Synthesis, Characterization and Structural Properties of Some Heterobimetallic Carbonyl Clusters Derived from Diethynylsilane and Diethynyldisilane Ligands

Chun Kin Wong; Guo Liang Lu; Cheuk Lam HO; Wai Yeung WONG; Zhenyang Lin

doi:10.1007/s10876-012-0489-4

Synthesis, Characterization and Structural Properties of Some Heterobimetallic Carbonyl Clusters Derived from Diethynylsilane and Diethynyldisilane Ligands

Chun Kin Wong, Guo Liang Lu, Cheuk Lam HO, Wai Yeung WONG^*, Zhenyang Lin

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

4 Citations (Scopus)

Abstract

We report the synthesis of some heterobimetallic carbonyl clusters of groups 8 and 9 derived from diethynylsilane and diethynyldisilane ligands. The triosmium carbonyl clusters containing a pendant acetylene unit [(μ-CO)Os ₃(CO) ₉(μ ₃-η ²-HC≡C-E-C≡CH)] [E = Si(CH ₃) ₂, Si(CH ₃) ₂-Si(CH ₃) ₂ and SiPh ₂] were prepared and subsequently used for mixed-metal cluster formation. New diyne complexes of the type [{(μ-CO)Os ₃(CO) ₉}{Co ₂(CO) ₆}(μ ₃-η ²:η ²-diyne)] and [{(μ-CO)Os ₃(CO) ₉}{(μ-H)Ru ₃(CO) ₉}(μ ₃-η ²:μ ₃-η ², η ²-diyne)] [diyne = HC≡CSi(CH ₃) ₂C≡CH, HC≡CSi(CH ₃) ₂-Si(CH ₃) ₂C≡CH or HC≡CSi(Ph) ₂C≡CH] have been prepared in good yields from the reaction of [(μ-CO)Os ₃(CO) ₉(μ ₃-η ²-HC≡C-E-C≡CH)] with a molar equivalent of [Co ₂(CO) ₈] and [Ru ₃(CO) ₁₂], respectively. All the new heterobimetallic compounds have been characterized by IR and ¹H NMR spectroscopy and mass spectrometry. The X-ray crystal structures and computational analyses based on density functional theory of these three molecules have been studied. Structurally, the dicobalt species adopts a pseudo-tetrahedral Co ₂C ₂ core with the alkyne bond which lies essentially perpendicular to the Co-Co vector. For the mixed osmium-ruthenium analogue, the hexanuclear carbonyl cluster consist of two trinuclear metal cores with the μ ₃-(η ²-{pipe}{pipe}) bonding mode for the acetylene group in the former case and the μ ₃-η ², η ² bonding mode in the latter one.

Original language	English
Pages (from-to)	885-900
Number of pages	16
Journal	Journal of Cluster Science
Volume	23
Issue number	3
DOIs	https://doi.org/10.1007/s10876-012-0489-4
Publication status	Published - Sept 2012

Scopus Subject Areas

Biochemistry
Chemistry(all)
Materials Science(all)
Condensed Matter Physics

User-Defined Keywords

Alkyne
Cobalt
Mixed-metal cluster
Osmium
Ruthenium

Access to Document

10.1007/s10876-012-0489-4

Cite this

@article{85aac105040d43f8a7b724d33182f629,

title = "Synthesis, Characterization and Structural Properties of Some Heterobimetallic Carbonyl Clusters Derived from Diethynylsilane and Diethynyldisilane Ligands",

abstract = "We report the synthesis of some heterobimetallic carbonyl clusters of groups 8 and 9 derived from diethynylsilane and diethynyldisilane ligands. The triosmium carbonyl clusters containing a pendant acetylene unit [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] [E = Si(CH 3) 2, Si(CH 3) 2-Si(CH 3) 2 and SiPh 2] were prepared and subsequently used for mixed-metal cluster formation. New diyne complexes of the type [{(μ-CO)Os 3(CO) 9}{Co 2(CO) 6}(μ 3-η 2:η 2-diyne)] and [{(μ-CO)Os 3(CO) 9}{(μ-H)Ru 3(CO) 9}(μ 3-η 2:μ 3-η 2, η 2-diyne)] [diyne = HC≡CSi(CH 3) 2C≡CH, HC≡CSi(CH 3) 2-Si(CH 3) 2C≡CH or HC≡CSi(Ph) 2C≡CH] have been prepared in good yields from the reaction of [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] with a molar equivalent of [Co 2(CO) 8] and [Ru 3(CO) 12], respectively. All the new heterobimetallic compounds have been characterized by IR and 1H NMR spectroscopy and mass spectrometry. The X-ray crystal structures and computational analyses based on density functional theory of these three molecules have been studied. Structurally, the dicobalt species adopts a pseudo-tetrahedral Co 2C 2 core with the alkyne bond which lies essentially perpendicular to the Co-Co vector. For the mixed osmium-ruthenium analogue, the hexanuclear carbonyl cluster consist of two trinuclear metal cores with the μ 3-(η 2-{pipe}{pipe}) bonding mode for the acetylene group in the former case and the μ 3-η 2, η 2 bonding mode in the latter one.",

keywords = "Alkyne, Cobalt, Mixed-metal cluster, Osmium, Ruthenium",

author = "Wong, {Chun Kin} and Lu, {Guo Liang} and HO, {Cheuk Lam} and WONG, {Wai Yeung} and Zhenyang Lin",

note = "Funding Information: Acknowledgments Financial support from the Hong Kong Research Grants Council of HKSAR (HKBU202508) and Faculty Research Grants of Hong Kong Baptist University (FRG2/11-12/156) is gratefully acknowledged.",

year = "2012",

month = sep,

doi = "10.1007/s10876-012-0489-4",

language = "English",

volume = "23",

pages = "885--900",

journal = "Journal of Cluster Science",

issn = "1040-7278",

publisher = "Springer New York",

number = "3",

}

TY - JOUR

T1 - Synthesis, Characterization and Structural Properties of Some Heterobimetallic Carbonyl Clusters Derived from Diethynylsilane and Diethynyldisilane Ligands

AU - Wong, Chun Kin

AU - Lu, Guo Liang

AU - HO, Cheuk Lam

AU - WONG, Wai Yeung

AU - Lin, Zhenyang

N1 - Funding Information: Acknowledgments Financial support from the Hong Kong Research Grants Council of HKSAR (HKBU202508) and Faculty Research Grants of Hong Kong Baptist University (FRG2/11-12/156) is gratefully acknowledged.

PY - 2012/9

Y1 - 2012/9

N2 - We report the synthesis of some heterobimetallic carbonyl clusters of groups 8 and 9 derived from diethynylsilane and diethynyldisilane ligands. The triosmium carbonyl clusters containing a pendant acetylene unit [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] [E = Si(CH 3) 2, Si(CH 3) 2-Si(CH 3) 2 and SiPh 2] were prepared and subsequently used for mixed-metal cluster formation. New diyne complexes of the type [{(μ-CO)Os 3(CO) 9}{Co 2(CO) 6}(μ 3-η 2:η 2-diyne)] and [{(μ-CO)Os 3(CO) 9}{(μ-H)Ru 3(CO) 9}(μ 3-η 2:μ 3-η 2, η 2-diyne)] [diyne = HC≡CSi(CH 3) 2C≡CH, HC≡CSi(CH 3) 2-Si(CH 3) 2C≡CH or HC≡CSi(Ph) 2C≡CH] have been prepared in good yields from the reaction of [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] with a molar equivalent of [Co 2(CO) 8] and [Ru 3(CO) 12], respectively. All the new heterobimetallic compounds have been characterized by IR and 1H NMR spectroscopy and mass spectrometry. The X-ray crystal structures and computational analyses based on density functional theory of these three molecules have been studied. Structurally, the dicobalt species adopts a pseudo-tetrahedral Co 2C 2 core with the alkyne bond which lies essentially perpendicular to the Co-Co vector. For the mixed osmium-ruthenium analogue, the hexanuclear carbonyl cluster consist of two trinuclear metal cores with the μ 3-(η 2-{pipe}{pipe}) bonding mode for the acetylene group in the former case and the μ 3-η 2, η 2 bonding mode in the latter one.

AB - We report the synthesis of some heterobimetallic carbonyl clusters of groups 8 and 9 derived from diethynylsilane and diethynyldisilane ligands. The triosmium carbonyl clusters containing a pendant acetylene unit [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] [E = Si(CH 3) 2, Si(CH 3) 2-Si(CH 3) 2 and SiPh 2] were prepared and subsequently used for mixed-metal cluster formation. New diyne complexes of the type [{(μ-CO)Os 3(CO) 9}{Co 2(CO) 6}(μ 3-η 2:η 2-diyne)] and [{(μ-CO)Os 3(CO) 9}{(μ-H)Ru 3(CO) 9}(μ 3-η 2:μ 3-η 2, η 2-diyne)] [diyne = HC≡CSi(CH 3) 2C≡CH, HC≡CSi(CH 3) 2-Si(CH 3) 2C≡CH or HC≡CSi(Ph) 2C≡CH] have been prepared in good yields from the reaction of [(μ-CO)Os 3(CO) 9(μ 3-η 2-HC≡C-E-C≡CH)] with a molar equivalent of [Co 2(CO) 8] and [Ru 3(CO) 12], respectively. All the new heterobimetallic compounds have been characterized by IR and 1H NMR spectroscopy and mass spectrometry. The X-ray crystal structures and computational analyses based on density functional theory of these three molecules have been studied. Structurally, the dicobalt species adopts a pseudo-tetrahedral Co 2C 2 core with the alkyne bond which lies essentially perpendicular to the Co-Co vector. For the mixed osmium-ruthenium analogue, the hexanuclear carbonyl cluster consist of two trinuclear metal cores with the μ 3-(η 2-{pipe}{pipe}) bonding mode for the acetylene group in the former case and the μ 3-η 2, η 2 bonding mode in the latter one.

KW - Alkyne

KW - Cobalt

KW - Mixed-metal cluster

KW - Osmium

KW - Ruthenium

UR - http://www.scopus.com/inward/record.url?scp=84865416065&partnerID=8YFLogxK

U2 - 10.1007/s10876-012-0489-4

DO - 10.1007/s10876-012-0489-4

M3 - Journal article

AN - SCOPUS:84865416065

SN - 1040-7278

VL - 23

SP - 885

EP - 900

JO - Journal of Cluster Science

JF - Journal of Cluster Science

IS - 3

ER -

Synthesis, Characterization and Structural Properties of Some Heterobimetallic Carbonyl Clusters Derived from Diethynylsilane and Diethynyldisilane Ligands

Abstract

Scopus Subject Areas

User-Defined Keywords

Access to Document

Other files and links

Fingerprint

Cite this