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| After the explanation of [[van der Waals force]]s by [[Fritz London]] several scientists soon realised that his definition could be extended from the interaction of two [[molecule]]s with induced [[dipole]]s to macro-scale objects by summing all of the forces between the [[molecule]]s in each of the bodies involved. The theory is named after [[H. C. Hamaker]] who derived the interaction between two spheres, a sphere and a wall, and presented a general discussion in a heavily cited 1937 paper.<ref>Hamaker, H. C. (1937) The London – van der Waals attraction between spherical particles. ''Physica'' '''4'''(''10''), 1058–1072. {{doi|10.1016/S0031-8914(37)80203-7}}</ref>
| | The title of the writer is Jayson. What me and my family love is to climb but I'm thinking on beginning something new. Mississippi is where his home is. My day occupation is a travel agent.<br><br>Here is my site ... [http://bigpolis.com/blogs/post/6503 clairvoyance] |
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| The interaction of two bodies is then treated as the pairwise interaction of a set of ''N'' molecules at positions: ''R<sub>i</sub>'' {''i'':1,2,... ...,''N''}. The distance between the molecules ''i'' and ''j'' is then:
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| : <math> R_{ij} = |R_i - R_j|</math>
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| The interaction energy of the system is taken to be:
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| : <math>V_{\mathrm{int}}^{1,2,...N} = \frac{1}{2}\sum_{i=0}^\N \sum_{j=0(\ne i)}^\N V_{\mathrm{int}}^{ij}(R_{ij})</math>
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| where <math>V_{\mathrm{int}}^{ij}</math> is the interaction of molecules ''i'' and ''j'' in the absence of the influence of other molecules.
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| The theory is however only an approximation which assumes that the interactions can be treated independently, the theory must also be adjusted to take into account [[Perturbation theory (quantum mechanics)|quantum perturbation theory]].
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| ==References==
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| {{reflist}}
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| {{BranchesofChemistry}}
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| {{DEFAULTSORT:Hamaker Theory}}
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| [[Category:Physical chemistry]]
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| [[Category:Intermolecular forces]]
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| {{chemistry-stub}}
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Latest revision as of 05:48, 24 August 2014
The title of the writer is Jayson. What me and my family love is to climb but I'm thinking on beginning something new. Mississippi is where his home is. My day occupation is a travel agent.
Here is my site ... clairvoyance