Hierarchical self-assembly of helical coordination polymers and formation of a lamellar structure via the cooperativity of two-step Ag(i) coordination and π–π interactions

Nanoscale ◽  
2020 ◽  
Vol 12 (20) ◽  
pp. 10972-10976
Author(s):  
Shi Wang ◽  
Dongya Bai ◽  
Yanbo Wang ◽  
Jiya Fu ◽  
Junyan Zhu ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Lamellar Structure ◽  
Π Interactions

Hierarchical self-assembly from a V-shaped ligand to an initial interlocked dimer, further to a helical coordination polymer and finally to a lamellar structure was achieved via the cooperativity of two-step Ag(i) coordination and π–π interactions.

A new twofold interpenetrated two-dimensional cadmium(II) coordination polymer constructed from 2,2′-(benzene-1,4-dicarboxamido)dipropionate

2018 ◽  
Vol 74 (11) ◽  
pp. 1434-1439
Author(s):  
Hong-Tao Zhang ◽  
Xiao-Long Wang
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Fluorescence Emission ◽  
Functional Materials ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylate Groups ◽  
Potential Applications

In recent years, much initial interest and enthusiasm has focused on the self-assembly of coordination polymers due to the aesthetics of their crystalline architectures and their potential applications as new functional materials. As part of an exploration of chiral coordination polymers, a new twofold interpenetrated two-dimensional (2D) coordination polymer, namely, poly[[tetraaquabis[μ3-(2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionato-κ5 O,O′:O′′,O′′′:O′′]dicadmium(II)] trihydrate], {[Cd2(C14H14N2O6)2(H2O)4]·3H2O} n , has been synthesized by the reaction of Cd(CH3COO)2·2H2O with the designed ligand (2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionic acid (H2 L). The compound has been structurally characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction and single-crystal X-ray diffraction analysis. In the crystal structure, each CdII cation binds to three carboxylate groups from two crystallographically independent L 2− dianions. Four carboxylate groups link two crystallographically independent cadmium cations into a 4,4-connected secondary building unit (SBU). The resulting SBUs are extended into a two-dimensional folding sheet via the terephthalamide moiety of the ligand as a spacer, which can be simplified as a (4,4)-connected 4,4L15 net with the point symbol (3.53.62)(32.52.62). In the lattice, two independent folding sheets interpenetrate each other to yield a double-sheet layer. The resulting 2D layers pack in parallel arrays through intermolecular hydrogen bonds and interlayer π–π interactions. The thermal stability and photoluminescence properties of the title compound have been investigated and it exhibits an enhanced fluorescence emission and a longer lifetime compared with free H2 L.

scholarly journals From a Well-Defined Organozinc Precursor to Diverse Luminescent Coordination Polymers Based on Zn(II)-Quinolinate Building Units Interconnected by Mixed Ligand Systems

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7402
Author(s):  
Katarzyna Sołtys-Brzostek ◽  
Kamil Sokołowski ◽  
Iwona Justyniak ◽  
Michał K. Leszczyński ◽  
Natalia Olejnik-Fehér ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Rational Design ◽  
Building Blocks ◽  
Mixed Ligand ◽  
Direct Reaction ◽  
Synthetic Strategy ◽  
Secondary Building Units ◽  
Additional Base

Introduction of photoactive building blocks into mixed-ligand coordination polymers appears to be a promising way to produce new advanced luminescent materials. However, rational design and self-assembly of the multi-component supramolecular systems is challenging from both a conceptual and synthetic perspective. Here, we report exploratory studies that investigate the potential of [Zn(q)2]2[tBuZn(OH)]2 complex (q = deprotonated 8-hydroxyquinoline) as an organozinc precursor as well as a mixed-ligand synthetic strategy for the preparation of new luminescent coordination polymers (CPs). As a result we present three new 2D mixed-ligand Zn(II)-quinolinate coordination polymers which are based on various zinc quinolinate secondary building units interconnected by two different organic linker types, i.e., deprotonated 4,4′-oxybisbenzoic acid (H2obc) as a flexible dicarboxylate linker and/or selected bipyridines (bipy). Remarkably, using the title organozinc precursors in a combination with H2obc and 4,4′-bipyridine, a novel molecular zinc quinolinate building unit, [Zn4(q)6(bipy)2(obc)2], was obtained which self-assembled into a chain-type hydrogen-bonded network. The application of the organometallic precursor allowed for its direct reaction with the selected ligands at ambient temperature, avoiding the use of both solvothermal conditions and additional base reagents. In turn, the reaction involving Zn(NO3)2, as a classical inorganic precursor, in a combination with H2obc and bipy led to a novel 1D coordination polymer [Zn2(q)2(NO3)2(bipy)]. While the presence of H2obc was essential for the formation of this coordination polymer, this ditopic linker was not incorporated into the isolated product, which indicates its templating behavior. The reported compounds were characterized by single-crystal and powder X-ray diffraction, elemental analysis as well as UV-Vis and photoluminescence spectroscopy.

Different photochromic properties induced by lone pair–π interactions with varying strengths in two stereocontrolled self-assembly isomeric coordination polymers

CrystEngComm ◽  
2018 ◽  
Vol 20 (42) ◽  
pp. 6821-6827 ◽  
Author(s):  
Chen Fu ◽  
Guo-Shuai Zhang ◽  
Hai-Yu Wang ◽  
Li Li ◽  
Jia-Wei Fu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Lone Pair ◽  
Photochromic Properties ◽  
Π Interactions

The different photochromic properties of two naphthalenediimide-based isometric compounds are derived from two lone pair–π interactions with varying strengths.

scholarly journals Molecular and crystalline architectures based on HgI2: from metallamacrocycles to coordination polymers

CrystEngComm ◽  
2017 ◽  
Vol 19 (24) ◽  
pp. 3322-3330 ◽  
Author(s):  
Ghodrat Mahmoudi ◽  
Ennio Zangrando ◽  
Antonio Bauzá ◽  
Waldemar Maniukiewicz ◽  
Rosa Carballo ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
X Ray

We report the synthesis and X-ray characterization of three metallamacrocycles and one coordination polymer obtained by using coordination driven self-assembly of the HgI2 salt with four different ligands.

A versatile strategy to construct multifunctional metal oxide@cyanometallate-based coordination polymer heterostructures

2015 ◽  
Vol 51 (28) ◽  
pp. 6198-6201 ◽  
Author(s):  
Fan-Xing Bu ◽  
Li Xu ◽  
Wei Zhang ◽  
Chuan-Yin Jin ◽  
Rui-Juan Qi ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Core Shell ◽  
Assembly Strategy ◽  
Functional Metal Oxides

We have developed a novel and versatile spatially confined self-assembly strategy to integrate cyanometallate-based coordination polymers with functional metal oxides into well-defined core@shell heterostructures with various structures, compositions, sizes and morphologies.

scholarly journals Pyrene Carboxylate Ligand Based Coordination Polymers for Microwave-Assisted Solvent-Free Cyanosilylation of Aldehydes

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1101
Author(s):  
Anirban Karmakar ◽  
Anup Paul ◽  
Elia Pantanetti Sabatini ◽  
M. Fátima C. Guedes da Silva ◽  
Armando J. L. Pombeiro
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Metal Ion ◽  
Solvent Free ◽  
Lewis Acidity ◽  
Carboxylate Ligand ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microwave Assisted

The new coordination polymers (CPs) [Zn(μ-1κO1:1κO2-L)(H2O)2]n·n(H2O) (1) and [Cd(μ4-1κO1O2:2κN:3,4κO3-L)(H2O)]n·n(H2O) (2) are reported, being prepared by the solvothermal reactions of 5-{(pyren-4-ylmethyl)amino}isophthalic acid (H2L) with Zn(NO3)2.6H2O or Cd(NO3)2.4H2O, respectively. They were synthesized in a basic ethanolic medium or a DMF:H2O mixture, respectively. These compounds were characterized by single-crystal X-ray diffraction, FTIR spectroscopy, thermogravimetric and elemental analysis. The single-crystal X-ray diffraction analysis revealed that compound 1 is a one dimensional linear coordination polymer, whereas 2 presents a two dimensional network. In both compounds, the coordinating ligand (L2−) is twisted due to the rotation of the pyrene ring around the CH2-NH bond. In compound 1, the Zn(II) metal ion has a tetrahedral geometry, whereas, in 2, the dinuclear [Cd2(COO)2] moiety acts as a secondary building unit and the Cd(II) ion possesses a distorted octahedral geometry. Recently, several CPs have been explored for the cyanosilylation reaction under conventional conditions, but microwave-assisted cyanosilylation of aldehydes catalyzed by CPs has not yet been well studied. Thus, we have tested the solvent-free microwave-assisted cyanosilylation reactions of different aldehydes, with trimethylsilyl cyanide, using our synthesized compounds, which behave as highly active heterogeneous catalysts. The coordination polymer 1 is more effective than 2, conceivably due to the higher Lewis acidity of the Zn(II) than the Cd(II) center and to a higher accessibility of the metal centers in the former framework. We have also checked the heterogeneity and recyclability of these coordination polymers, showing that they remain active at least after four recyclings.

scholarly journals Synthesis and self-assembly of a penta[60]fullerene bearing benzo[ghi]perylenetriimide units

RSC Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 6002-6007
Author(s):  
Clément Drou ◽  
Théo Merland ◽  
Antoine Busseau ◽  
Sylvie Dabos-Seignon ◽  
Antoine Goujon ◽  
...  
Keyword(s):  
Self Assembly ◽  
Π Interactions

New penta(organo)fullerene bearing five benzo[ghi]perylenetriimide units has been synthesized to form self-assemblies through π–π interactions.

A multi-responsive organogel and colloid based on the self-assembly of a Ag(i)-azopyridine coordination polymer

Soft Matter ◽  
2021 ◽  
Vol 17 (13) ◽  
pp. 3654-3663
Author(s):  
Botian Li ◽  
Da Xiao ◽  
Xiaodong Gai ◽  
Bo Yan ◽  
Haimu Ye ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Self Assembly ◽  
The Self

A multi-responsive self-healable organogel and colloid were fabricated by the assembly of a coordination polymer derived from Ag(i) and azopyridine ligands.

A series of helical coordination polymers based on two racemic bis(pyridylmethylene) propane-1,2-diamine ligands: relationship of conformations, structures and properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7249-7259 ◽  
Author(s):  
Li-Na Zhu ◽  
Zhao-Peng Deng ◽  
Li-Hua Huo ◽  
Shan Gao
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
The Self ◽  
Metal Salts ◽  
Structures And Properties ◽  
Relationship Of ◽  
Diamine Ligands

The self-assembly of d10 metal salts and two racemic bis(pyridyl) diamine ligands generates ten complexes, showing diverse helical and wavelike chains, (4,4) layers, as well as 3D sqc and uog nets.

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