Covalent Bisfunctionalization of Two‐Dimensional Molybdenum Disulfide
Xin Chen, Cian Bartlam, Vicent Lloret, Narine Moses Badlyan, Stefan Wolff, Roland Gillen, Tanja Stimpel‐Lindner, Janina Maultzsch, Georg S. Duesberg, Kathrin C. Knirsch, Andreas Hirsch
Abstract
Abstract Covalent functionalization of two‐dimensional molybdenum disulfide (2D MoS 2 ) holds great promise in developing robust organic‐MoS 2 hybrid structures. Herein, for the first time, we demonstrate an approach to building up a bisfunctionalized MoS 2 hybrid structure through successively reacting activated MoS 2 with alkyl iodide and aryl diazonium salts. This approach can be utilized to modify both colloidal and substrate supported MoS 2 nanosheets. We have discovered that compared to the adducts formed through the reactions of MoS 2 with diazonium salts, those formed through the reactions of MoS 2 with alkyl iodides display higher reactivity towards further reactions with electrophiles. We are convinced that our systematic study on the formation and reactivity of covalently functionalized MoS 2 hybrids will provide some practical guidance on multi‐angle tailoring of the properties of 2D MoS 2 for various potential applications.