Computational chemistry journals may be a branch of chemistry that uses a framework to help in determination of chemical issues. It uses strategies of theoretical chemistry journals, incorporated into economical laptop programs, to calculate the structures and properties of molecules and solids. The strategies used cowl each static and dynamic things. Altogether cases the pc time and different resources (such as memory and disk space) increase speedily with the dimensions of the system being studied. That system may be one molecule, a bunch of molecules, or a solid. Machine chemistry strategies vary from extremely correct to terribly approximate; extremely correct strategies area unit usually possible just for little systems.