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

被引：13

作者：

Garai, Somenath ^{[1
]}

Merca, Alice ^{[1
]}

Bhowmik, Susovan ^{[1
]}

El Moll, Hani ^{[1
]}

Li, Haolong ^{[2
]}

Haso, Fadi ^{[3
]}

Nogueira, Helena ^{[4
,5
]}

Liu, Tianbo ^{[3
]}

Wu, Lixin ^{[2
]}

Gouzerh, Pierre ^{[6
]}

Mueller, Achim ^{[1
]}

机构：

[1] Univ Bielefeld, Fak Chem, D-33501 Bielefeld, Germany

[2] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China

[3] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA

[4] Univ Aveiro, CICECO, P-3810193 Aveiro, Portugal

[5] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal

[6] Univ Paris 06, Sorbonne Univ, Inst Parisien Chim Mol, UMR CNRS 8232, F-75005 Paris, France

来源：

SOFT MATTER | 2015年 / 11卷 / 12期

基金：

欧洲研究理事会; 美国国家科学基金会;

关键词：

RESONANCE RAMAN-SCATTERING; LANGMUIR-BLODGETT-FILMS; BUILDING-BLOCKS; POLYOXOMETALATE; COMPLEXES; ARCHITECTURES; TEMPERATURE; MONOLAYERS; CHEMISTRY; BEHAVIOR;

D O I：

10.1039/c4sm02662d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The hedgehog-shaped {Mo-368} 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.

引用

页码：2372 / 2378

页数：7

共 2 条

[1] On the complex hedgehog-shaped cluster species containing 368 Mo atoms:: simple preparation method, new spectral details and information about the unique formation
Müller, A
Botar, B
Das, SK
Bögge, H
Schmidtmann, M
Merca, A
POLYHEDRON, 2004, 23 (15) : 2381 - 2385
[2] Sugar-derived tricatenar catanionic surfactant: Synthesis, self-assembly properties, and hydrophilic probe encapsulation by vesicles
Soussan, Elodie
Mille, Caroline
Blanzat, Muriel
Bordat, Pascal
Rico-Lattes, Isabelle
LANGMUIR, 2008, 24 (06) : 2326 - 2330

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