The crystal, molecular and electronic structure of[Os3(μ-H)(CO)10(μ-PPh2)]

Brian F.G. Johnson; Jack Lewis; Ebbe Nordlander; Paul R. Raithby; Catherine E. Housecroft

doi:10.1016/s0020-1693(97)05497-2

The crystal, molecular and electronic structure of[Os₃(μ-H)(CO)₁₀(μ-PPh₂)]

Brian F.G. Johnson, Jack Lewis, Ebbe Nordlander, Paul R. Raithby, Catherine E. Housecroft

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

10 Citations (SciVal)

Abstract

The crystal and molecular structure of the phosphido-bridged cluster [Os₃(μ-H)(CO)₁₀(μ-PPh₂)] has been determined. The cluster consists of an isosceles Os₃ triangle. One of the Os-Os edges is bridged by the μ-PPh₂ moiety as well as the hydride. Steric interaction between the phenyl groups and the carbonyl ligands dictate the orientation of the former. The doubly bridged Os-Os edge is slightly longer than the other two. A Fenske-Hall molecular orbital analysis of the bonding in [Os₃(μ-H)(CO)₁₀(μ-PPh₂)] and the related clusters [M₃(μ-H)(CO)₁₀(μ-PPhH)] (M = Ru, Os) indicates that the observed lengthening of the bridged Os-Os edge may be attributed to an electronic effect. Steric factors influence bond lengths and bond angles in these clusters to a greater extent than electronic factors.

Original language	English
Pages (from-to)	345-350
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	259
Issue number	1-2
DOIs	https://doi.org/10.1016/s0020-1693(97)05497-2
Publication status	Published - 30 Jun 1997

Bibliographical note

Funding Information:
We thank SERC for financial support. E.N. thanks the Cambridge Philosophical Society, the Adolf Lindgren Foundation and the Royal Swedish Academy of Science for financial support; King’s College, Cambridge, for the award of an External Research Studentship and the Committee of Vice-Chancellors and Principals of the United Kingdom for an O.R.S. award.

Funding

We thank SERC for financial support. E.N. thanks the Cambridge Philosophical Society, the Adolf Lindgren Foundation and the Royal Swedish Academy of Science for financial support; King’s College, Cambridge, for the award of an External Research Studentship and the Committee of Vice-Chancellors and Principals of the United Kingdom for an O.R.S. award.

Keywords

Cluster complexes
Crystal structures
Electronic structures
Hydrido-bridged complexes
Osmium complexes
Phosphido-bridged complexes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/s0020-1693(97)05497-2

Cite this

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title = "The crystal, molecular and electronic structure of[Os3(μ-H)(CO)10(μ-PPh2)]",

abstract = "The crystal and molecular structure of the phosphido-bridged cluster [Os3(μ-H)(CO)10(μ-PPh2)] has been determined. The cluster consists of an isosceles Os3 triangle. One of the Os-Os edges is bridged by the μ-PPh2 moiety as well as the hydride. Steric interaction between the phenyl groups and the carbonyl ligands dictate the orientation of the former. The doubly bridged Os-Os edge is slightly longer than the other two. A Fenske-Hall molecular orbital analysis of the bonding in [Os3(μ-H)(CO)10(μ-PPh2)] and the related clusters [M3(μ-H)(CO)10(μ-PPhH)] (M = Ru, Os) indicates that the observed lengthening of the bridged Os-Os edge may be attributed to an electronic effect. Steric factors influence bond lengths and bond angles in these clusters to a greater extent than electronic factors.",

keywords = "Cluster complexes, Crystal structures, Electronic structures, Hydrido-bridged complexes, Osmium complexes, Phosphido-bridged complexes",

author = "Johnson, {Brian F.G.} and Jack Lewis and Ebbe Nordlander and Raithby, {Paul R.} and Housecroft, {Catherine E.}",

note = "Funding Information: We thank SERC for financial support. E.N. thanks the Cambridge Philosophical Society, the Adolf Lindgren Foundation and the Royal Swedish Academy of Science for financial support; King{\textquoteright}s College, Cambridge, for the award of an External Research Studentship and the Committee of Vice-Chancellors and Principals of the United Kingdom for an O.R.S. award.",

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AU - Johnson, Brian F.G.

AU - Lewis, Jack

AU - Nordlander, Ebbe

AU - Raithby, Paul R.

AU - Housecroft, Catherine E.

N1 - Funding Information: We thank SERC for financial support. E.N. thanks the Cambridge Philosophical Society, the Adolf Lindgren Foundation and the Royal Swedish Academy of Science for financial support; King’s College, Cambridge, for the award of an External Research Studentship and the Committee of Vice-Chancellors and Principals of the United Kingdom for an O.R.S. award.

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N2 - The crystal and molecular structure of the phosphido-bridged cluster [Os3(μ-H)(CO)10(μ-PPh2)] has been determined. The cluster consists of an isosceles Os3 triangle. One of the Os-Os edges is bridged by the μ-PPh2 moiety as well as the hydride. Steric interaction between the phenyl groups and the carbonyl ligands dictate the orientation of the former. The doubly bridged Os-Os edge is slightly longer than the other two. A Fenske-Hall molecular orbital analysis of the bonding in [Os3(μ-H)(CO)10(μ-PPh2)] and the related clusters [M3(μ-H)(CO)10(μ-PPhH)] (M = Ru, Os) indicates that the observed lengthening of the bridged Os-Os edge may be attributed to an electronic effect. Steric factors influence bond lengths and bond angles in these clusters to a greater extent than electronic factors.

AB - The crystal and molecular structure of the phosphido-bridged cluster [Os3(μ-H)(CO)10(μ-PPh2)] has been determined. The cluster consists of an isosceles Os3 triangle. One of the Os-Os edges is bridged by the μ-PPh2 moiety as well as the hydride. Steric interaction between the phenyl groups and the carbonyl ligands dictate the orientation of the former. The doubly bridged Os-Os edge is slightly longer than the other two. A Fenske-Hall molecular orbital analysis of the bonding in [Os3(μ-H)(CO)10(μ-PPh2)] and the related clusters [M3(μ-H)(CO)10(μ-PPhH)] (M = Ru, Os) indicates that the observed lengthening of the bridged Os-Os edge may be attributed to an electronic effect. Steric factors influence bond lengths and bond angles in these clusters to a greater extent than electronic factors.

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