Synthesis and crystal structures of ZnCl2 and CdCl2 containing helical coordination polymers derived from a flexible bis(pyridylurea) ligand

Huang, Chao; Yi, Xian-Mei; Chen, Dongmei; Zhu, Bi‐Xue

doi:10.1016/j.ica.2018.01.028

Cited by 10 publications

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“…The bond lengths and bond angles around the Zn(II) ions are consistent with those observed for other ZnCl 2 complexes. 51,52 The complex assembles as a 1D homochiral polymer (-P-Zn-P-and -M-Zn-M-) via a self-recognition process (Figure 8b). Intermolecular π•••π stacking interactions with a centroid-to-centroid distance of 3.762 Å are formed in the extended structure, resulting in 1D channels along the c-axis (Figure 8c).…”

Section: Resultsmentioning

confidence: 99%

Coordination-Driven Self-Assembly of Complexes Constructed from Two Helical Ligands: Synthesis, Structures, and Selective Gas Adsorption Properties

Huang

Tian

et al. 2022

Inorg. Chem.

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Two helical ligands (L 1 and L 2 ) were designed and synthesized by a Schiff base condensation reaction. Eight complexes, {[Zn(L, were synthesized and characterized based on these two ligands. The crystal structures show that both Schiff base compounds exist as racemic ligands with equal amounts of P-and M-helicity, and the assembly of these racemic ligands with metal ions can lead to homochiral or heterochiral complexes via a chiral self-recognition or self-discrimination process. Complexes 2, 3, and 5 exist as heterochiral metallomacrocycles with a figure-eight conformation. Complexes 1, 6, and 8 exist as one-dimensional (1D) homochiral helical chain coordination polymers, while complexes 4 and 7 exist as 1D heterochiral helical chain coordination polymers. Furthermore, gas and vapor adsorption measurements show that all of the synthesized complexes exhibit good selective adsorption capacities toward methanol and ethanol vapor over N 2 , H 2 , and O 2 .

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Section: Resultsmentioning

confidence: 99%