Forty years of theory-inspired experiments on charge-transfer via solutions and electrodes: the Georgian accents.

GEORGIA; RUSSIA

This scholarly review, which also contains some specific historical details, is written by a few of researchers representing two generations succeeding the outstanding Georgian-born academic Prof. Revaz Dogonadze (1931–1985), who after becoming the world-renowned scientist in the field of condensed-phase (polar medium) charge-transfer theory, had returned from Russia to Georgia aiming at founding the first unit of the abovementioned profile (named as Department of Theoretical Research) at the Georgian National Academy of Sciences in 1978. Like some other great representatives of the world's academic elite, he devoted himself not only towards the scientific progress as such, but also to the direct international transfer and further cultivation of a brand-new scientific knowledge and the development of new academic infrastructures in his home country being in need for such an aid. Following the general thematicity of the current triple edition, and in the context of our own scientific expertise and respective past and recent contributions, we will specifically focus on some experimental efforts of nearly last 4 decades, inspired by preceding strong influential contacts of some of us with R. Dogandze, during the transition period before and after his move to Georgia and also the period before 1985 (the date of his untimely depart). Here, we will consider most conspicuous/accomplished experimental undertakings which were either designed in Georgia (in line, or following the ideas and spirit of R. Dogonadze), and performed there, at least, partially. Results of three types of long-term investigations (including the cross-testing experimental series laterally undertaken also at different laboratories worldwide) will be considered comprising three types of charge transfer events in polar media, involving dissolved redox-active reagents and/or electrodes, along with their supporting electrolyte solutions (acting as respective responsive media). In each of all three exemplary cases described below, the main ambition for the experimental design was a first-time disclosure of a certain notable theoretically predictable manifestation. The specific topics include the following: (1) first-time observations and systematic studies of optically-induced electron transfer involving symmetric/asymmetric couples of "free" cyano-metallate species; (2) the heterogeneous thermal electron exchange between redox-active metallo-complexes and bare/modified electrodes; (3) the first time demonstration of coherent multi-electron/hole heterogeneous thermal exchange between two isolated charge carrier layers emerging in hybrid interfacial quasi-2D self-assembled devices. [ABSTRACT FROM AUTHOR]

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