Synthesis of Multifunctional Charge-Transfer Agents: Toward Single-Walled Carbon Nanotubes with Defined Covalent Functionality and Preserved π System

The attachment of well-defined charge transfer agents to the surface nanomaterials is an efficient strategy control their density and also tune optical, electrical, physicochemical properties. Particularly interesting are that either donate or withdraw electrons depending on arrangements building units promise a non-destructive delicate like sp$^2$ compounds. In this work, we rationally synthesize molecular moieties with versatile functionalities. A reactive anchor group allows attach them carbon nanotubes as defined while preserving tube $\pi$-conjugation. were synthesized through stepwise nucleophilic substitution one (monosubstituted series) two chlorine (disubstituted atoms cyanuric chloride by aniline derivatives containing one, three methoxy groups in para meta positions. Variation number position electron transferring help us manipulate electronic optical properties probes SWNTs systematically. correlation between these functionality was investigated experiments quantum chemical calculations. While optoelectronic conjugated dominated segments, triazine warrants ability nondestructively SWNTs. This study step ahead towards production desired electrical covalent $\pi$-preserving functionalization.