Negatively curved nanographenes are considered as cutouts of three-dimensional fully sp²-hybridized carbon allotropes such as Schwarzites. Here we present the synthesis of a C(76) cut-out of the Schwarzite 8-4-1-p proposed by Lenosky et al. and investigate its optical as well as electrochemical properties. Furthermore, supramolecular interactions with fullerenes C(60) and C(70) were …