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) 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) |
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Pages (from-to) | 389-402 |
Number of pages | 14 |
Journal | Journal of Organometallic Chemistry |
Volume | 57 |
Issue number | 2 |
DOIs | |
State | Published - Sep 1 1973 |
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry