Chemical bonding and dynamic fluxionality of a B15+cluster: a nanoscale double-axle tank tread - Wang, Ying-Jin; You, Xue-Rui; Chen, Qiang; Feng, Lin-Yan; Wang, Kang; Ou, Ting; Zhao, Xiao-Yun; Zhai, Hua-Jin; Li, Si-Dian (Physical Chemistry Chemical Physics, 2016)