An Aqua-Soluble Copper(II)−Sodium Two-Dimensional Coordination Polymer with Intercalated Infinite Chains of Decameric Water Clusters

Synthesis, structure, and properties of two novel copper(II) complexes, [Cu(phen)(L)2]·6H2O and [Cu(phen)3]·(ClO4)2

“…Although they are bond to the host via hydrogen bonds, the O7, O8, O9 and O10 are in three-coordinate configuration, while O6 is in tetrahedral arrangement. Within the water cage, the OÁ Á ÁO distances are in range of 2.744(3)-2.872(2) Å with a average of 2.827 Å, which is comparable to that observed in the ice P phase 2.77-2.84 Å [24], although the value is longer than that of average OÁ Á ÁO contact of 2.72-2.80 Å found in other (H 2 O) 10 clusters hosted by metal-organic frameworks [25][26][27]. Carboxyl groups provide potential hydrogen-bonding intermolecular interactions, besides its coordination ability towards metal ions.…”

A New Dicationic Ring [(Water)6–(Ammonium)2] Acts as a Building Block for a Supramolecular 3D Assembly of Decavanadate Clusters and 4-(N,N-dimethylamino)pyridinium Ions

“…In this context, recent theoretical and structural studies have elucidated the formation of water clusters in different crystalline structures, being some of them cyclic motifs such as H 14 O 6 2? and H 18 O 8 2? according to X-ray structures [28,29] and chemical characterization studies [30][31][32]. Thus, a new [(water) 6 -(ammonium) 2 ] dicationic ring embedded in the cavities formed by [V 10 O 28 ] 6-clusters was found in 1 and it represents the first example of this kind of such motif reported in a crystalline structure.…”

Two 3-D supramolecular architecture based on the linkages of Co(II) complexes and lattice water molecules

“…Recently, significant progress has been made with respect to characterization of 1-D water chains and tapes [12][13][14][15][16][17][18]. These studies have significantly advanced our understanding of the behavior of bulk water [5,[12][13][14][15][16][17][18].…”

“…Recently, significant progress has been made with respect to characterization of 1-D water chains and tapes [12][13][14][15][16][17][18]. These studies have significantly advanced our understanding of the behavior of bulk water [5,[12][13][14][15][16][17][18]. But very little is known about how these clusters link themselves within the lattice of a crystal host to form larger networks of water molecules, so that there are very few examples of 2-D [4,[19][20][21][22][23][24] or 3-D [25][26][27] water polymers.…”