Substituted group-directed assembly of six coordination compounds based on pyrazole bifunctional ligands
| Autor: | Lei Shen, Dunru Zhu, Qing Liu, Qian-Qian Ma, Tian-Tian Jia, Yue Xu, Jie Yang, Ting Zhu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Infrared spectroscopy General Chemistry Pyrazole 010402 general chemistry 01 natural sciences Magnetic susceptibility 0104 chemical sciences Coordination complex Metal Crystallography chemistry.chemical_compound chemistry visual_art Pyridine visual_art.visual_art_medium Bifunctional Luminescence |
| Zdroj: | Journal of the Iranian Chemical Society. 15:637-647 |
| ISSN: | 1735-2428 1735-207X |
| DOI: | 10.1007/s13738-017-1264-0 |
| Popis: | Six new complexes [Mn8(μ4-O)4(phpz)8(MeOH)4]·(MeOH)(H2O) (1) [Co2(HphpzH)(Hphpz)2(phpz)2]·4(MeOH) (2), Ni(Hphpz)2 (3), [Ni(Hphpz)2]·H2O (4), [Zn4(pzpy)4Cl4] (5) and [Cu2(pzpy)2(HCO2)2(H2O)2] (6) have been synthesized by hydrothermal reactions of MCl2·4H2O (M = Mn, Co, Ni, Zn or Cu) with 5-(2-hydroxyphenyl)-3-pyrazole (HphpzH) or 2-(1H-pyrazol-3-yl)pyridine (Hpzpy). The complexes were characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Complex 1 is an octanuclear Mn(III) cluster, complexes 2 and 6 are binuclear Co(III) and Cu(II), respectively, complexes 3 and 4 are isomorphous mononuclear species, while complex 5 is a tetranuclear Zn(II) cluster. The magnetic behavior of complex 1 was investigated. Magnetic susceptibility measurements revealed antiferromagnetic exchange interactions between the metal centers in the clusters. The luminescence properties of the complexes were investigated at room temperature in the solid state. |
| Databáze: | OpenAIRE |
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