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Cyclo-P4 Building Blocks: Achieving Non-Classical Fullerene Topology and Beyond.

ABSTRACT: The cyclo-P4 complexes [CpR Ta(CO)2 (?4 -P4 )] (CpR : Cp''=1,3-C5 H3 tBu2 , Cp'''=1,2,4-C5 H2 tBu3 ) turned out to be predestined for the formation of hollow spherical supramolecules with non-classical fullerene-like topology. The resulting assemblies constructed with CuX (X=Cl, Br) showed a highly symmetric 32-vertex core of solely four- and six-membered rings. In some supramolecules, the inner cavity was occupied by an additional CuX unit. On the other hand, using CuI, two different supramolecules with either peanut- or pear-like shapes and outer diameters in the range of 2-2.5?nm were isolated. Furthermore, the spherical supramolecules containing Cp''' ligands at tantalum are soluble in CH2 Cl2 . NMR spectroscopic investigations in solution revealed the formation of isomeric supramolecules owing to the steric hindrance caused by the third tBu group on the Cp''' ligand. In addition, a 2D coordination polymer was obtained and structurally characterized.

SUBMITTER: Dielmann F 

PROVIDER: S-EPMC5129560 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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cyclo-P<sub>4</sub> Building Blocks: Achieving Non-Classical Fullerene Topology and Beyond.

Dielmann Fabian F   Peresypkina Eugenia V EV   Krämer Barbara B   Hastreiter Florian F   Johnson Brian P BP   Zabel Manfred M   Heindl Claudia C   Scheer Manfred M  

Angewandte Chemie (International ed. in English) 20161026 47

The cyclo-P<sub>4</sub> complexes [Cp<sup>R</sup> Ta(CO)<sub>2</sub> (η<sup>4</sup> -P<sub>4</sub> )] (Cp<sup>R</sup> : Cp''=1,3-C<sub>5</sub> H<sub>3</sub> tBu<sub>2</sub> , Cp'''=1,2,4-C<sub>5</sub> H<sub>2</sub> tBu<sub>3</sub> ) turned out to be predestined for the formation of hollow spherical supramolecules with non-classical fullerene-like topology. The resulting assemblies constructed with CuX (X=Cl, Br) showed a highly symmetric 32-vertex core of solely four- and six-membered rings. In  ...[more]

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