Structure and magnetic characterization of tetranuclear closed/double-open cubane core, and 1D polynuclear copper(II) complexes
| Autor: | Albert Figuerola, Aparup Paul, Ennio Zangrando, Subal Chandra Manna |
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| Přispěvatelé: | Manna, S. C., Paul, A., Zangrando, E., Figuerola, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Polymers
Supramolecular chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Ion Inorganic Chemistry chemistry.chemical_compound Magnetic properties Materials Chemistry 1D coordination polymer Closed-cubane Copper(II) Double-open-cubane Antiferromagnetism Chelation Physical and Theoretical Chemistry Coure Schiff base Chemistry Propietats magnètiques 021001 nanoscience & nanotechnology Condensed Matter Physics Copper 0104 chemical sciences Electronic Optical and Magnetic Materials Polímers Core (optical fiber) Crystallography Cubane Ceramics and Composites 0210 nano-technology |
| Zdroj: | Dipòsit Digital de la UB Universidad de Barcelona |
| Popis: | Three copper(II) complexes namely [Cu4(L1)4]·0.5(H2O) (1), [Cu4(L2)2(HL2)2(H2O)2](sq)·H2O (2) and {[Cu2(L2)2(tp)]·(H2O)}n (3) (H2L1 = [(E)-2-((1-hydroxybutan-2-ylimino)methyl)phenol], H2L2 = [(E)-2-((1-hydroxybutan-2-ylimino)methyl)-6-methoxyphenol], sq = squarate and tp = terephthalate ion) have been characterized by structure determination and magnetic analysis. Both 1 and 2 are tetranuclear Cu4O4 species with closed cubane core and double-open cubane like core structure, respectively. On the other hand complex 3 is a 1D polymeric chain, where Schiff base chelated dinuclear copper units are linked through terephthalate ions. C-H…π interactions among the 1D polymeric chains form a 2D supramolecular architecture. Variable temperature magnetic property study indicates overall antiferromagnetic exchange coupling in all complexes. |
| Databáze: | OpenAIRE |
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