On the Size Evolution of Monolayer-Protected Gold Clusters during Ligand Place-Exchange Reactions: The Effect of Solvents

This study examined the solution-phase exchange reactions of triphenylphosphine (PPh3) ligands on Au8L72+ (L = PPh3) gold clusters with three different tolyl ligands using electrospray ionization mass spectrometry to provide insight into how steric differences in the phosphines influence the extent of ligand exchange and the stability of the resulting mixed-phosphine clusters.

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Kinetics of Place-Exchange Reactions of Thiols on Gold Nanoparticles

Langmuir ◽

10.1021/la034581s ◽

2003 ◽

Vol 19 (12) ◽

pp. 5172-5174 ◽

Cited By ~ 73

Author(s):

Marco Montalti ◽

Luca Prodi ◽

Nelsi Zaccheroni ◽

Richard Baxter ◽

Gilberto Teobaldi ◽

...

Keyword(s):

Gold Nanoparticles ◽

Exchange Reactions ◽

Place Exchange ◽

Kinetics Of

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Place Exchange Reactions of Alkyl Thiols on Gold Nanoparticles

Journal of the American Chemical Society ◽

10.1021/ja057091q ◽

2006 ◽

Vol 128 (11) ◽

pp. 3476-3477 ◽

Cited By ~ 79

Author(s):

Adil Kassam ◽

Glen Bremner ◽

Brad Clark ◽

Gerardo Ulibarri ◽

R. Bruce Lennox

Keyword(s):

Gold Nanoparticles ◽

Exchange Reactions ◽

Place Exchange

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Size evolution study of “molecular” and “atom-in-cluster” polarizabilities of medium-size gold clusters

The Journal of Chemical Physics ◽

10.1063/1.3607989 ◽

2011 ◽

Vol 135 (3) ◽

pp. 034109 ◽

Cited By ~ 7

Author(s):

Juan I. Rodríguez ◽

Jochen Autschbach ◽

F. L. Castillo-Alvarado ◽

María I. Baltazar-Méndez

Keyword(s):

Gold Clusters ◽

Medium Size ◽

Size Evolution ◽

Evolution Study

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Ligand Exchange Reactions in the Formation of Diphosphine-Protected Gold Clusters

The Journal of Physical Chemistry C ◽

10.1021/jp804046e ◽

2008 ◽

Vol 112 (33) ◽

pp. 12808-12814 ◽

Cited By ~ 27

Author(s):

Denis E. Bergeron ◽

Orkid Coskuner ◽

Jeffrey W. Hudgens ◽

Carlos A. Gonzalez

Keyword(s):

Ligand Exchange ◽

Gold Clusters ◽

Exchange Reactions

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Hydrogen Bonding: A Bottom-Up Approach for the Synthesis of Films Composed of Gold Nanoparticles

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.2.115 ◽

2008 ◽

Vol 2 ◽

pp. 115-128 ◽

Cited By ~ 5

Author(s):

Mariana Chirea ◽

Carlos M. Pereira ◽

Fernando Silva

Keyword(s):

Gold Nanoparticles ◽

Hydrogen Bonding ◽

Exchange Reaction ◽

Film Formation ◽

Gold Clusters ◽

Blue Color ◽

Mercaptosuccinic Acid ◽

First Case ◽

Place Exchange ◽

Film Synthesis

Citrate gold nanoparticles of 13.5 nm average diameters have been synthesized by Turkevich method and further functionalized by place exchange reaction using mercaptosuccinic acid (MSA), 1,4-benezenedimethanethiol (1,4BDMT) or mercaptoundecanoic acid (MUA) as the incoming ligands. In the first case, the functionalization of the gold clusters with MSA yielded solution of blue color and large aggregates on carbon grids. Moreover, after filtration and drying, any film formed by hydrogen bonding, could not be removed from the filter, being embedded into the filter texture. The second ligand used for the place exchange reaction, the 1,4BDMT, determined the change of the solution color from red to dark purple, and generation of a purple powder but no film formation. In the third case, the purification and drying of the MUA functionalized gold clusters yielded films of purple color with homogenous composition, robustness, soft topographies and remarkable optical properties which were dependent on their thicknesses. The Au-MUA NP films obtained are new, being generated by hydrogen bonding and having features which makes them very attractive for the fabrication of optoelectronic devices. The long alkyl chained thiol proved to be the adequate ligand for film synthesis.

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