Effective acetylene length dependence of the elastic properties of different kinds of graphynes

Graphyne is a planar network of connected carbon chains, each formed by n acetylene linkages. Uncountable ways to make these connections lead uncountable structural graphyne families (GFs). As the synthesis graphynes with > 1 has been reported in literature, it interest find out how their physical properties depend on for possible GF. Although literature already present specific models describe dependence elastic GFs, there not yet enough amount data different values n. Based fully atomistic molecular dynamics simulations, Young's modulus, shear linear compressibility and Poisson's ratio 10 members 7 GFs are calculated. A simple model consisting serial combination springs proposed GFs. We show that except ratio, this unique able numerically describe, good precision, modulus all graphynes, including anisotropy negative some