التفاصيل البيبلوغرافية
| العنوان: |
A 1D coordination polymer built on asymmetric μ1,1,3-azide bridge: from unusual topology to magnetic properties and Cu(ii)/Cu(i) redox reversibility. |
| المؤلفون: |
Tommasino, Jean-Bernard1, Chastanet, Guillaume2, Guennic, Boris Le3,4, Robert, Vincent3,5, Pilet, Guillaume1 |
| المصدر: |
New Journal of Chemistry. Nov2012, Vol. 36 Issue 11, p2228-2235. 8p. |
| مصطلحات موضوعية: |
*AZIDES, *POLYMER research, *AMMONIA, *OXIDATION-reduction reaction, *ION exchange (Chemistry) |
| مستخلص: |
An azide-bridged Cu(ii) one dimensional polymer was synthesized in a one pot reaction in the presence of ammonia. The refined crystal structure evidenced the unusual asymmetric μ1,1,3 coordination mode of the azide ion leading to a {Cu(μ1,1,3-N3)(μ1-N3)(NH3)0.8(H2O)1.2}n chain. The redox process of this complex was studied by cyclic voltammetry evidencing the Cu(ii)/Cu(i) reversibility. Magnetic measurements were interpreted as a uniform antiferromagnetic chain (J = −15.2 cm−1) holding rather strong inter-chain exchange (zJ′ = −2.8 cm−1). Multireference difference dedicated configuration interaction (DDCI) calculations confirmed the non-negligible intensity of inter-chain interactions and evidenced a strong influence of the type of coordinated solvent, NH3 or H2O, on the nature and magnitude of the magnetic exchange. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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