Characterization of amorphous substances by studying isotopically labelled compounds with FAB–MS: evidence for extrusion of triangular Mo 3 IV clusters from a mixture of 92 MoS 3 and 100 MoS 3 by reaction with OH –

As the extrusion of 92Mo3 and 100MO3 cluster species is the absolutely dominating pathway for the reaction of a mixture of amorphous 92MoS3 and 100MoS3 with an aqueous solution of KOH, it can be concluded that the material is built up by Mon(n 3) cluster units.