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 SM ISO690:2012COSTES, Jean-Pierre, NOVIŢCHI, Ghenadie, ŞOVA, Sergiu, DAHAN, Francoise, DONNADIEU, Bruno, TUCHAGUES, Jean-Pierre M.. Synthesis, structure, and magnetic properties of heterometallic dicyanamide-bridged Cu-Na and Cu-Gd one-dimensional polymers. In: Inorganic Chemistry, 2004, vol. 43, pp. 7792- 7799. ISSN 0020-1669. DOI: https://doi.org/10.1021/ic048942i |
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  Inorganic Chemistry |
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| Volumul 43 / 2004 / ISSN 0020-1669 | ||||||
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| DOI:https://doi.org/10.1021/ic048942i | ||||||
| Pag. 7792- 7799 | ||||||
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The monometallic precursors L1Cu and L2Cu (L 1H2 standing for 1,3-bis((3-ethoxysalicylidene)amino) propane and L2H2 standing for 1,2-bis((3- methoxysalicylidene)amino) ethane) react with sodium dicyanamide (dca) (NaN 3C2), a mixture of gadolinium nitrate, and sodium dicyanamide to yield heterodinuclear L2CuNa(NCNCN) and L 1CuGd-(NO3)(NCNCN)2 entities. The structural determination shows that two Cu-Na entities are linked by dca with an original μ1,1 coordination mode, evidenced here for the first time, to yield tetranuclear complexes. Two hydrogen bonds operate between the water molecule coordinated to one of the sodium ions and the free nitrogen atoms of two dca ligands, yielding infinite zigzag chains. The structural determination of the Cu-Gd entities indicates that they are held together by two dca ligands, bridging alternately Cu to Gd and Gd to Gd cations, in the more common μ1,5 mode to yield a one-dimensional (1D) network. The dca ligands are not able to transmit interaction between the magnetically active centers in these chains, which are the unique example of structurally characterized Cu-Gd complexes involving dca ligands. |
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| Cuvinte-cheie EMTREE drug terms 1, 2 bis[(3 methoxysalicylidene)amino]ethane, 1, 3 bis[(3 ethoxysalicylidene)amino]propane, alkane derivative, copper complex, Gadolinium, Ligand, polymer, sodium derivative, unclassified drug EMTREE medical terms article, Chemical analysis, chemical bond, chemical interaction, chemical reaction kinetics, chemical structure, hydrogen bond, magnetism, physical chemistry, Quantum yield, reaction analysis, structure analysis |
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