Gas‐Phase Synthesis and Intense Visible Absorption of Tryptophan–Gold Cations

Antoine, Rodolphe; Bertorelle, Franck; Broyer, M.; Compagnon, Isabelle; Dugourd, Philippe; Kulesza, Alexander; Mitrić, Roland; Bonačić‐Koutecký, Vlasta

doi:10.1002/anie.200902882

Cited by 21 publications

(14 citation statements)

References 38 publications

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“…Moreover, the enhancement in absorption and fluorescence by introducing metallic clusters such as silver or gold in hybrid systems 41,42 is expected also in thiol functionalized diamondoids, thus demonstrating attractive perspectives for numerous applications. We have identified the character of electronic transitions that are important for some photochemical and photophysical processes.…”

Section: Discussionmentioning

confidence: 99%

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Landt

Bostedt

Wolter

et al. 2010

The Journal of Chemical Physics

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Nanoscale hybrid systems are a new class of molecular aggregates that offer numerous new possibilities in materials design. Diamondoid thiols are promising nanoscale building blocks for such hybrid systems. They allow the incorporation of functional groups and the investigation of their effects on the unique materials' properties of diamondoids. Here we combine experimental data with ab initio theory to explore the optical properties of diamondoid thiols and their dependence on size and shape. Agreement between theoretically and experimentally obtained absorption spectra allows the identification of the nature of the optical transitions that are responsible for some photophysical and photochemical processes. We show that the optical properties of diamondoid thiols in the deep UV regime depend on the functionalization site but are largely size independent. Our findings provide an explanation for the disappearance of diamondoid UV photoluminescence upon thiolation for smaller diamondoids. However, our theoretical results indicate that for larger diamondoid thiols beyond the critical size of six diamondoid cages the lowest energy transitions are characterized by diamondoidlike states suggesting that UV luminescence may be regained.

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Section: Discussionmentioning

confidence: 99%

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Landt

Bostedt

Wolter

et al. 2010

The Journal of Chemical Physics

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“…Nowadays, the practical one-step “green” preparation protocols of several water-soluble Au NPs/NCs are extremely preferred [21,28,29,30]. During these processes, mainly the template-assisted preparation approaches are used, where dominant amines, like simple amino acids [31], peptides or proteins [32,33], dendrimers [34,35], and nucleotides [36,37,38,39], are applied, which have simultaneously a dual role as reducing and stabilizing ligand. The amines are a crucial class of the possible reducing agents, because they can be found in biological and chemical atmospheres.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Tetrachloroaurate(III) Ions With Bioligands: Role of the Thiol and Amine Functional Groups on the Structure and Optical Features of Gold Nanohybrid Systems

2019

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In this review, the presentation of the synthetic routes of plasmonic gold nanoparticles (Au NPs), fluorescent gold nanoclusters (Au NCs), as well as self-assembled Au-containing thiolated coordination polymers (Au CPs) was highlighted. We exclusively emphasize the gold products that are synthesized by the spontaneous interaction of tetrachloroaurate(III) ions (AuCl4¯) with bioligands using amine and thiolate derivatives, including mainly amino acids. The dominant role of the nature of the applied reducing molecules as well as the experimental conditions (concentration of the precursor metal ion, molar ratio of the AuCl4¯ ions and biomolecules; pH, temperature, etc.) of the syntheses on the size and structure-dependent optical properties of these gold nanohybrid materials have been summarized. While using the same reducing and stabilizing biomolecules, the main differences on the preparation conditions of Au NPs, Au NCs, and Au CPs have been interpreted and the reducing capabilities of various amino acids and thiolates have been compared. Moreover, various fabrication routes of thiol-stabilized plasmonic Au NPs, as well as fluorescent Au NCs and self-assembled Au CPs have been presented via the formation of –(Au(I)-SR)n– periodic structures as intermediates.

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“…Photodissociation measurements were obtained using a modified LCQ ion trap coupled to a tunable optical parametric oscillator (OPO) laser. [20] The laser light was focused at the center of the trap and the trapped ions were irradiated for 500 ms (10 laser shots). Mass spectra obtained after laser irradiation were recorded.…”

Section: Methodsmentioning

confidence: 99%

Doubly Charged Silver Clusters Stabilized by Tryptophan: Ag₄²⁺ as an Optical Marker for Monitoring Particle Growth

et al. 2010

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Gas‐Phase Synthesis and Intense Visible Absorption of Tryptophan–Gold Cations

Cited by 21 publications

References 38 publications

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Reduction of Tetrachloroaurate(III) Ions With Bioligands: Role of the Thiol and Amine Functional Groups on the Structure and Optical Features of Gold Nanohybrid Systems

Doubly Charged Silver Clusters Stabilized by Tryptophan: Ag₄²⁺ as an Optical Marker for Monitoring Particle Growth

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Gas‐Phase Synthesis and Intense Visible Absorption of Tryptophan–Gold Cations

Cited by 21 publications

References 38 publications

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Experimental and theoretical study of the absorption properties of thiolated diamondoids

Reduction of Tetrachloroaurate(III) Ions With Bioligands: Role of the Thiol and Amine Functional Groups on the Structure and Optical Features of Gold Nanohybrid Systems

Doubly Charged Silver Clusters Stabilized by Tryptophan: Ag42+ as an Optical Marker for Monitoring Particle Growth

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Doubly Charged Silver Clusters Stabilized by Tryptophan: Ag₄²⁺ as an Optical Marker for Monitoring Particle Growth