Synthesis and electrochemical characterization of bimetallic ruthenium complexes with the bridging eta2(s,s)-1,3-butadiyne-1,4-diyl ligand
| Autor: | Stein,Edison, Oki,Sergio Y., Vichi,Eduardo J. S. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: | |
| Zdroj: | Journal of the Brazilian Chemical Society v.11 n.3 2000 Journal of the Brazilian Chemical Society Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| Popis: | The bis(ruthenium)alkyne complex [cis-{RuCl (bpy)2(mu-CºC-)}]2 (1) was obtained by treatment of 1 equiv of either 1,4-bis(trimethylsilyl)-1,3-butadiyne or bis(trimetylsilyl)acetylene with 2 equiv of cis-[RuCl2(bpy)2].2H2O, NaF and NaBF4 salts in methanol/CH2Cl2 mixture (10/1) in 52% and 35% yields, respectively. ¹H, 13C{H} NMR and principally electrochemical analyses confirmed that the same product was obtained from the two reactions. Cyclic voltammetric analyses of (1) from 0 to 1.20 V displays two one-electron quasi-reversible oxidation peaks attributed to the Ru(II)/Ru(III) couple. The redox processes are separated by 520 mV, indicating a significant electronic communication between the two metallic centers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|