Synthesis and Properties of Glass-Forming Hydrazones II [1]. Hydrazones Containing Bicarbazolyl Units |
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Authors: | Jolita Ostrauskaite Viktoras Voska Juozas V. Grazulevicius |
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Affiliation: | (1) Department of Organic Technology, Kaunas University of Technology, LT-3028 Kaunas, Lithuania, LT |
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Abstract: | Summary. A series of new glass-forming hydrazones containing bicarbazolyl units were synthesized starting from 9-(2-(9H-carbazol-9-yl)-cyclobutyl)-9H-carbazole and 9-(6-(9H-carbazol-9-yl)-hexyl)-9H-carbazole, and their thermal properties were studied. The correlation between their inclination to form glasses and their chemical structures are discussed. The results of a preliminary investigation of the photoelectric properties of amorphous films of the title compounds are briefly reported. The highest hole drift mobility was observed for 9-(2-(9H-carbazol-9-yl)-cyclobutyl)-9H-carbazole-3-carbaldehyde N,N-diphenylhydrazone; at high electric fields, it approaches 1 · 10−3 cm2/Vs. Received September 17, 2001. Accepted (revised) October 16, 2001 |
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Keywords: | . Heterocycles Molecular glasses Ionization potential Charge transport. |
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