The crystal and molecular structure of [Os6(μ-H)(CO)21 (NCMe)(μ-PH2)]

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

The crystal and molecular structure of [Os₆(μ-H)(CO)₂₁ (NCMe)(μ-PH₂)]

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

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

Abstract

The crystal structure of the phosphide-bridged cluster [Os₆(μ-H)(CO)₂₁(NCMe)(μ-PH₂)] 4 has been determined. The cluster consists of two Os₃ triangles which are linked by a PH₂ moiety which is terminally bound to each triangle. The acetonitrile ligand is axially coordinated and the hydride bridges the Os-Os edge to which the phosphide moiety and the acetonitrile are coordinated. The molecular structure of 4 resembles those of the related clusters [Os₆(μ-H)(CO)₂₂(μ-PH₂)] 1 and [Os₆(μ-H)(CO)₂₁(CNBu^t)(μ-PH₂)] 2 although the dihedral angles between the two osmium triangles vary for 1, 2 and 4. The relative orientation of the two linked metal triangles in 4 (as well as 1 and 2) differs from that of the phosphite-substituted analogue [Os₆ (μ-H)(CO)₂₀{P(OMe)₃}₂(μ-PH ₂)]₃; this difference is attributed to steric factors.

Original language	English
Pages (from-to)	3463-3467
Number of pages	5
Journal	Polyhedron
Volume	16
Issue number	19
Publication status	Published - 4 Feb 1997

Keywords

Crystal structure
Osmium
Phosphide bridge

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Cite this

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title = "The crystal and molecular structure of [Os6(μ-H)(CO)21 (NCMe)(μ-PH2)]",

abstract = "The crystal structure of the phosphide-bridged cluster [Os6(μ-H)(CO)21(NCMe)(μ-PH2)] 4 has been determined. The cluster consists of two Os3 triangles which are linked by a PH2 moiety which is terminally bound to each triangle. The acetonitrile ligand is axially coordinated and the hydride bridges the Os-Os edge to which the phosphide moiety and the acetonitrile are coordinated. The molecular structure of 4 resembles those of the related clusters [Os6(μ-H)(CO)22(μ-PH2)] 1 and [Os6(μ-H)(CO)21(CNBut)(μ-PH2)] 2 although the dihedral angles between the two osmium triangles vary for 1, 2 and 4. The relative orientation of the two linked metal triangles in 4 (as well as 1 and 2) differs from that of the phosphite-substituted analogue [Os6 (μ-H)(CO)20{P(OMe)3}2(μ-PH 2)]3; this difference is attributed to steric factors.",

keywords = "Crystal structure, Osmium, Phosphide bridge",

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T1 - The crystal and molecular structure of [Os6(μ-H)(CO)21 (NCMe)(μ-PH2)]

AU - Johnson, Brian F.G.

AU - Lewis, Jack

AU - Nordlander, Ebbe

AU - Raithby, Paul R.

PY - 1997/2/4

Y1 - 1997/2/4

N2 - The crystal structure of the phosphide-bridged cluster [Os6(μ-H)(CO)21(NCMe)(μ-PH2)] 4 has been determined. The cluster consists of two Os3 triangles which are linked by a PH2 moiety which is terminally bound to each triangle. The acetonitrile ligand is axially coordinated and the hydride bridges the Os-Os edge to which the phosphide moiety and the acetonitrile are coordinated. The molecular structure of 4 resembles those of the related clusters [Os6(μ-H)(CO)22(μ-PH2)] 1 and [Os6(μ-H)(CO)21(CNBut)(μ-PH2)] 2 although the dihedral angles between the two osmium triangles vary for 1, 2 and 4. The relative orientation of the two linked metal triangles in 4 (as well as 1 and 2) differs from that of the phosphite-substituted analogue [Os6 (μ-H)(CO)20{P(OMe)3}2(μ-PH 2)]3; this difference is attributed to steric factors.

AB - The crystal structure of the phosphide-bridged cluster [Os6(μ-H)(CO)21(NCMe)(μ-PH2)] 4 has been determined. The cluster consists of two Os3 triangles which are linked by a PH2 moiety which is terminally bound to each triangle. The acetonitrile ligand is axially coordinated and the hydride bridges the Os-Os edge to which the phosphide moiety and the acetonitrile are coordinated. The molecular structure of 4 resembles those of the related clusters [Os6(μ-H)(CO)22(μ-PH2)] 1 and [Os6(μ-H)(CO)21(CNBut)(μ-PH2)] 2 although the dihedral angles between the two osmium triangles vary for 1, 2 and 4. The relative orientation of the two linked metal triangles in 4 (as well as 1 and 2) differs from that of the phosphite-substituted analogue [Os6 (μ-H)(CO)20{P(OMe)3}2(μ-PH 2)]3; this difference is attributed to steric factors.

KW - Crystal structure

KW - Osmium

KW - Phosphide bridge

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M3 - Article

AN - SCOPUS:0347801847

SN - 0277-5387

VL - 16

SP - 3463

EP - 3467

JO - Polyhedron

JF - Polyhedron

IS - 19

ER -

The crystal and molecular structure of [Os₆(μ-H)(CO)₂₁ (NCMe)(μ-PH₂)]

Abstract

Keywords

ASJC Scopus subject areas

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