Fluxional behaviour of the binary carbonyls. A comparison of the isoelectronic and isostructural tetranuclear clusters: Co4(CO)12, HFeCo3(CO)12 and[FeCo3(CO)12]-

Silvio Aime; Domenico Osella; Roberto Gobetto; Brian F.G. Johnson; Luciano Milone

doi:10.1016/S0020-1693(00)88952-5

Fluxional behaviour of the binary carbonyls. A comparison of the isoelectronic and isostructural tetranuclear clusters: Co₄(CO)₁₂, HFeCo₃(CO)₁₂ and[FeCo₃(CO)₁₂]^-

Silvio Aime, Domenico Osella, Roberto Gobetto, Brian F.G. Johnson, Luciano Milone

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The ¹³C NMR spectra of ¹³CO enriched samples of the cluster molecules HFeCo₃(CO)₁₂ and [FeCo₃(CO)₁₂]^- have been recorded over a wide temperature range. In the low temperature limiting spectra of these species four resonances of equal intensity were observed, in each case consistent with their proposed molecular geometries. As the temperature is raised two distinct fluxional processes are observed. The first corresponds to interconversion of the nine CO-ligands about the Co₃ basal plane and the second to total scrambling over the FeCo₃ tetrahedron.

Lingua originale	Inglese
pagine (da-a)	141-145
Numero di pagine	5
Rivista	Inorganica Chimica Acta
Volume	68
Numero di pubblicazione	C
DOI	https://doi.org/10.1016/S0020-1693(00)88952-5
Stato di pubblicazione	Pubblicato - 1983
Pubblicato esternamente	Sì

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10.1016/S0020-1693(00)88952-5

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@article{4e95dddbecbc4a9889885adc6b1370d3,

title = "Fluxional behaviour of the binary carbonyls. A comparison of the isoelectronic and isostructural tetranuclear clusters: Co4(CO)12, HFeCo3(CO)12 and[FeCo3(CO)12]-",

abstract = "The 13C NMR spectra of 13CO enriched samples of the cluster molecules HFeCo3(CO)12 and [FeCo3(CO)12]- have been recorded over a wide temperature range. In the low temperature limiting spectra of these species four resonances of equal intensity were observed, in each case consistent with their proposed molecular geometries. As the temperature is raised two distinct fluxional processes are observed. The first corresponds to interconversion of the nine CO-ligands about the Co3 basal plane and the second to total scrambling over the FeCo3 tetrahedron.",

author = "Silvio Aime and Domenico Osella and Roberto Gobetto and Johnson, {Brian F.G.} and Luciano Milone",

note = "Funding Information: We thank the Accademia Nazionale Dei Lincei - Royal Society for the award of a fellowship (to D. 0); the University of London and S.R.C. for the use of the Bruker WH-400 at Queen Mary College under the ULIRS scheme.",

year = "1983",

doi = "10.1016/S0020-1693(00)88952-5",

language = "English",

volume = "68",

pages = "141--145",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

number = "C",

}

Fluxional behaviour of the binary carbonyls. A comparison of the isoelectronic and isostructural tetranuclear clusters: Co₄(CO)₁₂, HFeCo₃(CO)₁₂ and[FeCo₃(CO)₁₂]^-. / Aime, Silvio; Osella, Domenico; Gobetto, Roberto et al.
In: Inorganica Chimica Acta, Vol. 68, N. C, 1983, pag. 141-145.

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

TY - JOUR

T1 - Fluxional behaviour of the binary carbonyls. A comparison of the isoelectronic and isostructural tetranuclear clusters

T2 - Co4(CO)12, HFeCo3(CO)12 and[FeCo3(CO)12]-

AU - Aime, Silvio

AU - Osella, Domenico

AU - Gobetto, Roberto

AU - Johnson, Brian F.G.

AU - Milone, Luciano

N1 - Funding Information: We thank the Accademia Nazionale Dei Lincei - Royal Society for the award of a fellowship (to D. 0); the University of London and S.R.C. for the use of the Bruker WH-400 at Queen Mary College under the ULIRS scheme.

PY - 1983

Y1 - 1983

N2 - The 13C NMR spectra of 13CO enriched samples of the cluster molecules HFeCo3(CO)12 and [FeCo3(CO)12]- have been recorded over a wide temperature range. In the low temperature limiting spectra of these species four resonances of equal intensity were observed, in each case consistent with their proposed molecular geometries. As the temperature is raised two distinct fluxional processes are observed. The first corresponds to interconversion of the nine CO-ligands about the Co3 basal plane and the second to total scrambling over the FeCo3 tetrahedron.

AB - The 13C NMR spectra of 13CO enriched samples of the cluster molecules HFeCo3(CO)12 and [FeCo3(CO)12]- have been recorded over a wide temperature range. In the low temperature limiting spectra of these species four resonances of equal intensity were observed, in each case consistent with their proposed molecular geometries. As the temperature is raised two distinct fluxional processes are observed. The first corresponds to interconversion of the nine CO-ligands about the Co3 basal plane and the second to total scrambling over the FeCo3 tetrahedron.

UR - http://www.scopus.com/inward/record.url?scp=0000280687&partnerID=8YFLogxK

U2 - 10.1016/S0020-1693(00)88952-5

DO - 10.1016/S0020-1693(00)88952-5

M3 - Article

SN - 0020-1693

VL - 68

SP - 141

EP - 145

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - C