N,N′-Bis(3-methoxysalicylidene)propane-1,2-diamine mononuclear 4f and heterodinuclear Cu-4f complexes: Synthesis, crystal structure and electrochemical properties
In: Inorganica Chimica Acta, Jg. 362 (2009-04-01), S. 1761-1766
Online
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Zugriff:
Reactions of H2L [H2L = N,N′-bis(3-methoxysalicylidene)propane-1,2-diamine] and Ln(NO3)3 · 6H2O give rise to two different mononuclear 4f complexes, namely, {[(H2L)La(NO3)3(MeOH)] · H2O}n (1) and [(H2L)Nd(NO3)3] (2). Further additions of Cu(Ac)2 · H2O to the mononuclear 4f complexes yield expected heterodinuclear Cu-4f complexes [LCu(Me2CO)Ln(NO3)3] (3, Ln = Nd; 4, Ln = Eu; 5, Ln = Dy). Complex 1 is a unique 1D polymeric chain structure, and 2 is one of the few structurally characterized discrete hexadentate salen-type mononuclear 4f complexes. Complexes 3–5 are similar to their analogues. However, they are prepared by a reversed synthetic route in contrast to their isomorphic complexes. Electrochemical behavior of heterodinuclear Cu-4f complexes 3–5 has been examined by cyclic voltammetry in acetonitrile. The redox potential of heterodinuclear Cu-4f complexes 3–5 shows significant anodic shift comparing to that of mononuclear copper complex (LCu). A tendency of anodic shift was observed in a sequence of 3
Titel: |
N,N′-Bis(3-methoxysalicylidene)propane-1,2-diamine mononuclear 4f and heterodinuclear Cu-4f complexes: Synthesis, crystal structure and electrochemical properties
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Autor/in / Beteiligte Person: | Zhang, Ju-Wen ; Li, Guangming ; Sun, Wen-Bin ; Xu, Hui ; Yan, Pengfei |
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Zeitschrift: | Inorganica Chimica Acta, Jg. 362 (2009-04-01), S. 1761-1766 |
Veröffentlichung: | Elsevier BV, 2009 |
Medientyp: | unknown |
ISSN: | 0020-1693 (print) |
DOI: | 10.1016/j.ica.2008.08.016 |
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