Abstract
A series of mononuclear ruthenium complexes containing pyridine- and pyrimidine-2-thiolato ligands was prepared and characterized. The new compounds of general formula CpRu(PPh 3)(κ 2 S, N-SR) ( 1) (SR = pyridine-2-thiolate ( a), pyrimidine-2-thiolate ( b)) were prepared directly by reacting the thiolato anions (RS −) with CpRu(PPh 3) 2Cl. Complexes 1 readily react with NOBF 4 or CO in THF at room temperature to give [CpRu(PPh 3)(NO)(κ 1 S-HSR)][BF 4] 2 ( 2) and CpRu(PPh 3)(CO)(κ 1 S-SR) ( 3), respectively. The one-pot reaction of CpRu(PPh 3) 2Cl, thiolato anions and bis(diphenylphosphino)ethane (dppe) gave CpRu(dppe)(κ 1 S-SR) [dppe: Ph 2PCH 2CH 2PPh 2 ( 4)]. The complex salts, [CpRu(PPh 3) 2(κ 1 S-HSR)]BPh 4 ( 5) are prepared by mixing CpRu(PPh 3) 2Cl, HSR and NaBPh 4 at room temperature. The structures of CpRu(PPh 3)(κ 2 S, N-Spy) ( 1a), [CpRu(PPh 3)(NO)(κ 1 S-HSpy)][BF 4] 2 ( 2a) and CpRu(PPh 3)(CO)(κ 1 S-Spy) ( 3a), (py = C 5H 4N) have been determined.
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