1313574-83-2Relevant academic research and scientific papers
Discotic nickel bis(dithiolene) complexes - Synthesis, optoelectrochemical and mesomorphic properties
Bui, Thanh-Tuan,Thiebaut, Olivier,Grelet, Eric,Achard, Marie-France,Garreau-De Bonneval, Benedicte,Moineau-Chane Ching, Kathleen I.
experimental part, p. 2663 - 2676 (2011/08/02)
Fifteen neutral long-chain-substituted discotic nickel bis(1,2-diphenyl-1, 2-ethenedithiolene) complexes [Ni(dpedt)2], including thirteen new compounds, have been synthesized by new short and efficient synthetic pathways. Physical investigations show that these complexes are thermally stable, possess good electron-accepting properties, and absorb light strongly in the near-infrared spectral region. Electrochemical and optical properties of [Ni(dpedt)2] depend moderately on the functionalities attached to the phenyl rings of the complexes. Their LUMO and HOMO energy levels are in the range -4.7 to -5.0 and -5.7 to -6.0 eV, respectively. Two octa(n-alkoxy)- substituted complexes exhibit a columnar liquid crystalline phase with hexagonal symmetry. These highly soluble complexes are potential candidates for use as electron-accepting and electron-transporting materials for active layers in organic electronic applications, such as field-effect transistors or photovoltaic devices. Electrochemical and optical studies as well as multiphase transition behavior are reported for a series of new nickel bis(dithiolene) complexes. The effects of the nature and position of the functional groupsattached to the periphery of the complexes are investigated. X-ray diffraction measurements regarding the hexagonal columnar mesophase are reported. Copyright
