11. The aryl selenium anion displaces tributylphosphine oxide forming the alkyl aryl selenide species. 12. Previously Sony Corp . had made a blue-green laser from zinc selenide . 13. Nanoparticles of cadmium selenide ( quantum dots ) glow when exposed to ultraviolet light. 14. Another naturally occurring organoselenium compound is dimethyl selenide . 15. Lead forms four oxides, a sulfide, a selenide , and a telluride. 16. Historically, phase-controlled synthesis of 2D tin selenide nanostructures is quite difficult. 17. Some selenide minerals include ferroselite and umangite. 18. H 2 Te is chemically and structurally similar to hydrogen selenide , both are acidic. 19. Instead, cells store selenium in the less reactive selenide form ( H 2 Se ). 20. In the second step, the selenide is oxidized with hydrogen peroxide to give a selenoxide.