. 2021 Jun 3;143(23):8669–8678. doi: 10.1021/jacs.1c02275

Table 2. Association Constants and Limiting Chemical Shifts Measured by ³¹P NMR Dilution and Titration Experiments in CDCl₃ at 298 K^a.

complex	log K (M^–1)	δ_free(ppm)	δ_bound(ppm)
AA·DD	2.6	58.6	61.6
AD·AD	2.0	58.6	61.8
AAD·AAD	2.0	58.5	61.1
ADD·ADD	2.5	58.5	62.2

Errors based on repeat experiments are 0.1 in log K.

Table 2. Association Constants and Limiting Chemical Shifts Measured by 31P NMR Dilution and Titration Experiments in CDCl3 at 298 Ka.