Carbon nanotubes, graphite, and graphene have a number of fascinating electric, thermal, and mechanical properties. However, their applications often require physical adsorption or covalent attachment of chemical entities. Covalent chemical modification method is desired due to the high stability of the resulting modified carbon nanomaterials, but is particularly challenging due to the limited reactivity of the extended conjugated pi-system. We have thus applied the inverse electron demand Dies-Alder reaction (IEDDA) to the modification of single-wall carbon nanotubes (SWCNT) and highly ordered pyrolytic graphite (HOPG). Tetrazine-derivatized molecules or tetrazine-capped metal nanoparticle/nanorods are shown to react with these sp<sup>2</sup> hybridized carbon nanomaterials under ambient conditions. Site-specific modification is also achieved using tetrazine deterivatives as the “ink” for microcontact printing.

Inverse electron demand Diels-Alder reaction for surface modification of sp<sup>2</sup> hybridized carbon nanomaterials

256th National Meeting (2018)

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Inverse electron demand Diels-Alder reaction for surface modification of sp2 hybridized carbon nanomaterials

Inverse electron demand Diels-Alder reaction for surface modification of sp² hybridized carbon nanomaterials