Platinum-Osmium Heterometallic Clusters Containing N-Heterocyclic Carbene Ligands and an Electron-Deficient Tetraosmium By-Product

Yu Liu; Rakesh Ganguly; Han Vinh Huynh; Weng Kee Leong

doi:10.1002/ejic.201900105

Platinum-Osmium Heterometallic Clusters Containing N-Heterocyclic Carbene Ligands and an Electron-Deficient Tetraosmium By-Product

Yu Liu, Rakesh Ganguly, Han Vinh Huynh, Weng Kee Leong^*

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

The room temperature reaction of [Os₃(CO)₁₂] (1) with three molar equivalents of [PtCl(allyl)(NHC)] (2) in the presence of KOtBu afforded the heterometallic clusters [PtOs₃(CO)₁₂(NHC)] (3), [Pt₂Os₃(CO)₁₂(NHC)₂] (4), and [Pt₃Os₃(CO)₁₂(NHC)₃] (5), together with a trace amount of the tetraosmium cluster [Os₄(CO)₁₀(µ-H)₂(NHC)] (6). The reaction pathway is thus similar to that for Pd analogues, with the exception of cluster 6. Unlike their Pd analogues, however, these clusters do not appear to readily interconvert. With a valence electron count of 58, clusters 6 are deficient by four electrons.

Original language	English
Pages (from-to)	1966-1969
Number of pages	4
Journal	European Journal of Inorganic Chemistry
Volume	2019
Issue number	14
DOIs	https://doi.org/10.1002/ejic.201900105
Publication status	Published - Apr 16 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

ASJC Scopus Subject Areas

Inorganic Chemistry

Keywords

Carbene ligands
Carbonyl ligands
Heterometallic complexes
Osmium
Platinum

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title = "Platinum-Osmium Heterometallic Clusters Containing N-Heterocyclic Carbene Ligands and an Electron-Deficient Tetraosmium By-Product",

abstract = "The room temperature reaction of [Os3(CO)12] (1) with three molar equivalents of [PtCl(allyl)(NHC)] (2) in the presence of KOtBu afforded the heterometallic clusters [PtOs3(CO)12(NHC)] (3), [Pt2Os3(CO)12(NHC)2] (4), and [Pt3Os3(CO)12(NHC)3] (5), together with a trace amount of the tetraosmium cluster [Os4(CO)10(µ-H)2(NHC)] (6). The reaction pathway is thus similar to that for Pd analogues, with the exception of cluster 6. Unlike their Pd analogues, however, these clusters do not appear to readily interconvert. With a valence electron count of 58, clusters 6 are deficient by four electrons.",

keywords = "Carbene ligands, Carbonyl ligands, Heterometallic complexes, Osmium, Platinum",

author = "Yu Liu and Rakesh Ganguly and Huynh, {Han Vinh} and Leong, {Weng Kee}",

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doi = "10.1002/ejic.201900105",

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T1 - Platinum-Osmium Heterometallic Clusters Containing N-Heterocyclic Carbene Ligands and an Electron-Deficient Tetraosmium By-Product

AU - Liu, Yu

AU - Ganguly, Rakesh

AU - Huynh, Han Vinh

AU - Leong, Weng Kee

PY - 2019/4/16

Y1 - 2019/4/16

N2 - The room temperature reaction of [Os3(CO)12] (1) with three molar equivalents of [PtCl(allyl)(NHC)] (2) in the presence of KOtBu afforded the heterometallic clusters [PtOs3(CO)12(NHC)] (3), [Pt2Os3(CO)12(NHC)2] (4), and [Pt3Os3(CO)12(NHC)3] (5), together with a trace amount of the tetraosmium cluster [Os4(CO)10(µ-H)2(NHC)] (6). The reaction pathway is thus similar to that for Pd analogues, with the exception of cluster 6. Unlike their Pd analogues, however, these clusters do not appear to readily interconvert. With a valence electron count of 58, clusters 6 are deficient by four electrons.

AB - The room temperature reaction of [Os3(CO)12] (1) with three molar equivalents of [PtCl(allyl)(NHC)] (2) in the presence of KOtBu afforded the heterometallic clusters [PtOs3(CO)12(NHC)] (3), [Pt2Os3(CO)12(NHC)2] (4), and [Pt3Os3(CO)12(NHC)3] (5), together with a trace amount of the tetraosmium cluster [Os4(CO)10(µ-H)2(NHC)] (6). The reaction pathway is thus similar to that for Pd analogues, with the exception of cluster 6. Unlike their Pd analogues, however, these clusters do not appear to readily interconvert. With a valence electron count of 58, clusters 6 are deficient by four electrons.

KW - Carbene ligands

KW - Carbonyl ligands

KW - Heterometallic complexes

KW - Osmium

KW - Platinum

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DO - 10.1002/ejic.201900105

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JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 14

ER -

Platinum-Osmium Heterometallic Clusters Containing N-Heterocyclic Carbene Ligands and an Electron-Deficient Tetraosmium By-Product

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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