  New monolayer 2D carbon structures, namely qHPC60 and qTPC60, were recently
synthesized by covalently bonding C60 polymers. Here, we carried out Reactive
(ReaxFF) molecular dynamics simulations to study the thermodynamic stability
and fracture patterns of qHPC60 and qTPC60. Our results showed that these
structures present similar thermal stability, with sublimation points of 3898K
and 3965K, respectively. qHPC60 and qTPC60 undergo an abrupt structural
transition becoming totally fractured after a critical strain threshold. The
crack propagation is linear (non-linear) for qHPC60 (qTPC60). The estimated
elastic modulus for qHPC60 and qTPC60 are 175.9 GPa and 100.7 GPa,
respectively.
