Table 3 Phosphine ligand factors screened. Phosphine ligands’ respective electronic effect [vCO (cm–1)] and tolman’s cone angles (θ)31.

From: Application of statistical design of experiment to identify key factors in cross coupling reactions

Labels

Ligands

v CO (cm–1)

θ

T1

Tris(pentaflurophenyl)phosphine [P(p - FC6H4)3]

24.3

145

T2

Triphenylphosphite [P(O-C6H5)3]

50.9

128

T3

Tricyclohexylphosphine (PCy3)

12.8

170

T4

Dimethylphenylphosphine (PPhMe2)

13.6

122