The monochloro derivative {Pt-3} Cl [(1), {Pt-3} = Pt-3(mu-PBu2t)(3)(CO)(2)] was reacted with one equiv. of 4-ethynyl-benzaldehyde under Sonogashira dehydrohalogenation conditions to afford {Pt-3}CC-(1,4)C6H4-CHO, (3). Under analogous conditions, the condensation of the dichloride {Pt-6}Cl-2 [(2), {Pt-6} = Pt-6(mu-PBu2t)(4)(CO)(4)] with two equiv. of 4-ethynyl-benzaldehyde provided {Pt-6}(CC-(1,4)C6H4-CHO)(2), (4). The fulleropyrrolidine derivatives {Pt-3}CC-(1,4)C6H4-C2H3N(C8H17)C-60, (5), and {Pt-6}(CC-(1,4)C6H4-C2H3N(C8H17)C-60)(2), (6), were obtained by reacting the formyl clusters 2 and 4 with an appropriate amount of N-octylglycine and C-60. 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.
Bridging molecular clusters and fullerene
FUNAIOLI, TIZIANA;LEONI, PIERO;MARCHETTI, LORELLA;
2013-01-01
Abstract
The monochloro derivative {Pt-3} Cl [(1), {Pt-3} = Pt-3(mu-PBu2t)(3)(CO)(2)] was reacted with one equiv. of 4-ethynyl-benzaldehyde under Sonogashira dehydrohalogenation conditions to afford {Pt-3}CC-(1,4)C6H4-CHO, (3). Under analogous conditions, the condensation of the dichloride {Pt-6}Cl-2 [(2), {Pt-6} = Pt-6(mu-PBu2t)(4)(CO)(4)] with two equiv. of 4-ethynyl-benzaldehyde provided {Pt-6}(CC-(1,4)C6H4-CHO)(2), (4). The fulleropyrrolidine derivatives {Pt-3}CC-(1,4)C6H4-C2H3N(C8H17)C-60, (5), and {Pt-6}(CC-(1,4)C6H4-C2H3N(C8H17)C-60)(2), (6), were obtained by reacting the formyl clusters 2 and 4 with an appropriate amount of N-octylglycine and C-60. 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
