"purpose of explaining" is an correct and usable phrase in written English.
You could use it in a sentence such as: "This report is written with the purpose of explaining the results of our survey."
One purpose of explaining behavior by reference to "basic human psychology" is to naturalize it.
Although it is often stated that chemistry has been "reduced to physics" in this way, it should be pointed out that one of the most important postulates of quantum mechanics was introduced primarily for the purpose of explaining chemical facts and did not originally have any other physical justification.
They seemed invented solely for the purpose of explaining the experimental results.
Many factors have been considered for the purpose of explaining the scarcity of bank financing by SMEs.
Some of them view science as a product of knowledge for the purpose of explaining natural phenomena.
A causal field is a cognitive artefact, a collection of objects assembled with the sole purpose of explaining why a particular effect came about.
(The following, for the purposes of explaining the theory, assumes away the fact that coaches can get a hint of what the other side plans by how its players line up. These hints are imperfect, by design.
Admittedly, I haven't actually seen either of those items being worn by a single human being who isn't being photographed for the purposes of explaining that the cravat and smoking jacket are back, but never mind: the others are probably at home, busting a gut at the comparethemarket.com adverts while dressed like Noël Coward.
In classical genetics, all examples of complete dominance are treated alike for the purposes of explaining transmission phenomena.
This may all seem obvious, but banks do a poor job of explaining their purpose.
Prior to start of interview data collector's verbal consent shall be sought and purpose of visit explained.
