Hydrothermal synthesis and crystal structure of a metal–organic coordination polymer with double-helical structure: [Fe(phen)(ipt)]n (ipt=isophthalate, phen=1,10-phenanthroline)

Hou, Yu; Shen, Enhong; Wang, Shutao; Wang, Enbo; Xiao, Dong‐Rong; Li, Yangguang; Xu, Lin; Hu, Changwen

doi:10.1016/j.inoche.2003.08.015

Cited by 18 publications

(1 citation statement)

References 24 publications

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“…Numerous isophthalate and 5-hydroxyisophthalate complexes have been extensively studied. They show a diversity of structures and a variety of framework topologies (Chen & Liu, 2002;Hou et al, 2003;Plater et al, 2001;Xu & Li, 2004;Wen et al, 2004). It should be pointed out that the synthetic conditions, such as H-atom receptors, temperature, solvents etc., play an important role in determining the compositions of these complexes.…”

Section: Commentmentioning

confidence: 99%

Aquachloro[5-hydroxyisophthalato(1−)](1,10-phenanthroline)copper(II) 2.5-hydrate

et al. 2005

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Section: Commentmentioning

confidence: 99%

Aquachloro[5-hydroxyisophthalato(1−)](1,10-phenanthroline)copper(II) 2.5-hydrate

et al. 2005

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Double‐Helical Silver(I) Coordination Polymer Based on an Unsymmetrical Ligand

Lee

Moon

et al. 2015

Bulletin Korean Chem Soc

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Helical structures have received much attention in supramolecular chemistry and materials science because of their fascinating similarities in biological systems to nucleic acids and proteins as well as their potential applications as functional materials in asymmetric catalysis and nonlinear optical materials. [1][2][3][4][5][6] Although many single-, double-, and multiple-stranded helical coordination polymers have been reported, 2-6 the rational and desirable construction of supramolecular helical structure is still constrained by the limited understanding of the structural constraints. In the preparation of helical coordination polymers, much effort should be devoted to the careful design of organic ligands and reasonable selection of metal ions with rational geometries.One of useful strategies in constructing supramolecular architectures with helical structures is the employment of the flexible ditopic ligands and metal ions with linear geometry. 7 In particular, the unsymmetrical dipyridyl ligand L is a good candidate for construction of helices because it is a nonlinear and flexible ligand and has two terminal pyridines with different substituted positions. Through self-assembly of the unsymmetrical ditopic ligand L with silver salts, we and the Gao group have already reported single-stranded helical coordination polymers. 2a,b In this report, we describe the crystal structure of a fascinating, infinite double-helical silver coordination polymer (1) derived from the unsymmetrical and flexible dipyridyl ligand L, and its physical properties including thermogravimetry analysis (TGA) and solid-state photoluminescence. To the best of our knowledge, infinite double-helical structure is less common, 4 whereas numerous discrete double helicates have been reported. 3 The dipyridyl ligand L was synthesized by the reaction of 3-aminopyridine and pyridine-4-carboxaldehyde according to literature methods. 8Colorless crystalline product of formula {[Ag(L)]Á CF 3 SO 3 } n (1) was obtained by the vapor diffusion of diethyl ether into the DMSO solution of the white precipitate afforded by the reaction of silver(I) trifluoromethanesulfonate with L in the molar ratio 1:1 in methanol. Single-crystal X-ray analysis revealed that 1 crystallized in the orthorhombic space group Pbcn and Z = 8. Crystallographic data including experimental details and refinement results, and selected geometric parameters relevant to the coordination geometry for 1 are listed in Tables 1 and S2, Supporting Information, respectively. The crystal structure of 1 is depicted in Figure 1.The asymmetric unit of 1 contains one Ag(I) atom, one L ligand, and one trifluoromethanesulfonate anion. As shown in Figure 1, two pyridine nitrogen atoms from two symmetry-related ligands coordinate strongly to the Ag center (Ag1-N1 = 2.148(6) Å, Ag1-N2 i = 2.154(5) Å), forming an infinite single-stranded helical chain. Thus, the Ag(I) atom is two-coordinate in a slightly distorted linear coordination geometry (N1-Ag1-N2 i = 167.7 (3) The striking feature is that...

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A 3D cadmium(II) coordination polymer constructed from new β-diketone-functionalized pyridinecarboxylate and 4,4′-bipyridine ligands

Chen

et al. 2014

Inorganic Chemistry Communications

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Hydrothermal synthesis and crystal structure of a metal–organic coordination polymer with double-helical structure: [Fe(phen)(ipt)]n (ipt=isophthalate, phen=1,10-phenanthroline)

Cited by 18 publications

References 24 publications

Aquachloro[5-hydroxyisophthalato(1−)](1,10-phenanthroline)copper(II) 2.5-hydrate

Aquachloro[5-hydroxyisophthalato(1−)](1,10-phenanthroline)copper(II) 2.5-hydrate

Double‐Helical Silver(I) Coordination Polymer Based on an Unsymmetrical Ligand

A 3D cadmium(II) coordination polymer constructed from new β-diketone-functionalized pyridinecarboxylate and 4,4′-bipyridine ligands

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