Skip to main content
. Author manuscript; available in PMC: 2008 Apr 16.
Published in final edited form as: Tetrahedron. 2007 Apr 16;63(16):3287–3292. doi: 10.1016/j.tet.2007.02.04

Table 1.

The results of molecular diffusion experiments for 8-QBA and 5-QBA.

Concentration 5-QBA Studies 8-QBA Studies
5-QBA Internal dioxane reference 8-QBA Internal dioxane reference
Diffusion Constant(×10-6 cm2∕s) Molecular Radius (Å) Diffusion Constant(×10-6 cm2∕s) Molecular Radius (Å) Diffusion Constant(×10-6 cm2∕s) Molecular Radius (Å) Diffusion Constant(×10-6 cm2∕s) Molecular Radius (Å)
1 mM 10.6 3.96 18.5 2.27 9.32 4.50 19.4 2.16
25 mM 10.6 ±0.2 3.95±0.08 16.7 ±0.06 2.53±0.01 8.08 ±0.13 5.20±0.08 18.9 ±2.6 2.25±0.29
50 mM 11.3 ±0.2 3.72±0.07 16.8 ±0.15 2.49±0.02 7.87 ±0.04 5.33±0.03 17.0 ±0.2 2.46±0.02
115 mM 9.32 ±0.06 4.50±0.03 15.9 ±0.6 2.65±0.10 7.74 ±0.34 5.43±0.24 16.6 ±0.1 2.53±0.02