Table 2. Comparison of cubane redox potentials in aprotic solvent and water.

Cubane	E 1 (V), aprotic solvent	E 1 (V), water a	ΔE 1	Reference
4OAc-4COOEtpy	0.48	1.00	0.52	20 and 23
NBA,3OAc-4py	0.34	0.89	0.55
4OAc-4py	0.28	0.85	0.57
4OAc-4Mepy	0.27	0.84	0.57	20
4OAc-4DMAP	0.11	0.68	0.57

^aPotential versus Fc/Fc⁺.²⁴