All-Hydrocarbon-Ligated Superatomic Gold/Aluminum Clusters

Ivan Antsiburov; Max Schütz; Raphael Bühler; Maximilian Muhr; Johannes Stephan; Christian Gemel; Wilhelm Klein; Samia Kahlal; Jean Yves Saillard; Roland A. Fischer

doi:10.1021/acs.inorgchem.3c03790

All-Hydrocarbon-Ligated Superatomic Gold/Aluminum Clusters

Ivan Antsiburov, Max Schütz, Raphael Bühler, Maximilian Muhr, Johannes Stephan, Christian Gemel, Wilhelm Klein, Samia Kahlal, Jean Yves Saillard, Roland A. Fischer

Chair of Inorganic and Organometallic Chemistry

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Key strategies in cluster synthesis include the use of modulating agents (e.g., coordinating additives). We studied the influence of various phosphines exhibiting different steric and electronic properties on the reduction of the Au(I) precursor to Au(0) clusters. We report a synthesis of the bimetallic clusters [Au₆(AlCp*)₆] = [Au₆Al₆](Cp*)₆ (1) and [HAu₇(AlCp*)₆] = [HAu₇Al₆](Cp*)₆ (2) (Cp* = pentamethylcyclopentadiene) using Au(I) precursors and AlCp*. The cluster [Au₂(AlCp*)₅] = [Au₂Al₅](Cp*)₅ (3) was isolated and identified as an intermediate species in the reactions to 1 and 2. The processes of cluster growth and degradation were investigated by in situ ¹H NMR and LIFDI-MS techniques. The structures of 1 and 2 were established by DFT geometry optimization. These octahedral clusters can both be described as closed-shell 18-electron superatoms.

Original language	English
Pages (from-to)	3749-3756
Number of pages	8
Journal	Inorganic Chemistry
Volume	63
Issue number	8
DOIs	https://doi.org/10.1021/acs.inorgchem.3c03790
State	Published - 26 Feb 2024

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title = "All-Hydrocarbon-Ligated Superatomic Gold/Aluminum Clusters",

abstract = "Key strategies in cluster synthesis include the use of modulating agents (e.g., coordinating additives). We studied the influence of various phosphines exhibiting different steric and electronic properties on the reduction of the Au(I) precursor to Au(0) clusters. We report a synthesis of the bimetallic clusters [Au6(AlCp*)6] = [Au6Al6](Cp*)6 (1) and [HAu7(AlCp*)6] = [HAu7Al6](Cp*)6 (2) (Cp* = pentamethylcyclopentadiene) using Au(I) precursors and AlCp*. The cluster [Au2(AlCp*)5] = [Au2Al5](Cp*)5 (3) was isolated and identified as an intermediate species in the reactions to 1 and 2. The processes of cluster growth and degradation were investigated by in situ 1H NMR and LIFDI-MS techniques. The structures of 1 and 2 were established by DFT geometry optimization. These octahedral clusters can both be described as closed-shell 18-electron superatoms.",

author = "Ivan Antsiburov and Max Sch{\"u}tz and Raphael B{\"u}hler and Maximilian Muhr and Johannes Stephan and Christian Gemel and Wilhelm Klein and Samia Kahlal and Saillard, {Jean Yves} and Fischer, {Roland A.}",

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doi = "10.1021/acs.inorgchem.3c03790",

language = "English",

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T1 - All-Hydrocarbon-Ligated Superatomic Gold/Aluminum Clusters

AU - Antsiburov, Ivan

AU - Schütz, Max

AU - Bühler, Raphael

AU - Muhr, Maximilian

AU - Stephan, Johannes

AU - Gemel, Christian

AU - Klein, Wilhelm

AU - Kahlal, Samia

AU - Saillard, Jean Yves

AU - Fischer, Roland A.

PY - 2024/2/26

Y1 - 2024/2/26

N2 - Key strategies in cluster synthesis include the use of modulating agents (e.g., coordinating additives). We studied the influence of various phosphines exhibiting different steric and electronic properties on the reduction of the Au(I) precursor to Au(0) clusters. We report a synthesis of the bimetallic clusters [Au6(AlCp*)6] = [Au6Al6](Cp*)6 (1) and [HAu7(AlCp*)6] = [HAu7Al6](Cp*)6 (2) (Cp* = pentamethylcyclopentadiene) using Au(I) precursors and AlCp*. The cluster [Au2(AlCp*)5] = [Au2Al5](Cp*)5 (3) was isolated and identified as an intermediate species in the reactions to 1 and 2. The processes of cluster growth and degradation were investigated by in situ 1H NMR and LIFDI-MS techniques. The structures of 1 and 2 were established by DFT geometry optimization. These octahedral clusters can both be described as closed-shell 18-electron superatoms.

AB - Key strategies in cluster synthesis include the use of modulating agents (e.g., coordinating additives). We studied the influence of various phosphines exhibiting different steric and electronic properties on the reduction of the Au(I) precursor to Au(0) clusters. We report a synthesis of the bimetallic clusters [Au6(AlCp*)6] = [Au6Al6](Cp*)6 (1) and [HAu7(AlCp*)6] = [HAu7Al6](Cp*)6 (2) (Cp* = pentamethylcyclopentadiene) using Au(I) precursors and AlCp*. The cluster [Au2(AlCp*)5] = [Au2Al5](Cp*)5 (3) was isolated and identified as an intermediate species in the reactions to 1 and 2. The processes of cluster growth and degradation were investigated by in situ 1H NMR and LIFDI-MS techniques. The structures of 1 and 2 were established by DFT geometry optimization. These octahedral clusters can both be described as closed-shell 18-electron superatoms.

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U2 - 10.1021/acs.inorgchem.3c03790

DO - 10.1021/acs.inorgchem.3c03790

M3 - Article

C2 - 38335041

AN - SCOPUS:85186166122

SN - 0020-1669

VL - 63

SP - 3749

EP - 3756

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 8

ER -

All-Hydrocarbon-Ligated Superatomic Gold/Aluminum Clusters

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