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Synthesis and characterization of Cu(II) complexes of pyrazine-2,3-dicarboxylicacid |
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| Authors: | Sülin Ta?c?o?lu Adnan Ayd?nBahattin Yalç?n Esra Kak?Ömer Andaç Orhan BüyükgüngörBa?ak Ko?ar |
| Institution: | a Marmara Üniversitesi, Fen-Edebiyat Fakültesi, Kimya Bölümü, Göztepe, ?stanbul, Turkey b Ondokuzmay?s Üniversitesi, Fen-edebiyat Fakültesi, Kimya Bölümü, Atakum, Samsun, Turkey c Ondokuzmay?s Üniversitesi, Fen-edebiyat Fakültesi, Fizik Bölümü, Atakum, Samsun, Turkey d Sinop Üniversitesi, E?itim Fakültesi, Sinop, Turkey |
| Abstract: | Four copper(II) coordination polymers, {Cu(pz(COO)2)(H2O)]4·HBr}n (1), {Cu(pz(COO)2)(NH3)2]·H2O}n (2), {Cu3H2(pz(COO)2)4(H2O)3]·2H2O}n (3) and {Cu2(pz(COO)2)2(NH3)2(H2O)3]Cu(pz(COO)2)(NH3)(H2O)2]Cu(pz(COO)2)(NH3)(H2O)]·2H2O}n (4) were synthesized using pyrazine-2,3-dicarboxylic acid, CuBr2, 2-(2-aminoethylamino)ethanol/triethanol amine/ammonia in a methanol:water (1:1) solution, and the mixed ligand complexes were characterized by spectroscopic methods, thermal and elemental analysis, and magnetic susceptibility. Complexes 2 and 4 were also characterized by means of single crystal X-ray crystallography. The characterizations show that the complexes have polynuclear molecular structures, except for complex 2, and all of the complex structures form polymeric chains. Complex 4 has a pseudo-merohedral twin structure. |
| Keywords: | Pyrazine-2 3-dicarboxylic acid Copper(II) bromide complexes Copper(II) mixed ligand complexes Twin structure |
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