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.

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.

PY - 1997/6/30

Y1 - 1997/6/30

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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KW - Osmium complexes

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