10.1021/ja409785a.s006 Masaki Nishio Masaki Nishio Norihisa Hoshino Norihisa Hoshino Wataru Kosaka Wataru Kosaka Tomoyuki Akutagawa Tomoyuki Akutagawa Hitoshi Miyasaka Hitoshi Miyasaka Carrier Concentration Dependent Conduction in Insulator-Doped Donor/Acceptor Chain Compounds American Chemical Society 2013 TCNQ doping 2II P units carrier Concentration Dependent Conduction DA dopant framework valency 2013-11-27 00:00:00 Dataset https://acs.figshare.com/articles/dataset/Carrier_Concentration_Dependent_Conduction_in_Insulator_Doped_Donor_Acceptor_Chain_Compounds/2349160 On the basis of the concept that the design of a mixed valence system is a key route to create electronic conducting frameworks, we propose a unique idea to rationally produce mixed valency in an ionic donor/acceptor chain (i.e., D<sup>+</sup>A<sup>–</sup> chain). The doping of a redox-inert (insulator) dopant (P) into a D<sup>+</sup>A<sup>–</sup> chain in place of neutral D enables the creation of mixed valency A<sup>0</sup>/A<sup>–</sup> domains between P units: P–(D<sup>+</sup>A<sup>–</sup>)<sub><i>n</i></sub>A<sup>0</sup>–P, where <i>n</i> is directly dependent on the dopant ratio, and charge transfer through the P units leads to electron transport along the framework. This hypothesis was experimentally demonstrated in an ionic DA chain synthesized from a redox-active paddlewheel [Ru<sub>2</sub><sup>II,II</sup>] complex and TCNQ derivative by doping with a redox-inert [Rh<sub>2</sub><sup>II,II</sup>] complex.