Abstract Two moieties of mono-and trimethincyanines as well as those of styryl dyes were connected by a saturated alkyl tether made from compounds 3 a–c, 5, 7, and 9 a, b. In most cases, cyclic voltammetry and spectroelectrochemistry for these dyes together with the data for their monomeric models 4, 6, 8, and 10 reveal electrochemically irreversible transfer of two electrons but chemically reversible reaction and discoloration both on reduction and ...
![4-[C-[4-(dimethylamino)phenyl]carbonohydrazonoyl]-N,N-dimethylaniline Structure](https://image.chemsrc.com/caspic/127/65111-92-4.png)