Diameter D (or size S, from Oka et al. 2001) vs. mass M for run CSFSNBF. The clumps from the simulations are in agreement with the available data from the observations of molecular clouds in the Galactic Center. The Galactic Center, however, may represent a less extreme environment than a CND formed after a gas-rich galaxy merger (Fiacconi et al. 2013). Smaller clouds are difficult to detect, which might justify the lack of observational data for clumps of sizes not larger than a few pc.