The monochloro derivative Pt3}Cl [(1), Pt3} = Pt3(μ-PBut2)3(CO)2] was reacted with one equiv. of 4-ethynylbenzaldehyde under Sonogashira dehydrohalogenation conditions to afford Pt3}CC–(1,4)C6H4–CHO, (3). Under analogous conditions, the condensation of the dichloride Pt6}Cl2 [(2), Pt6} = Pt6(μ-PBut2)4(CO)4] with two equiv. of 4-ethynyl-benzaldehyde provided Pt6}(CC–(1,4)C6H4–CHO)2, (4). The fulleropyrrolidine derivatives Pt3}CC–(1,4)C6H4–C2H3N(C8H17)C60, (5), and Pt6}(CC–(1,4)C6H4–C2H3N(C8H17)C60)2, (6), were obtained by reacting the formyl clusters 2 and 4 with an appropriate amount of N-octylglycine and C60. Cyclovoltammetric and IR, UV and NIR spectroelectrochemical data suggest the absence of a significant communication between the cluster and the fullerene units in covalent assemblies 5 and 6. The crystal and molecular structure of compound 3 is also reported.
一
氯衍
生物Pt3}Cl [(1), Pt3} = Pt3(μ-PBut2)3(CO)2]与一当量反应。
4-乙炔基苯甲醛在 Sonogashira 脱卤化氢条件下生成 Pt3}CC–(1,4)
C6H4–CHO, (3)。在类似条件下,二
氯化物Pt6}Cl2 [(2), Pt6} = Pt6(μ-PBut2)4(CO)4]与两当量的缩合。
4-乙炔基苯甲醛提供Pt6}(CC–(1,4) –CHO)2,(4)。富勒
吡咯烷衍
生物 Pt3}CC–(1,4) –
C2H3N(
C8H17)C60, (5) 和 Pt6}(CC–(1,4) – ( )C60)2, (6) ,是通过甲酰簇2和4与适量的N-辛基甘
氨酸和C60反应获得的。环伏安法以及红外、紫外和近红外光谱电
化学数据表明,共价组装体 5 和 6 中的团簇和
富勒烯单元之间不存在显着的通讯。还报道了化合物 3 的晶体和分子结构。