Summary
The ligand control in the complex chemical system bis(-μ-methyl-1,3-dimethyl-η3-allylnickel)/P-ligand/carbon monoxide is discussed. By varying the P-ligand/nickel ratio ([L]0/[Ni]0) over a three orders of magnitude range, the selectivity of the decomposition and of the CO-insertion (ligand concentration control) was analyzed and compared with the range of step-wise ligand associations, identified by31P-n.m.r. spectroscopy. Investigations of the range of existence of the complexes, the degree of CO-absorption and the selectivity of the products formed by means of ligand concentration control maps lead to a subsystem scheme for this system, describing the relations of the various species involved. A method for quantitatively separating the ligand concentration control (derivable from the range of existence of the species) from the property specific ligand control (chemical behaviour of the species) is given.
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References
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Schenkluhn, H., Bandmann, H., Berger, R. et al. Organometallic complex compounds, part 7(1). Ligand concentration control in the organometallic system P-ligand/carbon monoxide/ bis(-μ-methyl-l,3-dimethyl-η3-allylnickel). Transition Met Chem 6, 287–295 (1981). https://doi.org/10.1007/BF00620747
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DOI: https://doi.org/10.1007/BF00620747