Copper Selenides via Anion Exchange versus Direct Growth - The Role of Diorganyl Diselenides.

ABSTRACT: Anion exchange is a powerful tool for postsynthetic transformation of nanoparticles that can be coupled with other transformations to create nanostructures unachievable by direct growth. Previous work implicated long-chain dialkyl diselenides as drivers of Se^2- anion exchange on Cu_2-xS, but it lacked mechanistic details. Here, we examined the reactivity trends of diphenyl, didodecyl, and dibenzyl diselenides as drivers of anion exchange to create metastable copper sulfur selenide alloys. We contrasted these reactivity trends with those of direct synthesis of copper selenide nanoparticles, demonstrating mechanistic orthogonalities between these pathways. Dialkyl diselenides were the only species that induced anion exchange. We rationalized the different reaction

SUBMITTER: Choi J 

PROVIDER: S-EPMC12710604 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature