ИСТИНА

Nowadays great attention of research chemists is paid to materials used as "organic electronics". Usually the main objects of study in this area are organic compounds containing a system of conjugated carbon-carbon bonds. However, recently molecules containing non-carbon chain atoms, such as Ge, Si, Sn (E), attract significant attention. Electrons of the single E-E bond are delocalized over the entire chain of atoms of elements (σ-conjugation). Thus, the existence of σ-delocalization in oligogermanes and related compounds leads to the appearance of properties which are characteristic for unsaturated hydrocarbons (conductivity, thermochromism, non-linear optical properties etc.). In our scientific group we investigated the synthesis and properties of oligogermanes and related derivatives containing various substituents (electron withdrawing/electron donor groups with different volume). P195, 388; book of abstacts, p.127