van der Waals force (redirected fromVan der Waals interactions) Medical Encyclopedia van der Waals force n. A weak, short-range attractive force between atoms or molecules caused by their dipole moments, often arising in otherwise nonpolar atoms or molecules from a temporary shift of orbital electr...
Van der Waals interactions are universally present interactions which always appear when two molecules come close to each other. They are considered as weak attractive interactions which become appreciable only when the interacting molecules are neutral and non-polar. Van der Waals interactions do take...
(1978) Repulsive Van Der Waals interactions: their role in various separation methods. Separat. Purif. Methods 7, 245- 271.Oss, C.J. van; Neumann, A.W.; Omenyi, S.N.; Absolom, D. R.: Repulsive van der Waals interac- tions: their role in various separation methods. Sep. Purif. ...
van der Waals interactions between atoms and dielectric surfaces are reinvestigated. To describe the nonretarded interaction potential between a dispersive dielectric surface and an atom in an arbitrary internal energy state, we derive a general expression in terms of an integral, over real frequency,...
Van Der Waals London interactions【机】 范得瓦-伦敦相互作用 Van der Waals attraction范德瓦耳斯引力 van der Waals radius【化】 范德瓦耳斯半径; 范德华半径 Van Der Waals attraction【机】 范得瓦力 johannes van der waalsn. (= Johannes Van Der Waals) 约翰内斯·范德瓦耳斯 ...
van der Waals interactions (London dispersion forces)范德瓦尔斯(伦敦色散力相互作用)论文 总结 英语 资料 ppt 文档 免费阅读 免费分享,如需请下载! 文档格式: .doc 文档大小: 41.5K 文档页数: 2页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: ...
We formulate and evaluate the van der Waals part of the free energy due to a dielectric profile that varies continuously throughout the space between two interacting bodies. Not considering the work needed to create the inhomogeneous dielectric profile, focusing only on that part of the free energ...
The van der Waals interactions between two parallel graphitic nanowiggles (GNWs) are calculated using the coupled dipole method (CDM). The CDM is an efficient and accurate approach to determine such interactions explicitly by taking into account the discrete atomic structure and many-body effect. ...
A calculation of the van der Waals contribution to the physisorption energy is performed for molecules interacting with small metallic spheres. The induction contribution is introduced by using the first field gradient susceptibilities of the sphere at zero frequency. In order to illustrate the non ...
Then we go through some common structures and present illustrating examples; the examples involve gold spheres, spherical gold cavities, spherical graphene shells, and lithium atoms. We furthermore rederive the van der Waals interaction between two atoms by comparing the full result in the diluted ...