The interaction of the cyclophanes 2,6,9,13-tetraaza[14]paracyclophane (L1)
and 2,6,9,13-tetraaza[14]metacyclophane (L2) and of their Zn2+ and Cu2+ co
mplexes with CO32- and its protonated forms is described. The actuation of
the Cu2+-L2 system as an electrocatalyst for the reduction of CO2 to CO in
water is advanced. Copyright (C) 2001 John Wiley & Sons, Ltd.