Synthesis and characterization of Ag2C2·2AgClO4·2H2O: a novel layer-type structure with the acetylide dianion functioning in a µ6-η1,η1:η2,η2:η2,η2 bonding mode inside an octahedral silver cage
Abstract
In the novel double salt Ag2C2·2AgClO4·2H2O, the C22– dianion [bond length 1.217(7) Å] is encapsulated inside an octahedral Ag6 cage, and the resulting cationic [C2@Ag6] units share corners to generate metallic layers between which the perchlorate anions and aqua ligands are accommodated.