We introduce two new sulfur functionalised phosphines P(C6H4SMe)3L1 and PPh2C6H4SMe L2. Using them as ligands, four new copper selenium clusters were synthesized. The compounds [Cu15Se3(SePh)9(P(C6H4SMe)3)6]
1, [Cu22Se6(SePh)10(PPh2C6H4SMe)8]
2, [Cu20Se(SePh)12(OAc)6(PPh2C6H4SMe)2]
3 and [Cu38Se4(SePh)24(OAc)6(PPh2C6H4SMe)4]
4 were characterized by single crystal X-ray analysis and demonstrate the coordination of the phosphines through the phosphorus atoms. The thiomethyl groups of the ligands are not coordinated to any metal centre, but are located on the surface of the organic shell of the cluster molecules. This may provide an opportunity for further reactions between the functionalised clusters and metal atoms or surfaces. Furthermore the inner cluster cores show arrangements of copper and selenium atoms not yet found in these kinds of compounds.
我们引入了两种新的
硫官能化膦:P(C6H4SMe)3L1和PPh2C6H4SMe
L2。以它们为
配体,合成了四种新的
铜硒簇。化合物[Cu15Se3(SePh)9(P(C6H4SMe)3)6]1、[Cu22Se6(SePh)10(PPh2C6H4SMe)8]2、[Cu20Se(SePh)12(OAc)6(PPh2C6H4SMe)2]3和[Cu38Se4(SePh)24(OAc)6(PPh2C6H4SMe)4]4通过单晶X射线分析进行了表征,并证明了
磷原子通过
磷原子与膦配位。
配体的
硫甲基基团不与任何
金属中心配位,而是位于簇分子有机壳的表面。这为官能化簇与
金属原子或表面之间的进一步反应提供了机会。此外,内部簇核显示的
铜和
硒原子排列是此类化合物中从未见过的。