The crystal and molecular structure of tricarbonylbis (triphenylphosphine)osmium (0), Os(CO)3 (P(C6H5)3)2

Judith K. Stalick; James A. Ibers

doi:10.1021/ic50073a003

The crystal and molecular structure of tricarbonylbis (triphenylphosphine)osmium (0), Os(CO)₃ (P(C₆H₅)₃)₂

Judith K. Stalick, James A. Ibers

Chemistry

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36 Scopus citations

Abstract

The crystal and molecular structure of tricarbonylbis (tripheny lphosphine )osmium (0), Os(CO)₃(P(C₆H₅)₃)₂, has been determined from three-dimensional X-ray data collected by multiple-film methods. The structure has been refined by leastsquares techniques down to a final R factor on F of 9.1%. The material crystallizes in space group D_3d⁴-P3cl of the trigonal system, with six molecules in a cell of dimensions a = 15.80 (2) Å and c = 23.20 (3) Å. The observed and calculated densities are 1.60 ± 0.02 and 1.59 g/cm³, respectively. The crystal structure is made up of well-separated monomeric molecular units. Threefold crystallographic symmetry is imposed upon four of the molecules in the unit cell; the remaining two molecules are crystallographically required to possess D₃-32 point symmetry. Thus the inner coordination about the two independent Os atoms is trigonal bipyramidal with the phosphine ligands at the pices and the three carbonyls in the equatorial plane. The average Os-P and Os-C distances are 2.36 (3) and 1.92 (5) Å. The Os-C-O linkage islinear.

Original language	English (US)
Pages (from-to)	419-423
Number of pages	5
Journal	Inorganic chemistry
Volume	8
Issue number	3
DOIs	https://doi.org/10.1021/ic50073a003
State	Published - Mar 1 1969

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Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "The crystal and molecular structure of tricarbonylbis (triphenylphosphine)osmium (0), Os(CO)3 (P(C6H5)3)2",

abstract = "The crystal and molecular structure of tricarbonylbis (tripheny lphosphine )osmium (0), Os(CO)3(P(C6H5)3)2, has been determined from three-dimensional X-ray data collected by multiple-film methods. The structure has been refined by leastsquares techniques down to a final R factor on F of 9.1%. The material crystallizes in space group D3d4-P3cl of the trigonal system, with six molecules in a cell of dimensions a = 15.80 (2) {\AA} and c = 23.20 (3) {\AA}. The observed and calculated densities are 1.60 ± 0.02 and 1.59 g/cm3, respectively. The crystal structure is made up of well-separated monomeric molecular units. Threefold crystallographic symmetry is imposed upon four of the molecules in the unit cell; the remaining two molecules are crystallographically required to possess D3-32 point symmetry. Thus the inner coordination about the two independent Os atoms is trigonal bipyramidal with the phosphine ligands at the pices and the three carbonyls in the equatorial plane. The average Os-P and Os-C distances are 2.36 (3) and 1.92 (5) {\AA}. The Os-C-O linkage islinear.",

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Y1 - 1969/3/1

N2 - The crystal and molecular structure of tricarbonylbis (tripheny lphosphine )osmium (0), Os(CO)3(P(C6H5)3)2, has been determined from three-dimensional X-ray data collected by multiple-film methods. The structure has been refined by leastsquares techniques down to a final R factor on F of 9.1%. The material crystallizes in space group D3d4-P3cl of the trigonal system, with six molecules in a cell of dimensions a = 15.80 (2) Å and c = 23.20 (3) Å. The observed and calculated densities are 1.60 ± 0.02 and 1.59 g/cm3, respectively. The crystal structure is made up of well-separated monomeric molecular units. Threefold crystallographic symmetry is imposed upon four of the molecules in the unit cell; the remaining two molecules are crystallographically required to possess D3-32 point symmetry. Thus the inner coordination about the two independent Os atoms is trigonal bipyramidal with the phosphine ligands at the pices and the three carbonyls in the equatorial plane. The average Os-P and Os-C distances are 2.36 (3) and 1.92 (5) Å. The Os-C-O linkage islinear.

AB - The crystal and molecular structure of tricarbonylbis (tripheny lphosphine )osmium (0), Os(CO)3(P(C6H5)3)2, has been determined from three-dimensional X-ray data collected by multiple-film methods. The structure has been refined by leastsquares techniques down to a final R factor on F of 9.1%. The material crystallizes in space group D3d4-P3cl of the trigonal system, with six molecules in a cell of dimensions a = 15.80 (2) Å and c = 23.20 (3) Å. The observed and calculated densities are 1.60 ± 0.02 and 1.59 g/cm3, respectively. The crystal structure is made up of well-separated monomeric molecular units. Threefold crystallographic symmetry is imposed upon four of the molecules in the unit cell; the remaining two molecules are crystallographically required to possess D3-32 point symmetry. Thus the inner coordination about the two independent Os atoms is trigonal bipyramidal with the phosphine ligands at the pices and the three carbonyls in the equatorial plane. The average Os-P and Os-C distances are 2.36 (3) and 1.92 (5) Å. The Os-C-O linkage islinear.

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The crystal and molecular structure of tricarbonylbis (triphenylphosphine)osmium (0), Os(CO)₃ (P(C₆H₅)₃)₂

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