@article {doi:10.1063/1.4962221, title = {Communication: Molecular gears}, journal = {The Journal of Chemical Physics}, volume = {145}, number = {9}, year = {2016}, pages = {091101}, doi = {10.1063/1.4962221}, url = {https://aip.scitation.org/doi/abs/10.1063/1.4962221}, author = {Burnell,E. Elliott and de Lange,Cornelis A. and Meerts,W. Leo} }