Abstract
The crystal structure of compound (1), [CuCl(phen)(H2NCH2COO)]∙4H2O, reveals an unusual hydrogen-bond water cluster aggregate T6(2)6(2). Four water molecules in (1) form an isolated water cluster, [(H2O)14]n, resembling a “phenanthro-[1,2]phenanthrene polymer structure shape” along the ac plane. The two face-face parallel [(H2O)14]n planes are bridged by Cl atoms in [CuCl(phen) (H2NCH2COO)] with a strong O-H∙∙∙Cl hydrogen bond to form a water cluster conduit.
Highlights
Water is the most abundant compound on Earth, and is very difficult to eliminate from other solvents
The presence of water molecules in any crystal structure can play an important role in stabilizing some supramolecular species, as the number of hydrogen bond acceptors and donors can differ from those of anhydrous compounds [1,2]
Structural studies on discrete water clusters within the lattice of a crystal host have significantly advanced our understanding of the behavior of bulk water [3,4,5,6]
Summary
Water is the most abundant compound on Earth, and is very difficult to eliminate from other solvents (even when there is no water in the synthesis steps). It is not present in the solvents used for crystallization where hydrates can be obtained. The presence of water molecules in any crystal structure can play an important role in stabilizing some supramolecular species, as the number of hydrogen bond acceptors and donors can differ from those of anhydrous compounds [1,2]. Structural studies on discrete water clusters within the lattice of a crystal host have significantly advanced our understanding of the behavior of bulk water [3,4,5,6]. The aggregation of lattice water molecules in crystals, into hydrogen-bonded clusters as well as infinite networks, has generated considerable interest [25,26,27,28,29,30,31,32,33,34]
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