Cooperative Gold Nanoparticle Stabilization by Acetylenic Phosphaalkenes

被引：13

作者：

Orthaber, Andreas ^{[1
]}

Lofas, Henrik ^{[2
]}

Oberg, Elisabet ^{[1
]}

Grigoriev, Anton ^{[2
]}

Wallner, Andreas ^{[3
]}

Jafri, S. Hassan M. ^{[4
]}

Santoni, Marie-Pierre ^{[1
]}

Ahuja, Rajeev ^{[2
]}

Leifer, Klaus ^{[4
]}

Ottosson, Henrik ^{[3
]}

Ott, Sascha ^{[1
]}

机构：

[1] Uppsala Univ, Dept Chem, Angstrom Labs, S-75120 Uppsala, Sweden

[2] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden

[3] Uppsala Univ, Dept Chem BMC, S-75123 Uppsala, Sweden

[4] Uppsala Univ, Dept Engn Sci, Angstrom Labs, S-75121 Uppsala, Sweden

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 36期

基金：

奥地利科学基金会; 瑞典研究理事会;

关键词：

abinitio studies; acetylenic phosphaalkenes; dynamic behavior; gold nanoparticles; SELF-ASSEMBLED MONOLAYERS; UNDECAGOLD CLUSTERS; LIGAND-EXCHANGE; SIZE; MECHANISM; JUNCTIONS;

D O I：

10.1002/anie.201504834

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Acetylenic phosphaalkenes (APAs) are used as a novel type of ligands for the stabilization of gold nanoparticles (AuNP). As demonstrated by a variety of experimental and analytical methods, both structural features of the APA, that is, the PC as well as the CC units are essential for NP stabilization. The presence of intact APAs on the AuNP is demonstrated by surface-enhanced Raman spectroscopy (SERS), and first principle calculations indicate that bonding occurs most likely at defect sites on the Au surface. AuNP-bound APAs are in chemical equilibrium with free APAs in solution, leading to a dynamic behavior that can be explored for facile place-exchange reactions with other types of anchor groups such as thiols or more weakly binding phosphine ligands.

引用

页码：10634 / 10638

页数：5

共 36 条

[1] Redox Switching in Ethenyl- Bridged Bisphospholes
Arkhypchuk, Anna I.
Mijangos, Edgar
Lomoth, Reiner
Ott, Sascha
[J]. CHEMISTRY-A EUROPEAN JOURNAL, 2014, 20 (49) : 16083 - 16087
[2] Highly Conducting π-Conjugated Molecular Junctions Covalently Bonded to Gold Electrodes
Chen, Wenbo
Widawsky, Jonathan R.
Vazquez, Hector
Schneebeli, Severin T.
Hybertsen, Mark S.
Breslow, Ronald
Venkataraman, Latha
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (43) : 17160 - 17163
[3] In situ formation of highly conducting covalent Au-C contacts for single-molecule junctions
Cheng, Z. -L.
Skouta, R.
Vazquez, H.
Widawsky, J. R.
Schneebeli, S.
Chen, W.
Hybertsen, M. S.
Breslow, R.
Venkataraman, L.
[J]. NATURE NANOTECHNOLOGY, 2011, 6 (06) : 353 - 357
[4] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology
Daniel, MC
Astruc, D
[J]. CHEMICAL REVIEWS, 2004, 104 (01) : 293 - 346
[5] Dillon K. B., 1998, Phosphorus: The Carbon Copy, from Organophosphorus to Phosphaorganic Chemistry
[6] Coordination Behavior of sterically protected phosphaalkenes on the AuCl moiety leading to catalytic 1,6-enyne cycloisomerization
Freytag, Matthias
Ito, Shigekazu
Yoshifuji, Masaaki
[J]. CHEMISTRY-AN ASIAN JOURNAL, 2006, 1 (05) : 693 - 700
[7] Acetylene-Expanded Dendralene Segments with Exotopic Phosphaalkene Units
Geng, Xue-Li
Ott, Sascha
[J]. CHEMISTRY-A EUROPEAN JOURNAL, 2011, 17 (43) : 12153 - 12162
[8] Phosphaalkenes in π-conjugation with Acetylenic Arenes
Geng, Xue-Li
Hu, Qi
Schafer, Bernhard
Ott, Sascha
[J]. ORGANIC LETTERS, 2010, 12 (04) : 692 - 695
[9] A selective chemical sensor based on the plasmonic response of phosphinine-stabilized gold nanoparticles hosted on periodically organized mesoporous silica thin layers
Goettmann, F
Moores, A
Boissière, C
Le Floch, P
Sanchez, C
[J]. SMALL, 2005, 1 (06) : 636 - 639
[10] Ito S, 2006, DALTON T, P710, DOI 10.1039/b510432g

← 1 2 3 4 →