Bis(allyl) ruthenium(IV) complexes. Part 1. Synthesis of complexes containing four-membered ruthenium heterocycles. Crystal structure of [Ru(η3:η3-C10H16)-(SNC7H4S–2)Cl]

Abstract

The dimer [{Ru(η³:η³–C₁₀H₁₆)(µ–Cl)Cl}₂]1(C₁₀H₁₆= 2,7-dimethyloctadienediyl) reacts with benzothiazole-2-thiol and pyridine-2-thiol and pyridine-2-thiol to give, as intital products, [Ru(η³:η³-C₁₀H₁₆)(SNC₇H₄SH-2)Cl₂]2 and [Ru(η³:η³-C₁₀H₁₆)(NC₅H₄SH–2)Cl₂]4 respectively. Intermolecular loss of HCl from complexes 2 and 4 leads to the formation of [Ru(η³:η³-C₁₀H₁₆)(SNC₇H₄S-2)Cl]3 and [Ru(η³:η³-C₁₀H₁₆)(NC₅H₄S-2)Cl]5 respectively. Complex 1 reacts with sodium dithiocarbamate to from [Ru(η³:η³-C₁₀H₁₆)(S₂CNEt₂)Cl]6 directly. Complexes 3 and 5 react with MeCN in the presence of silver salts to from [Ru(η³:η³-C₁₀H₁₆)-(SNC₇H₄S-2)(NCMe)][BF₄]7 and [Ru(η³:η³-C₁₀H₁₆)(NC₅H₄S-2)(NCMe)][PF₆]8 respectively. The X-ray structure of 3[space group P2₁(no. 4), a= 11.627(3), b= 17.961(4), c= 8.206(3)Å, β= 90.21(2)°, Z= 4] is reported.