Syntheses and investigation of thermal properties of copper complexes with azo-containing Schiff-base dyes |
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| Affiliation: | 1. Department of Chemistry, Payam Noor University-Tabriz Center, Emamieh, Hakim Nezami Street, Tabriz, Iran;2. Department of Chemistry, Faculty of Science, Azarbaijan University of Tarbiat Moallem, Tabriz, Iran;1. Chemistry Department, University College for Girls, Ain Shams University, Cairo, Egypt;2. Chemistry Department, Faculty of Science, Taibah University, Almadinah Almunawrah, Saudi Arabia;1. Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz 53714-161, Iran;2. Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz 53714-161, Iran;3. Organic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran;1. Department of Chemistry, Universidad de Oriente, Cumana 6101, Venezuela;2. Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile;1. Centre for Energy Studies, National Engineering College, K.R.Nagar, Kovilpatti 628503, Thoothukudi District, Tamil Nadu, India;2. Chemistry Research Centre, National Engineering College, K.R.Nagar, Kovilpatti 628503, Thoothukudi District, Tamil Nadu, India |
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| Abstract: | In the present study a series of azo dyes: 5-((4-pentyloxyphenyl)azo)-salicylaldimine-N-R (R = phenyl, 4-methoxyphenyl, cyclohexyl) and related copper(II) bis chelates have been synthesized and characterized by IR, NMR, mass spectroscopies and elemental analyses. The thermal stability of free ligands and related copper(II) bis(chelate) was studied by using differential scanning calorimetry (DSC) and thermogravimetric analyses (TGA). The differences in the thermal stability were related to the structure of free ligands and copper complexes and decomposition products were characterized according to their X-ray diffraction pattern. |
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