Carbon suboxide is a metastable gaseous molecule with low melting (-112.5°C) and boiling (6.8°C) points. Its structure was recently resolved showing slight deviation from linearity and alternated charges which are the primary reason for its high reactivity, having a strongly negative charged carbon at C 2 surrounded by two positively charged carbon atoms (C 1 and C 3 ). Besides the interest in organic synthesis, carbon suboxide attracted attention also in polymer science, since the molecule readily polymerizes into poly(carbonsuboxide) or "Red Carbon" for its dark, wine red appearance. The polymer structure has been investigated, however, only few reports are available on this matter.