Sn–S and Ru–Ru bonds cleavage reactions between [Ph3SnS(CH2)3SSnPh3] and Ru3(CO)12: X-ray crystal structures of [Ph3SnS(CH2)3SSnPh3] and trans-[Ru(CO)4(SnPh3)2]
摘要:
The organotin complex [Ph3SnS(CH2)(3)SSnPh3] (1) was synthesized by PdCl2 catalyzed reaction between Ph3SnCl and disodium-1,3-propanedithiolate which in turn was prepared from 1,2-propanedithiol and sodium in refluxing THF. Reaction of 1 with Ru-3(CO)(12) in refluxing THF affords the mononuclear complex trans-[Ru(CO)(4)(SnPh3)(2)] (2) and the dinuclear complex [Ru-2(CO)(6)(mu-kappa(2)-SCH2CH2CH2S)] (3) in 20 and 11% yields, respectively, formed by cleavage of Sn-S bond of the ligand and Ru-Ru bonds of the cluster. Treatment of pymSSnPPh(3) (pymS = pyrimidine-2-thiolate) with Ru-3(CO)(12) at 55-60 degrees C also gives 2 in 38% yield. Both 1 and 2 have been characterized by a combination of spectroscopic data and single crystal X-ray diffraction analysis. (C) 2009 Elsevier B. V. All rights reserved.