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Plot of multicomponent fit of the rate constants (sec−1) at 298 K in acetonitrile with the experimental data. The reactions of phosphines with 1 (circles, left panel) and 3 (diamonds, right panel). The equations 9 and 10 are the fits for compounds 1 and 3, respectively. logk1 = − 2.5 (± 1.3) − 0.063(± 0.16)χd − 0.12 (±0.06)(Θ-Θst)*λ + 0.17 (±0.53) Ear(R2 = 93)… eq 9; logk1 = −34 (± 56) + 0.57 (± 0.57)χd + 0.21 (± 0.34) (Θ-Θst)λ − 0.53 (±5.8) Ear (R2 = 78) … eq10.
