The electronic structure of (2-X-5-M-DCNQI)2Cu

Changes in Metallicity and Electronic Structure Across the Surface Ferroelectric Transition of Ultrathin Crystalline Poly(vinylidene Fluoride-Trifluoroethylene) Copolymers

“…This is, however, quite unlike other large crystaline molecular systems. The Cu-based dicyanoqinonediimine has a structure-dependent gap with the single crystals conducting down to 1.2 K [15] but the amorphous molecular films exhibit a semiconducting gap [16].…”

Multilayer Formation of Copper Ions (Cu2+) Deposited onto Self-Assembled Monolayers of Alkanedithiols on Au (111) Surfaces

“…Experimentally, Cu (MVV) at 932.3 eV and without another peak accompanying with Cu2p indicates that Cu formed RSCu and presented in the +1 oxidation state. 8,9,[16][17][18] In our experimental observation, the chlorine element (Cl2p) signal was never found, which demonstrated further that the Cu signal originated only from the multilayer structure. The multilayer system formed by 1,5-pentanedithiol was characterized in the same way.…”

The conductivity of alloyed radical anion salts : 2,5-disubstituted DCNQI's with copper-counterions

“…This similarity is even more pronounced for the alloys of (Me, Me )2Cu with (Cl, Me )2Cu and (Br, Me )2Cu if we take into account their room temperature conductivity of 100 Scm-1 and their rounded «T)-curve as well. 4. Discussion.…”

“…These exceptional features of the Cu-salts can be explained by an admixture of Cu-states to the Id conduction band on the anion stack, as has been directly demonstrated by UVphotoelectron spectroscopy [4]. As a consequence of this admixture, the limitations of Id transport (localization of the charge carriers by impurities or correlation effects etc.)…”