Thiolate Ligand Exchange Mechanisms of Au1 and Subnanometer Gold Particle Au11

2010 ◽  
Vol 114 (42) ◽  
pp. 18134-18138 ◽  
Author(s):  
Allison Hadley ◽  
Christine M. Aikens
Keyword(s):  
Gold Particle ◽  
Ligand Exchange ◽  
Thiolate Ligand

Neat and Complete: Thiolate-Ligand Exchange on a Silver Molecular Nanoparticle

2014 ◽  
Vol 136 (45) ◽  
pp. 15865-15868 ◽  
Author(s):  
Lina G. AbdulHalim ◽  
Nuwan Kothalawala ◽  
Lutfan Sinatra ◽  
Amala Dass ◽  
Osman M. Bakr
Keyword(s):  
Ligand Exchange ◽  
Thiolate Ligand

scholarly journals The Au25(pMBA)17Diglyme Cluster

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2562
Author(s):  
James Armstrong ◽  
Chris J. Ackerson
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Optical Spectroscopy ◽  
Electrospray Ionization Mass Spectrometry ◽  
Ligand Exchange ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Esi Ms ◽  
Synthetic Product ◽  
Thiolate Ligand

A modification of Au25(pMBA)18 that incorporates one diglyme ligand as a direct synthetic product is reported. Notably the expected statistical production of clusters containing other ligand stoichiometries is not observed. This Au25(pMBA)17diglyme product is characterized by electrospray ionization mass spectrometry (ESI-MS) and optical spectroscopy. Thiolate for thiolate ligand exchange proceeds on this cluster, whereas thiolate for diglyme ligand exchange does not.

Silver-Assisted Thiolate Ligand Exchange Induced Photoluminescent Boost of Gold Nanoclusters for Selective Imaging of Intracellular Glutathione

2018 ◽  
Vol 30 (6) ◽  
pp. 1947-1955 ◽  
Author(s):  
Xueqi Hu ◽  
Youkun Zheng ◽  
Junyu Zhou ◽  
Danjun Fang ◽  
Hui Jiang ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Gold Nanoclusters ◽  
Thiolate Ligand ◽  
Intracellular Glutathione

Divergent Syntheses of Copper−Indium Bimetallic Single-Source Precursors via Thiolate Ligand Exchange

2010 ◽  
Vol 49 (11) ◽  
pp. 4756-4758 ◽  
Author(s):  
Chivin Sun ◽  
Richard D. Westover ◽  
Kelsey R. Margulieux ◽  
Lev N. Zakharov ◽  
Andrew W. Holland ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Single Source ◽  
Single Source Precursors ◽  
Copper Indium ◽  
Thiolate Ligand

The Shadow Widths of Very Small Particles are Formed Independently of the Metal Cap Build Up on the Particle

1981 ◽  
Vol 39 ◽  
pp. 568-569
Author(s):  
George C. Ruben
Keyword(s):  
Gold Particle ◽  
Film Surface ◽  
Small Particles ◽  
Geometric Process ◽  
Metal Free ◽  
Shadow Area

The formation of shadows behind small particles has been thought to be a geometric process (GP) where the metal cap build up on the particle creates a shadow width the same size as or larger than the particle. This GP cannot explain why gold particle shadow widths are generally larger than the gold particle and may have no appreciable metal cap build up (fig. 1). Ruben and Telford have suggested that particle shadow widths are formed by the width dependent deflection of shadow metal (SM) lateral to and infront of the particle. The trajectory of the deflected SM is determined by the incoming shadow angle (45°). Since there can be up to 1.4 times (at 45°) more SM directly striking the particle than the film surface, a ridge of metal nuclei lateral to and infront of the particle can be formed. This ridge in turn can prevent some SM from directly landing in the metal free shadow area. However, the SM that does land in the shadow area (not blocked by the particle or its ridge) does not stick and apparently surface migrates into the SM film behind the particle.

Separation of fudosteine on an achiral C18column by HPLC with chiral ligand-exchange selectors as mobile phase additives

2008 ◽  
Vol 20 (4) ◽  
pp. 585-594 ◽  
Author(s):  
J. Ma ◽  
J. Cao ◽  
M. J. Ding ◽  
L. H. Yuan ◽  
M. J. Zhai ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Mobile Phase ◽  
Chiral Ligand ◽  
Mobile Phase Additives ◽  
Chiral Ligand Exchange

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazole-2-ylidene Ligands

2020 ◽  
Author(s):  
Matthew Stout ◽  
Brian Skelton ◽  
Alexandre N. Sobolev ◽  
Paolo Raiteri ◽  
Massimiliano Massi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Ligand Exchange ◽  
Ligand Substitution ◽  
Bidentate Ligand ◽  
The Other ◽  
Ligand Exchange Reaction ◽  
Multiple Products ◽  
Ligand Charge Transfer ◽  
Photochemical Properties

<p>Three Re(I) tricarbonyl complexes, with general formulation Re(N^L)(CO)<sub>3</sub>X (where N^L is a bidentate ligand containing a pyridine functionalized in the position 2 with a thione or a thiazol-2-ylidene group and X is either chloro or bromo) were synthesized and their reactivity explored in terms of solvent-dependent ligand substitution, both in the ground and excited states. When dissolved in acetonitrile, the complexes bound to the thione ligand underwent ligand exchange with the solvent resulting in the formation of Re(NCMe)<sub>2</sub>(CO)<sub>3</sub>X. The exchange was found to be reversible, and the starting complex was reformed upon removal of the solvent. On the other hand, the complexes appeared inert in dichloromethane or acetone. Conversely, the complex bound to the thiazole-2-ylidene ligand did not display any ligand exchange reaction in the dark, but underwent photoactivated ligand substitution when excited to its lowest metal-to-ligand charge transfer manifold. Photolysis of this complex in acetonitrile generated multiple products, including Re(I) tricarbonyl and dicarbonyl solvato-complexes as well as free thiazole-2-ylidene ligand.</p>

Voltammetric Studies of Some Novel Fe(III) Complexes with Quadridentate Ligands. The Axial Ligand-Exchange Reactions in DMF and DMSO

1995 ◽  
Vol 60 (7) ◽  
pp. 1140-1157 ◽  
Author(s):  
Ljiljana S. Jovanovic ◽  
Luka J. Bjelica
Keyword(s):  
Oxidation State ◽  
Chemical Reactions ◽  
Ligand Exchange ◽  
Kinetic Data ◽  
Central Atom ◽  
Axial Ligand ◽  
Exchange Reactions ◽  
Ligand Effect ◽  
Condensation Products ◽  
Voltammetric Studies

The electrochemistry of four novel Fe(III) complexes of the type [Fe(L)Cl], involving quadridentate ligands based on the condensation products of benzoylacetone-S-methylisothiosemicarbazone with salicylaldehyde, 5-chlorosalicylaldehyde, 3,5-dichlorosalicylaldehyde or 5-nitrosalicylaldehyde, was studied in DMF and DMSO at a GC electrode. All complexes undergo a two-step one-electron reductions, usually complicated by chemical reactions. In solutions containing Cl-, the ligand-exchange reactions Cl--DMF and Cl--DMSO take place. Stability of the chloride-containing complexes was discussed in terms of the coordinated ligand effect, oxidation state of the central atom and, in particular, of the donor effect of the solvent. Some relevant kinetic data were calculated.

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