Table 1.

Diffusion coefficients [D/10⁻¹⁰ m² s⁻¹] for the three positional isomers of dihydroxybenzene, catechol (C), resorcinol (R), and hydroquinone (H) in mixtures with selected matrices (M). The relative differences in diffusion coefficients of the isomers are given as ΔCR, ΔCH, and ΔHR

Matrices (conc.)a, [Link]	D M	D C	D R	D H	ΔCR (%)	ΔCH (%)	ΔHR (%)
DHB (20)b	—	5.04 ± 0.03	5.16 ± 0.02	5.18 ± 0.04	2.3	2.7	0.4
α‐CD (60)c, e	2.11 ± 0.06	5.00 ± 0.008	4.81 ± 0.09	4.59 ± 0.1	3.8	8.2	4.6
β‐CD (60)c, e	1.85 ± 0.01	4.74 ± 0.1	4.24 ± 0.1	4.39 ± 0.2	10.4	7.4	3.4
CTAB (100)c, e	0.18 ± 0.003	1.87 ± 0.02	1.90 ± 0.02	3.66 ± 0.009	1.6	48.9	48.1
Brij 78 (90)c, e	0.15 ± 0.008	1.44 ± 0.003	1.31 ± 0.005	1.95 ± 0.006	9.0	26.2	32.8
Brij 98 (80)c, e	0.24 ± 0.001	2.17 ± 0.008	1.87 ± 0.01	2.79 ± 0.01	13.8	22.2	32.9
Brij 700 (35)c, e	0.18 ± 0.02	3.10 ± 0.2	3.29 ± 0.2	3.52 ± 0.3	5.8	11.9	6.5
SDS (150)c, e	0.54 ± 0.009	3.76 ± 0.09	4.16 ± 0.04	4.75 ± 0.03	9.6	20.8	12.4
AOT (200)d, e	0.88 ± 0.03	2.54 ± 0.02	2.01 ± 0.02	3.21 ± 0.02	20.9	20.9	37.4
PVP (83.3)c, f	0.73 ± 0.002	3.61 ± 0.04	3.13 ± 0.07	3.28 ± 0.08	13.3	9.1	4.6
PEG (166.7)c, f	0.11 ± 0.003	2.77 ± 0.02	2.63 ± 0.01	2.96 ± 0.02	5.1	6.4	11.1

^aMixtures with catechol, resorcinol, and hydroquinone at 20 mM each in D₂O and at 0.33 mM in CDCl₃ (AOT).

^bMixture of C, R, and H (20 mM each) without surfactant.

^*Solvents.

^cD₂O.

^dCDCl₃.

Concentration:

^emM.

^fmg/ml.