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Synthesis, characterization and cyclic voltammetric studies ofβ-ketooximato ruthenium(II) complexes

✍ Scribed by Natun Ghatak; Samaresh Bhattacharya

Publisher
Springer
Year
1996
Tongue
English
Weight
415 KB
Volume
21
Category
Article
ISSN
0340-4285

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✦ Synopsis

fl-Ketooxime [RC(O)C(NOH)R] (R = Me or Ph) ligands (HL) react with [Ru(PPh3)3C12] in refluxing EtOH to yield [Ru(PPh3)2(L)2'] complexes. For R=Me, one isomer was obtained, while two isomers were isolated when R = Ph, due to a bulk effect. The complexes are diamagnetic and absorb intensely in the vis. region due to MLCT transitions. In MeCN and CH2C12 solution, Ru n_ Ru m oxidation occurs in the 0.69-0.92V versus s.c.e.

range. The oxidation potential depends on both the electronic nature of R and the stereochemistry of the complexes.

📜 SIMILAR VOLUMES

Synthesis, characterization and cyclic v
Synthesis, characterization and cyclic voltammetric studies of ruthenium oximates
✍ Natun Ghatak; Samaresh Bhattacharya 📂 Article 📅 1996 🏛 Springer 🌐 English ⚖ 485 KB

Using 1,2-naphthoquinone-1-oxime (HL) as the principal ligand, four mixed-ligand ruthenium oximate complexes -namely [Ru(bipy)2(L)]C104, [Ru(pap)a(L)]-C10 4, [Ru(bipy)(L)2 ] and [Ru(PPh3)2(L)2 ], where bipy = 2,2'-bipyridine and pap = 2-(phenylazo)pyridinehave been synthesized and characterized. In