Cerrada Elena, Moreno Ana, Laguna Mariano
Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza - CSIC, 50009, Zaragoza, Spain.
Dalton Trans. 2009 Sep 14(34):6825-35. doi: 10.1039/b902569c. Epub 2009 Jul 15.
Dithiolate tin(iv) complexes [SnMe(2)(SS)] (SS = 4,5-dimercapto-1,3-dithiol-2-thione, dmit; 1,2-benzene dithiolate, bdt; and 3,4-toluene dithiolate, tdt) are used as transmetallating agents in the reaction with nickel derivatives [NiBrR'(PR(3))(2)] (R' = mesitylene (Mes) and 2,4,6-trisisopropylphenyl (Trip), and PR(3) = PPh(3) and PPh(2)Me). The reaction results in the isolation of different complexes with a great variety of stoichiometries, including mono-, di- and trinuclear nickel complexes with the general formulae: Ni(SS)(PR(3)), [Ni(Mes)(SS-Mes)(PR(3))], [Ni(SS-Mes)(2)] and [Ni(3)(bdt)(3)(PPh(2)Me)(2)], and the organic compounds {dmit(Mes)}(2), {dmit(Trip)}(2), {dbt(Mes)(2)} and {tbt(Mes)(2)} as a consequence of S,C- and S,S-coupling processes. In the case of [Ni(Mes)(dmitMes)(PPh(2)Me)], {dmit(Trip)}(2), [Ni(3)(bdt)(3)(PPh(2)Me)(2)] and [Ni(bdtMes)(2)] the X-ray analyses are also presented to confirm the proposed structures.
二硫醇锡（IV）配合物[SnMe(2)(SS)]（SS = 4,5-二巯基-1,3-二硫醇-2-硫酮，dmit；1,2-苯二硫醇盐，bdt；以及3,4-甲苯二硫醇盐，tdt）在与镍衍生物[NiBrR'(PR(3))(2)]（R' = 均三甲苯（Mes）和2,4,6-三异丙基苯基（Trip），且PR(3) = PPh(3)和PPh(2)Me）的反应中用作金属转移试剂。该反应导致分离出具有多种化学计量比的不同配合物，包括通式为Ni(SS)(PR(3))、[Ni(Mes)(SS-Mes)(PR(3))]、[Ni(SS-Mes)(2)]和[Ni(3)(bdt)(3)(PPh(2)Me)(2)]的单核、双核和三核镍配合物，以及由于S,C-和S,S-偶联过程产生的有机化合物{dmit(Mes)}(2)、{dmit(Trip)}(2)、{dbt(Mes)(2)}和{tbt(Mes)(2)}。对于[Ni(Mes)(dmitMes)(PPh(2)Me)]、{dmit(Trip)}(2)、[Ni(3)(bdt)(3)(PPh(2)Me)(2)]和[Ni(bdtMes)(2)]，还进行了X射线分析以确认所提出的结构。
