The preparation and structure of bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[(C6H5NNC6H5]

Steven D. Ittel; James A. Ibers

doi:10.1016/S0022-328X(00)86620-6

The preparation and structure of bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C₆H₄CH₃)₃]₂[(C₆H₅NNC₆H₅]

Steven D. Ittel^*, James A. Ibers

^*Corresponding author for this work

Chemistry

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

52 Scopus citations

Abstract

The compound, bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C₆H₄CH₃)₃]₂[C₆H₅NNC₆H₅], has been prepared by the reaction of tri-p-tolylphosphine and azobenzene with bis(1,5-cyclooctadiene)nickel(0) in hexane. The structure of the complex has been determined at room temperature from three-dimensional X-ray data collected by counter methods. The structure has been refined by least-squares techniques to a final R factor on F of 6.6% based on 3516 observations above background. The material crystallizes in the triclinic space group C¹_i-P1, with two molecules in a cell of dimensions a = 12.448(11), b = 17.671(20), c = 12.226(13) Å, α 95.79(5). β 118.34(3), 97.14(4)°. The Ni atom has trigonal coordinationif the azoben- zene is regarded as a monodentate ligand. The inner coordination sphere is essentially planar, with the two nitrogen atoms equidistant from the metal atom. The structure is compared with that of Ni[(CH₃)₃CNC]₂[C₆H₅NNC₆H₅], a similar complex studied earlier in this laboratory. Observed differences in the coordinated azobenzenes have been related to observed spectral differences.

Original language	English (US)
Pages (from-to)	389-402
Number of pages	14
Journal	Journal of Organometallic Chemistry
Volume	57
Issue number	2
DOIs	https://doi.org/10.1016/S0022-328X(00)86620-6
State	Published - Sep 1 1973

Funding

We wish to thank the U.S. National Institutes of Health’for their support of this work. We also thank Dr. Ron S. Dickson and Joseph W. Lauher for helpful consultations.

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/S0022-328X(00)86620-6

Cite this

@article{67f40f93ca9c4520ad6f7b9b6595d721,

title = "The preparation and structure of bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[(C6H5NNC6H5]",

abstract = "The compound, bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[C6H5NNC6H5], has been prepared by the reaction of tri-p-tolylphosphine and azobenzene with bis(1,5-cyclooctadiene)nickel(0) in hexane. The structure of the complex has been determined at room temperature from three-dimensional X-ray data collected by counter methods. The structure has been refined by least-squares techniques to a final R factor on F of 6.6% based on 3516 observations above background. The material crystallizes in the triclinic space group C1i-P1, with two molecules in a cell of dimensions a = 12.448(11), b = 17.671(20), c = 12.226(13) {\AA}, α 95.79(5). β 118.34(3), 97.14(4)°. The Ni atom has trigonal coordinationif the azoben- zene is regarded as a monodentate ligand. The inner coordination sphere is essentially planar, with the two nitrogen atoms equidistant from the metal atom. The structure is compared with that of Ni[(CH3)3CNC]2[C6H5NNC6H5], a similar complex studied earlier in this laboratory. Observed differences in the coordinated azobenzenes have been related to observed spectral differences.",

author = "Ittel, {Steven D.} and Ibers, {James A.}",

note = "Funding Information: We wish to thank the U.S. National Institutes of Health{\textquoteright}for their support of this work. We also thank Dr. Ron S. Dickson and Joseph W. Lauher for helpful consultations.",

year = "1973",

month = sep,

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doi = "10.1016/S0022-328X(00)86620-6",

language = "English (US)",

volume = "57",

pages = "389--402",

journal = "Journal of Organometallic Chemistry",

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T1 - The preparation and structure of bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[(C6H5NNC6H5]

AU - Ittel, Steven D.

AU - Ibers, James A.

N1 - Funding Information: We wish to thank the U.S. National Institutes of Health’for their support of this work. We also thank Dr. Ron S. Dickson and Joseph W. Lauher for helpful consultations.

PY - 1973/9/1

Y1 - 1973/9/1

N2 - The compound, bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[C6H5NNC6H5], has been prepared by the reaction of tri-p-tolylphosphine and azobenzene with bis(1,5-cyclooctadiene)nickel(0) in hexane. The structure of the complex has been determined at room temperature from three-dimensional X-ray data collected by counter methods. The structure has been refined by least-squares techniques to a final R factor on F of 6.6% based on 3516 observations above background. The material crystallizes in the triclinic space group C1i-P1, with two molecules in a cell of dimensions a = 12.448(11), b = 17.671(20), c = 12.226(13) Å, α 95.79(5). β 118.34(3), 97.14(4)°. The Ni atom has trigonal coordinationif the azoben- zene is regarded as a monodentate ligand. The inner coordination sphere is essentially planar, with the two nitrogen atoms equidistant from the metal atom. The structure is compared with that of Ni[(CH3)3CNC]2[C6H5NNC6H5], a similar complex studied earlier in this laboratory. Observed differences in the coordinated azobenzenes have been related to observed spectral differences.

AB - The compound, bis(tri-p-tolylphosphine)(azobenzene)nickel(0), Ni[P(C6H4CH3)3]2[C6H5NNC6H5], has been prepared by the reaction of tri-p-tolylphosphine and azobenzene with bis(1,5-cyclooctadiene)nickel(0) in hexane. The structure of the complex has been determined at room temperature from three-dimensional X-ray data collected by counter methods. The structure has been refined by least-squares techniques to a final R factor on F of 6.6% based on 3516 observations above background. The material crystallizes in the triclinic space group C1i-P1, with two molecules in a cell of dimensions a = 12.448(11), b = 17.671(20), c = 12.226(13) Å, α 95.79(5). β 118.34(3), 97.14(4)°. The Ni atom has trigonal coordinationif the azoben- zene is regarded as a monodentate ligand. The inner coordination sphere is essentially planar, with the two nitrogen atoms equidistant from the metal atom. The structure is compared with that of Ni[(CH3)3CNC]2[C6H5NNC6H5], a similar complex studied earlier in this laboratory. Observed differences in the coordinated azobenzenes have been related to observed spectral differences.

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