Coordination polymers based on trinuclear and mononuclear copper-pyrazolate building moieties connected by fumarate or 2-methylfumarate ions
| Autor: | Corrado Di Nicola, Enrico Forlin, Arianna Lanza, Luciano Pandolfo, Fabrizio Nestola, Federica Garau, Marta Maria Natile, Claudio Pettinari |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Stereochemistry
Supramolecular chemistry chemistry.chemical_element Pyrazole Biochemistry Catalysis Styrene law.invention Inorganic Chemistry chemistry.chemical_compound law Polymer chemistry Materials Chemistry Molecule Carboxylate Physical and Theoretical Chemistry Crystallization Organic Chemistry Isomorphous structures Trinuclear triangular Cu(II) systems Coordination Polymers Bicarboxylates Copper chemistry Copper(II) complexes |
| Zdroj: | Journal of organometallic chemistry 714 (2012): 74–80. doi:10.1016/j.jorganchem.2012.03.026 info:cnr-pdr/source/autori:Di Nicola C.; Forlin E.; Garau F.; Lanza A.; Natile M.M.; Nestola F.; Pandolfo L.; Pettinari C./titolo:Coordination polymers based on trinuclear and mononuclear copper-pyrazolate building moieties connected by fumarate or 2-methylfumarate ions/doi:10.1016%2Fj.jorganchem.2012.03.026/rivista:Journal of organometallic chemistry (Print)/anno:2012/pagina_da:74/pagina_a:80/intervallo_pagine:74–80/volume:714 |
| Popis: | By reacting water solutions of pyrazole (Hpz) with copper(II) fumarate or 2-methylfumarate in solvothermal conditions two almost identical trinuclear triangular complexes, [Cu3(μ3-OH)(μ-pz)3{R(COO)2}(Hpz)], [R = CH CH, C(CH3) CH], have been obtained. The two carboxylate groups of both fumarate and 2-methylfumarate show different arrangements, one acting as monotopic ligand while the other one has a ditopic behavior. Thus, in both cases, wavy 2D isomorphous Coordination Polymers (CPs), that further self-assemble through strong H-bonds into two 3D networks, have been obtained. When copper(II) 2-methylfumarate was reacted with pyrazole at r.t. the mononuclear [Cu(Hpz)2(H2O)(2-methylfumarate)·H2O] complex was, in addition, obtained. In this case the bridging dianions produce instead monodimensional CPs that self-assemble into supramolecular tapes mediated by H-bond interactions, involving coordinated and crystallization water molecules. The mononuclear and trinuclear species were preliminary tested as catalysts for the oxidation of styrene by H2O2. |
| Databáze: | OpenAIRE |
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