From quasi-one-dimensional conductors based on TCNQ salts to the first quasi-two-dimensional superconductors at ambient pressure based on BEDT-TTF triiodides

The design and the synthesis of molecular conductors leading to discovery by the Chemogolovka group of the first quasi-two-dimensional organic superconductors at ambient pressure are outlined starting with TCNQ salts followed by passing on to tetrachalcogenotetracene ones and then on to the superconductors beta-(BEDT-TTF)(2)I-3 with a critical temperatures of 1.5 K and 8.0 K. In the context with the investigations of the Chemogolovka group, the results of other groups related to the search for organic superconductors are discussed in brief as well.