Can One-Dimensional Water Be Controlled by Transformation of Substitution Groups Based on Organic Hosts?

Abstract

Infinite 1D water chains/tapes have been well-tuned by transformation of substituted groups of organic hosts, (E)-3-(4-((1H-imidazol-1-yl)methyl)phenyl)acrylic acid and its derivatives, which demonstrates that water chains have been significantly controlled, easily understood and realized in view of crystal engineering.

A novel three-dimensional framework constructed by 2-[(1H-imidazol-1-yl)methyl]-1H-benzimidazole and infinite chains of hydrogen-bonded water molecules

“…Thus, in this water chain, atom O1 is in a three-coordinate configuration by coordinating to two water molecules and one benzimidazole molecule, while atom O2 is in a four-coordinate configuration resulting from two interactions with water molecules and two with benzimidazole molecules. This is different from the reported one-dimensional water chains (Wang et al, 2007) in which all the O atoms are in a three-coordinate configuration with two bonds with water molecules and one bond with a ligand.…”

“…2, these hydrogen bonds are O2-H2AÁ Á ÁO1 and O1-H1AÁ Á ÁO2 i [symmetry code: (i) x, y, z À 1]. The water O atoms in the chain are coplanar, which corresponds with one literature report (Wang et al, 2007) but contrasts with another (Neogi et al, 2005), in which the O atoms of the water molecules in the chain are not coplanar. As shown in Fig.…”

“…Some hydrogen-bonded water molecules, such as water clusters (Ghosh et al, 2005;Dai et al, 2008), one-dimensional water chains (Sreenivasulu et al, 2004) and two-dimensional water layers (Janiak et al, 2002), have been found. However, infinite chains of hydrogen-bonded water molecules in biological molecules, especially in supramolecular compounds, are still rare (Wang et al, 2007;Mukherjee et al, 2004;Neogi et al, 2005). We report here the synthesis and characterization of a novel three-dimensional hydrogen-bonded framework of 2-[(1H-imidazol-1-yl)methyl]-1H-benzimidazole dihydrate (LÁ2H 2 O), (I), which contains infinite chains of hydrogenbonded water molecules.…”

Discrete cubic water cluster: An unusual building block of 3D supramolecular network

“…The features of water aggregates still have been inadequately understood for researchers due to its delicate nature. Most water clusters are obtained occasionally, and the construction of water clusters is still a challenging scientific venture, since it is complicated to envisage the shapes and structures of the water clusters in various surroundings [17].Intermolecular interactions between water molecules within the cluster and surrounding ions play a pivotal role in building the stabilized packing motifs. Recently, Vittal and co-workers show that the water cluster can be sustained by weak interactions with BF 4 − and ClO 4 − [18].…”

“…The features of water aggregates still have been inadequately understood for researchers due to its delicate nature. Most water clusters are obtained occasionally, and the construction of water clusters is still a challenging scientific venture, since it is complicated to envisage the shapes and structures of the water clusters in various surroundings [17].…”