Hydrothermal synthesis and characterization of metal–organic networks with helical units in a mixed ligand system

catena-Poly[[zinc-bis(μ-2-sulfido-1H-benzimidazol-3-ium-5-carboxylato)-κ2O:S;κ2S:O] trihydrate]

“…In recent years, the synthesis of novel coordination polymers with helical structures has attracted much attention owing to the fundamental role of helicity in biology and their potential utilization in advanced materials (Cui et al, 2003;Ngo & Lin, 2002;Yan et al, 2005). In general, the V-shaped organic ligands have already been proven to be efficient for the generation of helical complexes (Chen & Liu, 2002;Hu et al, 2008;Xiao et al, 2007). 2-Mercapto-1H-…”

“…For coordination polymers with helical chain structures, see: Chen & Liu (2002); Cui et al (2003); Hu et al (2008); Ngo & Lin (2002); Xiao et al (2007); Yan et al (2005).…”

Hydrothermal Synthesis, Crystal Structure and Spectroscopic Characterization of a Novel 2D → 2D Parallel Interpenetrated Coordination Polymer [Zn2(pdoa)2(bpp)2(H2O)]·4H2O

“…This arrangement of Zn(II) cations and ligands generates a series of interesting tubular channels within the 2D layer that are running along the (110) direction. To the best of our knowledge, few examples in which a mono-helical layer is constructed by mixed ligands have been found to exist in a stable crystalline solid [28][29][30].…”

A novel CdII coordination polymer with helical units and mix-connected network topology constructed form 2-propyl-4,5-imidazoledicarboxylate and N-donor co-ligands

“…At this stage, owing to the possibility of structural variations and the controllability of the assembly process, the combination of N-donor ligands and anionic O-donor mixed ligands with metal cations in designing various helical architectures should be considered as an attractive design strategy. However, helical units of helical MOFs constructed from mixed ligands are rare because of the difficulty in achieving the rational incorporation of different organic ligands [10,11]. Thus, control of the self-assembly process of mixed ligands and metal cations is still a great challenge.…”

“…ever, helical units of helical MOFs constructed from mixed ligands are rare because of the difficulty in achieving the rational incorporation of different organic ligands [10,11]. Thus, control of the self-assembly process of mixed ligands and metal cations is still a great challenge.…”