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Synthesis, Spectroscopic and Structural Characterization of New RuII and RuIII Complexes Containing Triazole- and Thiadiazole-Type Ligands

✍ Scribed by Marina Biagini Cingi; Maurizio Lanfranchi; Maria Angela Pellinghelli; Matteo Tegoni

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
469 KB
Volume
2000
Category
Article
ISSN
1434-1948

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✦ Synopsis

The chemical behavior of triazole, thiadiazole, and triazoline derivatives of thiocarbonohydrazide towards cis-[RuCl 2 (DMSO) 4 ] (2) was studied. Reaction of 4-amino-5methylthio-3-(2-pyridyl)-1,2,4-triazole (L1) with 2 gave two diastereomeric complexes, trans,cis-[RuCl 2 (DMSO) 2 (L1)] (3) and chiral cis,cis-[RuCl 2 (DMSO) 2 (L1)] (4). Reaction of 2 with 2-(2-formylhydrazino)-1,3,4-thiadiazole in MeOH gave the complex trans,cis-[RuCl 2 (DMSO) 2 (L2)] ( 5) with concomitant deformylation of the starting ligand. The process was catalyzed by Ru II in very low yield. Synthesis of the Ru complexes of 4-amino-3-methyl-1,2,4-∆ 2 -triazoline-5-thione (L3) and 4- [a]

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