragmentation step for all three dianions is charge separation via loss of a halide ion. As a second step, further halogen loss competes with the dissociation of a disulfur molecule, whereas the former becomes energetically more favorable and the latter becomes less favorable from chlorine via bromine to iodine. We show that the leav

SUBMITTER: Pritzi M 

PROVIDER: S-EPMC9460775 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature