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Soft Matter. 2015 Mar 28;11(12):2372-8. doi: 10.1039/c4sm02662d.

Hedgehog-shaped {Mo368} cluster: unique electronic/structural properties, surfactant encapsulation and related self-assembly into vesicles and films.

Author information

1
Fakultät für Chemie der Universität Bielefeld, Anorganische Chemie 1, Postfach 100131, 33501 Bielefeld, Germany. a.mueller@uni-bielefeld.de.

Abstract

The hedgehog-shaped {Mo368} cluster shows unique electronic (extremely high extinction coefficient) and structural features, especially regarding its size, the high number of delocalized electrons which allows to measure the surface enhanced Raman scattering (SERS) spectrum and the option for coordination chemistry inside the cavity. Its relative instability in aqueous solution can be overcome by embedment in a hydrophobic shell of dimethyldioctadecylammonium cations. The resulting hybrid self-assembles into spherical vesicles in acetone-water mixtures, according to a process directed by hydrophobic-hydrophilic interactions. It also forms rather stable Langmuir monolayers while a second layer evolves under higher surface pressure, in accordance with a rather low alkyl surface density.

PMID:
25629447
DOI:
10.1039/c4sm02662d

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