Mass spectrum of C58-195 was recorded on a conventionally built laser-probe time-of-flight mass spectrometer. From the spectrum, 2 C clusters, C60 and C180 have dominant ion intensities over clusters of other sizes. Like C60, C180 has a structure with Ih symmetry and closed electronic shell.

Key words: MASS SPECTROGRAPHY, CARBON, CLUSTER COMPOUND, GRAPHITE, CONFIGURATION, TIME-OFF FLIGHT MASS SPECTROMETRY