The interaction energy for two adjacent adamantane molecules and that of adamantane molecules encapsulated inside carbon nanotubes are investigated considering only dipole-dipole induced interaction. The Lennard-Jones potential and the continuous approximation are utilised to derive analytical expressions for these interaction energies. The equilibrium distance 3.281 Å between two adamantane molecules is determined. The smallest carbon nanotube radius b₀$b_0$ that can encapsulate the adamantane molecule and the radius of the tube b_max$b_{\mathit{max}}$ that gives the maximum suction energy, linearly depend on the adamantane radius, are calculated. For larger diameter tubes, the off axis position has been calculated, and equilibrium distance between molecule and tube wall is found to be close to the interlayer spacing in graphene.

仅考虑偶极-偶极诱导的相互作用，研究了两个相邻的金刚烷分子和封装在碳纳米管中的金刚烷分子的相互作用能。利用Lennard-Jones势和连续逼近来得出这些相互作用能的解析表达式。确定两个金刚烷分子之间的平衡距离3.281Å。最小碳纳米管半径b ₀$b_0$可以封装金刚烷分子和管的半径b _max$b_{\mathit{最大限度}}$计算得出最大吸能的线性关系取决于金刚烷半径。对于较大直径的管，已计算了离轴位置，并且发现分子与管壁之间的平衡距离接近石墨烯中的层间间距。