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Electronic and optical properties of new synthesized TTF-based azine derivatives – Experimental and theoretical study

Abstract : The synthesis and detailed characterization of two tetrathiafulvalene-appended azine derivatives, namely 2-([2,2′-bi(1,3-dithiolylidene)]-4-yl)-6-((2,4-dimethylphenyl)hydrazono) methyl)pyridine (L1) and 5-([2,2′-bi(1,3-dithiolylidene)]-4-yl)-2-((2,4-dimethylphenyl)hydrazono) methyl)pyridine (L2) are described. The crystal structure of ligand L2 indicates that the mentioned molecule is completely planar with the presence of a strong intramolecular N1 [single bond] H1⋯N3 hydrogen bonding. The quantum chemical calculations show that the intermolecular interaction in crystal structure does not affect the HOMO and LUMO orbitals present in isolated molecule. The optical properties of these ligands indicate the presence of intramolecular charge transfer band in the case of ligand L2 while the electrochemical behavior of the two compounds indicates that they are valuable candidates for the construction of crystalline radical cation salts.
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https://hal.univ-angers.fr/hal-02564424
Contributeur : Okina Université d'Angers <>
Soumis le : mardi 5 mai 2020 - 20:29:34
Dernière modification le : mardi 25 août 2020 - 11:58:02

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Awatef Ayadi, Lucia Mydlova, Nabil Zouari, Malgorzata Makowska-Janusik, Bouchta Sahraoui, et al.. Electronic and optical properties of new synthesized TTF-based azine derivatives – Experimental and theoretical study. Optical Materials , 2016, 56, pp.27-35. ⟨10.1016/j.optmat.2016.01.054⟩. ⟨hal-02564424⟩

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