Abstract
As a part of a wide plan concerning the novel organic materials, a set of newly organic semiconductors has been obtained in our laboratories. In this paper, a clear overview was reported for elucidating the preparation processes of the chromium−copper mixed crystals. In line with the novel pyrazole diphenylphosphino-methane (M-dppm) derivatives, two mixed organic semiconductors were obtained: the one cupper apyrazole ring compound 5a, C78H74CrCuN4O3P4 (1CR-dppm) and the two cupper apyrazole ring compound 6a, C78H74CrCu2N4O4P4 (2CR-dppm). The structure of the obtained crystals were examined by the X−ray diffraction, and the structures of the two mentioned compounds were discussed based on elemental analysis (EA), IR, 1H NMR, 31P NMR spectroscopic data, and fast atom bombardment mass spectra. The compounds under investigation show typical semiconductor behavior due to of delocalization of the π-electrons in the structure. The temperature dependence of charge transports and optical parameters for the 5a crys...
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