Synthesis, structures and magnetic properties of three copper(II) complexes of 2-(1H-pyrazol-3-yl) pyridine
| العنوان: | Synthesis, structures and magnetic properties of three copper(II) complexes of 2-(1H-pyrazol-3-yl) pyridine |
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| المؤلفون: | Yu-Ying Mao, Wen-Hao Wu, Guang-Zhou Zhu, Jia-Xin Cao, Jing-Hang Zhang, Bei-Bei Liang, Shuang-Quan Zheng, Jun-Qian Chen, Feng-Lei Yang |
| المصدر: | Transition Metal Chemistry. 43:211-220 |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 010405 organic chemistry, Ligand, Metals and Alloys, chemistry.chemical_element, Pyrazole, 010402 general chemistry, 01 natural sciences, Copper, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, Deprotonation, chemistry, Pyridine, Materials Chemistry, Chelation, Organometallic chemistry, Coordination geometry |
| الوصف: | Three Cu(II) complexes: [Cu2(μ-L)2(HCOO)2(H2O)2] (1), [Cu2(μ-L)2(NO3)2] (2), and [Cu4(μ-L)6(CH3COO)2]·2H2O (3) constructed from 2-(1H-pyrazol-3-yl) pyridine (HL) were synthesized and structurally characterized by X-ray single-crystal diffraction. The X-ray analyses revealed that all three complexes feature a di-ligand-bridged Cu2 unit, which is nearly planar. Each deprotonated ligand chelates one copper atom by means of N,N(pyridine-pyrazole) pocket and simultaneously bridges the other one by the N,N(pyrazole) groups. The remaining coordination sites of the Cu(II) centers are either occupied by different anionic coligands to balance the charge, or bridged by another L to develop a tetranuclear structure. Magnetic investigations reveal that the distortion of the Cu(II) coordination geometry (as described by the τ values) and the coplanarity of the Cu–(N=N)2–Cu unit have cooperative effects on the antiferromagnetic strength of these systems. |
| تدمد: | 1572-901X 0340-4285 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::319912a7c0d07406ecba433e6923045f https://doi.org/10.1007/s11243-018-0202-z |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........319912a7c0d07406ecba433e6923045f |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1572901X 03404285 |
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