Research Article
Influence of the Steric Demand of Coligands on the Catalytic Activity of Nickel(II) Complexes in the Copolymerization of Ethene and Carbon Monoxide
Table 3
Cone angles [
12] and electronic parameters [
12] of the
P-ligands used here according to Tolman.
| P-ligand | ligand cone angle /° | Electronic parameter /cm−1 |
| PPh3 | 145 | 2068.9 | PnBuPh2 | 141 | 2066.1 | PnBu2Ph | 136 | 2063.2 | PnBu3 | 132 | 2060.3 | P(OEt)3 | 109 | 2076.3 | PCyPh2 | 153 | 2064.8 | PCy3 | 170 | 2056.4 | P(o-Tol)3 | 194 | 2066.6 | P(OPh)3 | 128 | 2085.3 |
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