Molecular logic function

Having shown that the weighting coefficient (A) of the term giving the contribution of an ionic structure to the molecular wave function is related to the dipole moment of the molecule, it is logical to expect that equations could be developed that relate the ionic character of a bond to the electronegativities of the atoms. Two such equations that give the percent ionic character of the bond in terms of the electronegativities of the atoms are... 

G. Ashkenazy, Biochemical molecular logic systems structure and function, M.Sc. thesis, Technion (Israel Instimte of Technology), Haifa, Israel, 1992. 

Gunnlaugsson, T. Donall, A. M. D. Parker, D. Luminescent molecular logic gates the two-input inhibit (INH) function. Chem. Commun. 2000, 93-94. 

Synthetic flavylium compounds can exist in several forms (multistate), which can be interconverted by more than one type of external stimulus (multifunctional). The intricate network made up by their reactions, when examined from the viewpoints of molecular level devices and molecular level logic functions , reveals that these systems exhibit very interesting properties. 

A terbium complex (Figure 5.13) is a molecular logic gate corresponding to a two-input INHIBIT function the output (a terbium emission line) is observed only when the inputs , the presence of proteins and the absence of oxygen, are both satisfied. 

---