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

Research output: Contribution to journal › Article › 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.

Original language	English
Pages (from-to)	141-145
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	68
Issue number	C
DOIs	https://doi.org/10.1016/S0020-1693(00)88952-5
Publication status	Published - 1983
Externally published	Yes

Access to Document

10.1016/S0020-1693(00)88952-5

Cite this

@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",

}

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 - https://www.scopus.com/pages/publications/0000280687

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

ER -

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

Access to Document

Other files and links

Fingerprint

Cite this