A Designed Three-Dimensional Porous Hydrogen-Bonding Network Based on a Metal–Organic Polyhedron

By
employment of sulfonate-decorated metal–organic cuboctahedra
(MOCs) as tectons, we report an interesting example of molecular tectonics
strategy for the rational construction of three-dimensional (3D) porous
network 1 through complementary and metrically matched
N–H+···–O–S
hydrogen bonds between guanidinium and sulfonate (GS) moieties. Built
from the MOCs as 24-connected nodes and the GS H-bonding motifs as
3-connected nodes, 1 was expected to have a (3,24)-connected
network topology, which has been verified by the single crystal X-ray
analysis. In addition, the porous H-bonding network 1 displays good stability under ambient conditions and modest absorption
of cationic dye molecules.