Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept

Abstract The synthesis of [Rh2(η5‐Cp)2(μ‐H)(μ‐PPh2)2]BF4 (2) by protonation reaction of the metal basic complex [Rh2(η5‐Cp)2(μ‐PPh2)2] (1) with tetrafluoroboric acid in diethyl ether is described. Complex salt 2 was obtained in high yield and fully characterized by spectroscopic means and X‐ray crys...

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Main Authors: Prof. Dr. Hans‐Christian Böttcher, Dr. Marion Graf, Dr. Peter Mayer, Prof. Dr. Manfred Scheer
Format: Article
Language:English
Published: Wiley-VCH 2020-10-01
Series:ChemistryOpen
Subjects:
Online Access:https://doi.org/10.1002/open.202000217
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author Prof. Dr. Hans‐Christian Böttcher
Dr. Marion Graf
Dr. Peter Mayer
Prof. Dr. Manfred Scheer
author_facet Prof. Dr. Hans‐Christian Böttcher
Dr. Marion Graf
Dr. Peter Mayer
Prof. Dr. Manfred Scheer
author_sort Prof. Dr. Hans‐Christian Böttcher
collection DOAJ
description Abstract The synthesis of [Rh2(η5‐Cp)2(μ‐H)(μ‐PPh2)2]BF4 (2) by protonation reaction of the metal basic complex [Rh2(η5‐Cp)2(μ‐PPh2)2] (1) with tetrafluoroboric acid in diethyl ether is described. Complex salt 2 was obtained in high yield and fully characterized by spectroscopic means and X‐ray crystal diffraction. Applying the isolobal analogy between H and the fragment Au(PPh3) as a synthetic strategy on the reaction of compound 2 with equimolar amounts of [Au(CH3)(PPh3)] in refluxing acetone resulted in the formation of the expected triangular cluster compound [Rh2{μ‐Au(PPh3)}(η5‐Cp)2(μ‐PPh2)2]BF4 (3) in good yield. Metal cluster salt 3 was fully characterized by spectroscopic data and its molecular structure in the crystal was determined by X‐ray diffraction. The structural comparison of the protonated dirhodium core in the cationic complex of 2 with the Rh2Au framework in 3 is in good accordance with the isolobal relation between H+ and Au+ because they share the respective same position in these closely related molecular structures.
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spelling doaj.art-5064f90f04634907bb526b12cd9dd4a92022-12-21T17:16:01ZengWiley-VCHChemistryOpen2191-13632020-10-0191099199510.1002/open.202000217Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality ConceptProf. Dr. Hans‐Christian Böttcher0Dr. Marion Graf1Dr. Peter Mayer2Prof. Dr. Manfred Scheer3Department Chemie Ludwig-Maximilians-Universität München Butenandtstraße 5–13 81377 München GermanyDepartment Chemie Ludwig-Maximilians-Universität München Butenandtstraße 5–13 81377 München GermanyDepartment Chemie Ludwig-Maximilians-Universität München Butenandtstraße 5–13 81377 München GermanyInstitut für Anorganische Chemie Universität Regensburg Universitätsstrasse 31 93040 Regensburg GermanyAbstract The synthesis of [Rh2(η5‐Cp)2(μ‐H)(μ‐PPh2)2]BF4 (2) by protonation reaction of the metal basic complex [Rh2(η5‐Cp)2(μ‐PPh2)2] (1) with tetrafluoroboric acid in diethyl ether is described. Complex salt 2 was obtained in high yield and fully characterized by spectroscopic means and X‐ray crystal diffraction. Applying the isolobal analogy between H and the fragment Au(PPh3) as a synthetic strategy on the reaction of compound 2 with equimolar amounts of [Au(CH3)(PPh3)] in refluxing acetone resulted in the formation of the expected triangular cluster compound [Rh2{μ‐Au(PPh3)}(η5‐Cp)2(μ‐PPh2)2]BF4 (3) in good yield. Metal cluster salt 3 was fully characterized by spectroscopic data and its molecular structure in the crystal was determined by X‐ray diffraction. The structural comparison of the protonated dirhodium core in the cationic complex of 2 with the Rh2Au framework in 3 is in good accordance with the isolobal relation between H+ and Au+ because they share the respective same position in these closely related molecular structures.https://doi.org/10.1002/open.202000217cyclopentadienyl compoundscrystal structuresgoldisolobality conceptrhodium
spellingShingle Prof. Dr. Hans‐Christian Böttcher
Dr. Marion Graf
Dr. Peter Mayer
Prof. Dr. Manfred Scheer
Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
ChemistryOpen
cyclopentadienyl compounds
crystal structures
gold
isolobality concept
rhodium
title Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
title_full Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
title_fullStr Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
title_full_unstemmed Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
title_short Synthesis and Characterization of a Novel Triangular Rh2Au Cluster Compound Inspired by the Isolobality Concept
title_sort synthesis and characterization of a novel triangular rh2au cluster compound inspired by the isolobality concept
topic cyclopentadienyl compounds
crystal structures
gold
isolobality concept
rhodium
url https://doi.org/10.1002/open.202000217
work_keys_str_mv AT profdrhanschristianbottcher synthesisandcharacterizationofanoveltriangularrh2auclustercompoundinspiredbytheisolobalityconcept
AT drmariongraf synthesisandcharacterizationofanoveltriangularrh2auclustercompoundinspiredbytheisolobalityconcept
AT drpetermayer synthesisandcharacterizationofanoveltriangularrh2auclustercompoundinspiredbytheisolobalityconcept
AT profdrmanfredscheer synthesisandcharacterizationofanoveltriangularrh2auclustercompoundinspiredbytheisolobalityconcept