Full Idea
I take it as obvious that any structural property involves dispositionality and, therefore, cannot be used to 'explain' dispositionality.
Gist of Idea
Structural properties involve dispositionality, so cannot be used to explain it
Source
C.B. Martin (The Mind in Nature [2008], 04.3)
Book Reference
Martin,C.B.: 'The Mind in Nature' [OUP 2008], p.39
A Reaction
I think this is the right way round. The so-called 'categorical' properties seem to be close in nature to the 'structural' properties.