Mono‐ and Trinuclear Tripodal Platinum(II) Chelated Complexes Containing a Pyridine/Sulfoxide Based Anchoring Framework
作者:Anna Barattucci、M. Rosaria Plutino、Cristina Faggi、Paola Bonaccorsi、Luigi Monsù Scolaro、Maria Chiara Aversa
DOI:10.1002/ejic.201300042
日期:2013.7
species 6a to a CD3CN solution of a platinum(II) complex of the type cis-[PtMe2(Me2SO)2] (Pt1) or trans-[PtMeCl(Me2SO)2] (Pt2), platinum(II) coordination and chelation occurred, as definitively indicated by a sharp change in the 1H NMR spectrum towards the final corresponding chelated platinum(II) species and free dimethyl sulfoxide. The prepared platinum(II) species contain one or three fragments of the
新的三足配体 2,4,6-triethyl-1,3,5-tris[1-(2-pyridinyl)ethenyl]sulfinylmethyl}benzos 6,其特征在于三个侧链,每个都含有亚砜和吡啶部分,合成自相应的次磺酸和2-乙炔基吡啶。获得并分离了两种非对映体混合物,一种外消旋混合物6a,具有C3对称轴,而另一种6b没有对称性。为了研究这些螯合-κN,κS型配体的配位能力,还合成了单支化外消旋[1-(2-吡啶基)乙烯基]亚磺酰基苯9。将等量的单螯合配体 9 或三足类物质 6a 添加到顺式-[PtMe2(Me2SO)2] (Pt1) 或反式-[PtMeCl(Me2SO) 类型的铂 (II) 络合物的 CD3CN 溶液中2] (Pt2), 铂 (II) 发生配位和螯合,正如 1H NMR 谱向最终相应的螯合铂 (II) 物质和游离二甲基亚砜的急剧变化所明确表明的那样。制备的铂 (II)