Three Strictly Identical Sites Nonadditivity of the Triplet Correlation

THREE STRICTLY IDENTICAL SITES NONADDITIVITY OF THE TRIPLET CORRELATION 

We extend here the model of Section 4.5. The adsorbent molecule can be in one of two conformations, L and H (Fig. 5.2). For simplicity, and in order to highlight the new features of this model, we assume that the direct interactions are additive [see Eq. (5.3.1)] and are also independent of the conformation of P (i.e., the ligand-hgand distances are invariant under conformational changes). Hence 

Note that Q (l) refers to / specific sites being occupied. The BI is (Ql + Qh) + 3( 2i9i, + 

Note that these are the intrinsic binding constants, i.e., they pertain to specific one, two, and three sites. 

The pair correlation is defined, in general, as a ratio of the probabilities,  

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