Photochemically generated reactive sites at ruthenium/gallium complexes: catalysis vs. cluster growth

Raphael Bühler; Maximilian Muhr; Johannes Stephan; Robert A. Wolf; Max Schütz; Christian Gemel; Roland A. Fischer

doi:10.1039/d3dt01847d

Photochemically generated reactive sites at ruthenium/gallium complexes: catalysis vs. cluster growth

Raphael Bühler
, Maximilian Muhr
, Johannes Stephan
, Robert A. Wolf
, Max Schütz
, Christian Gemel
, Roland A. Fischer

Chair of Inorganic and Organometallic Chemistry

Technical University of Munich

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

3 Scopus citations

Abstract

Irradiation of [Ru(GaCp*)₃(SiEt₃)H₃] (1) at 350 nm induces reductive elimination of dihydrogen and triethylsilane and generates unsaturated Ru/Ga species. This photochemically induced cascading reductive elimination processes generate the reactive intermediate [Ru(GaCp*)₃], which can be trapped by diphosphine coordination to yield the stable complex [(dppe)Ru(GaCp*)₃] (4). The photochemically generated RuGa₃ species is catalytically active in the hydrogenation of alkynes, which is further investigated by ¹H NMR and mass spectrometry. Formation of intermetallic Ru/Ga clusters is observed as a competing and for the catalytic activity of the species limiting side reaction.

Original language	English
Pages (from-to)	10905-10910
Number of pages	6
Journal	Dalton Transactions
Volume	52
Issue number	31
DOIs	https://doi.org/10.1039/d3dt01847d
State	Published - 20 Jul 2023

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title = "Photochemically generated reactive sites at ruthenium/gallium complexes: catalysis vs. cluster growth",

abstract = "Irradiation of [Ru(GaCp*)3(SiEt3)H3] (1) at 350 nm induces reductive elimination of dihydrogen and triethylsilane and generates unsaturated Ru/Ga species. This photochemically induced cascading reductive elimination processes generate the reactive intermediate [Ru(GaCp*)3], which can be trapped by diphosphine coordination to yield the stable complex [(dppe)Ru(GaCp*)3] (4). The photochemically generated RuGa3 species is catalytically active in the hydrogenation of alkynes, which is further investigated by 1H NMR and mass spectrometry. Formation of intermetallic Ru/Ga clusters is observed as a competing and for the catalytic activity of the species limiting side reaction.",

author = "Raphael B{\"u}hler and Maximilian Muhr and Johannes Stephan and Wolf, \{Robert A.\} and Max Sch{\"u}tz and Christian Gemel and Fischer, \{Roland A.\}",

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doi = "10.1039/d3dt01847d",

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TY - JOUR

T1 - Photochemically generated reactive sites at ruthenium/gallium complexes

T2 - catalysis vs. cluster growth

AU - Bühler, Raphael

AU - Muhr, Maximilian

AU - Stephan, Johannes

AU - Wolf, Robert A.

AU - Schütz, Max

AU - Gemel, Christian

AU - Fischer, Roland A.

PY - 2023/7/20

Y1 - 2023/7/20

N2 - Irradiation of [Ru(GaCp*)3(SiEt3)H3] (1) at 350 nm induces reductive elimination of dihydrogen and triethylsilane and generates unsaturated Ru/Ga species. This photochemically induced cascading reductive elimination processes generate the reactive intermediate [Ru(GaCp*)3], which can be trapped by diphosphine coordination to yield the stable complex [(dppe)Ru(GaCp*)3] (4). The photochemically generated RuGa3 species is catalytically active in the hydrogenation of alkynes, which is further investigated by 1H NMR and mass spectrometry. Formation of intermetallic Ru/Ga clusters is observed as a competing and for the catalytic activity of the species limiting side reaction.

AB - Irradiation of [Ru(GaCp*)3(SiEt3)H3] (1) at 350 nm induces reductive elimination of dihydrogen and triethylsilane and generates unsaturated Ru/Ga species. This photochemically induced cascading reductive elimination processes generate the reactive intermediate [Ru(GaCp*)3], which can be trapped by diphosphine coordination to yield the stable complex [(dppe)Ru(GaCp*)3] (4). The photochemically generated RuGa3 species is catalytically active in the hydrogenation of alkynes, which is further investigated by 1H NMR and mass spectrometry. Formation of intermetallic Ru/Ga clusters is observed as a competing and for the catalytic activity of the species limiting side reaction.

UR - https://www.scopus.com/pages/publications/85167333325

U2 - 10.1039/d3dt01847d

DO - 10.1039/d3dt01847d

M3 - Article

C2 - 37489254

AN - SCOPUS:85167333325

SN - 1477-9226

VL - 52

SP - 10905

EP - 10910

JO - Dalton Transactions

JF - Dalton Transactions

IS - 31

ER -

Photochemically generated reactive sites at ruthenium/gallium complexes: catalysis vs. cluster growth

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