Chemistry Letters, Vol.32, No.2, 120-121, 2003
A honeycomb network of a paddlewheel-type dirhodium complex in two oxidation states and pinning of the oxidation states
The reaction of a mixture of [Rh-2(acam)(4)(H2O)(2)] (Hacam = acetamide) and its radical cation salt with sodium chloride in an aqueous solution gave a mixed-valent 2-D honeycomb crystal of [{Rh-2(acam)(4)}(3)(mu(3)-Cl)(2)](n).4nH(2)O. The oxidation states of the dirhodium units are pinned at each of the crystal sites by hydrogen bonding with solvate-water molecules.