Synthesis and structures of helical and meso-helical coordination polymers directed by the conformation restriction of flexible/angular pyridine-containing ligands

Wang, Xiu-Jian; Huang, Tian; Tang, Lin-Hua; Cen, Zhong-Min; Ni, Qing-Ling; Gui, Liu-Cheng; Jiang, Xuan-Feng; Liu, Hong‐Ke

doi:10.1039/c0ce00110d

Cited by 16 publications

(2 citation statements)

References 59 publications

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“…Rigid polycarboxylate and pyridylcarboxylate ligands have been widely used in the construction of high dimensional structures with large pores . Relative to rigid ligands, flexible or semirigid polycarboxylates and pyridylcarboxylates have more advantages, because their flexibility and conformational freedom allow them to conform to the coordination environment of metal ions . Meanwhile, interpenetration as an important entanglement phenomenon is frequently observed in porous MOFs .…”

Section: Introductionmentioning

confidence: 99%

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Shen

Wang

et al. 2014

Crystal Growth & Design

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Six zinc metal–organic frameworks, namely, [Zn(bpmb)(HCOO)] n ·[Zn(bpmb)(OH)] n ·4nH2O (1), [Zn(bpmb)(HCOO)] n (2), [Zn2(bpmb)2(fum)] n ·9nH2O (3), [Zn3(bpmb)2(d-cam)2] n (4), [Zn2(bpmb)(1,3,5-btc)] n ·nDMA (5), and [Zn(bpmb)(1,2,4,5-H2btec)] n ·4nH2O (6) (Hbpmb = 3,5-bis(4-pyridylmethoxy)benzoic acid; H2fum = fumaric acid; d-H2cam = d-camphoric acid; 1,3,5-H3btc = 1,3,5-benzenetricarboxylic acid; 1,2,4,5-H4btec = 1,2,4,5-benzenetetracarboxylic acid; DMA = N,N-dimethylacetamide), were synthesized under solvothermal conditions. Their structures were characterized by EA, IR, PXRD, TG, and single-crystal XRD. Complex 1 is constructed of two independent neutral 3D MOFs with large 1D nanosized square channels, which are further entangled by each other to give an unexpected 4-fold [2 + 2] interpenetrating architecture. Complex 2 is a 3D MOF constructed from tetradentate bpmb and bidentate formate ligands, which is an isomer of the [Zn(bpmb)(HCOO)] n piece in 1. Complex 3 displays a 2D double-layered network that possesses 1D nanosized pores. Each 2D double layer is further interlocked with two neighboring ones to form an interesting 3D polycatenation array. Complex 4 possesses a 2D network constructed from a trinuclear [Zn3(COO)6N4] cluster and Zn–cam double-helical chain. Complex 5 is a 3D porous MOF constructed from tridentate bpmb and hexadentate 1,3,5-btc ligands. Complex 6 exhibits a 2-fold interpenetrating 2D wavelike (4,4) network constructed from bidentate bpmb and 1,2,4,5-H2btec ligands. The bpmb ligand adopts four types of coordination modes in 1–6. The secondary carboxylate ligands have obvious effects on their coordination architectures. Tetrahedral-, octahedral-, and trigonal-bipyramidal geometries around Zn(II) ions are observed. A general solvothermal method is proposed for preparing carboxylate complexes in DMF−H2O solution without any basic additive. In the preparation of 3, maleic acid is converted to a fumarate ligand. The thermal stabilities of six complexes and N2 adsorption behaviors of 1 and 3 are investigated. All the Zn(II) complexes emit blue luminescence originating from ligand-centered emission.

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Section: Introductionmentioning

confidence: 99%

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Shen

Wang

et al. 2014

Crystal Growth & Design

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“…In addition, the assembly of supramolecular networks containing pyridine acylamide ligands organised through hydrogen bonds has also attracted much attention, which can be used as a driving force to give interesting nanotubes or zeolitelike frameworks through inter-ring or inter-tube hydrogen bonding. [7][8][9][10][11][12] Herein, we synthesised four novel complexes based on pyridine acylamide ligands. Their syntheses, structures, and photoluminescence properties are discussed.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structures, and Properties of Four Novel HgII Complexes Based on Pyridine Acylamide Ligands

Zhang

Feng

et al. 2015

Aust. J. Chem.

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In this work we synthesised four new pyridine acylamide complexes [HgI 2 (L1)] (1) and (2), [HgI 2 (L2) 2 ] (3), and [HgI 2 (L3)] n (4) (L1 ¼ N,N 0 -bis(3-pyridylmethyl)benzene-1,4-dicarboxamide, L2 ¼ N 4 ,N 40 -bis(pyridin-3-yl)-[1,1 0biphenyl]-4,4 0 -dicarboxamide, L3 ¼ N 1 ,N 3 -bis(pyridin-3-ylmethyl)isophthalamide) by solvo(hydro)thermal reaction. Compounds 1 and 2 are supramolecular isomers prepared via variation of the reaction solvent, in which the Hg II centres are bridged by L1 ligands to form one-dimensional (1D) helical chain or 1D meso-helical chain, respectively. Careful inspection of the structures reveal that formation of the isomers are mainly induced by the distinct configuration of L1 ligand and slight differences in coordination geometry of the Hg II ions. Complex 3 shows a novel Z-shaped zerodimensional structure with a L2-HgI 2 -L2-HgI 2 -L2 arrangement. In complex 4, flexible L3 ligands link HgI 2 units to construct a 1D helical chain with an overall chiral structure, derived from spontaneous resolution. Luminescence properties of these four novel complexes were also explored.

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Coronates, Spherical Containers, Bowl-Shaped Surfaces, Porous 1D-, 2D-, 3D-Metallo-Coordination Polymers, and Metallodendrimers

Saalfrank

Scheurer

2011

Topics in Current Chemistry

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Supramolecular coordination cages and polymers bear exceptional advantages over their organic counterparts. They are available in one-pot reactions and in high yields and display physical properties that are generally inaccessible with organic species. Moreover, their weak, reversible, noncovalent bonding interactions facilitate error checking and self-correction. This review emphasizes the achievements in supramolecular coordination container as well as polymer chemistry initiated by serendipity and their materialization based on rational design. The recognition of similarities in the synthesis of different supramolecular assemblies allows prediction of potential structures in related cases. The combination of detailed symmetry considerations with the basic rules of coordination chemistry has only recently allowed for the design of rational strategies for the construction of a variety of nanosized spherical containers, bowls, 1D-, 2D-, and 3D-coordination polymers with specified size and shape.

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Synthesis and structures of helical and meso-helical coordination polymers directed by the conformation restriction of flexible/angular pyridine-containing ligands

Cited by 16 publications

References 59 publications

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Synthesis, Structures, and Properties of Four Novel HgII Complexes Based on Pyridine Acylamide Ligands

Coronates, Spherical Containers, Bowl-Shaped Surfaces, Porous 1D-, 2D-, 3D-Metallo-Coordination Polymers, and Metallodendrimers

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