Synthesis and characterization of binary and ternary carbides with main group elements like sulfur, selenium and tellurium.

We have investigated the reactivity of alkali metal acetylides A^IC₂H and A^I₂C₂ with group 16 elements (S, Se, Te) in liquid ammonia. Using grey selenium as one of the starting materials we obtained new compounds with the general formula A^ISeC₂H (A^I = K, Rb, Cs). Possible compounds with the composition A₂Se₂(C₂) (A^I = K, Rb, Cs) are likely to exist. In this context our still preliminary results on similar reactions of sulfur and tellurium with A^IC₂H in liquid ammonia are notable.

Main Publication:

A^ISeC₂H with A^I = K, Rb, Cs: Crystalline Compounds with the elusive ^–Se-C≡C-H Anion

M. Hetzert, M. Werker, U. Ruschewitz, Angew. Chem. Int. Ed. 2018, 57, 16475-16479. Angew. Chem. 2018, 130, 16713-16717.

 

DFG- Projekt

„ Entwicklung einer Acetylid-Chemie der Elemente der 15. und 16. Gruppe “.