Coordination polymer

About: Coordination polymer is a research topic. Over the lifetime, 11988 publications have been published within this topic receiving 212219 citations.

Facile synthesis of a Ag(I)-doped coordination polymer with enhanced catalytic performance in the photodegradation of azo dyes in water

Abstract: Ambient temperature solid state reaction of a preformed compound {[Pb(Tab)2]2(PF6)4}n (1) (TabH = 4-(trimethylammonio)benzenethiol) with two equiv. of 1,2-bis(4-pyridyl)ethylene (bpe) quantitatively produces a unique two-dimensional coordination polymer {[Pb(Tab)2(bpe)]2(PF6)4}n (2). The Ag(I)-doped coordination polymer {[Pb(Tab)2(bpe)]2(PF6)4·1.64AgNO3}n (2a) is readily prepared by immersing 2 into AgNO3 aqueous solution. Compared with its two precursors 1 and 2, 2a exhibits greatly enhanced catalytic activity towards the photodegradation of a family of 12 azo dyes within a short period of time under UV light irradiation and excellent adaptability on the elimination of azo dyes in water. It is anticipated that the ‘Ag(I)-doping’ synthetic strategy reported in this work may be applicable to other coordination polymer systems containing thiolate ligands for the preparation of various metal ion-doped multidimensional coordination polymers with new topological structures and better catalytic performances in the photodecomposition of azo dyes in industrial wastewater.

Integration of Intrinsic Proton Conduction and Guest-Accessible Nanospace into a Coordination Polymer

Abstract: We report the synthesis and characterization of a coordination polymer that exhibits both intrinsic proton conductivity and gas adsorption. The coordination polymer, consisting of zinc ions, benzimidazole, and orthophosphate, exhibits a degree of flexibility in that it adopts different structures before and after dehydration. The dehydrated form shows higher intrinsic proton conductivity than the original form, reaching as high as 1.3 × 10–3 S cm–1 at 120 °C. We found that the rearranged conduction path and liquid-like behavior of benzimidazole molecules in the channel of the framework afforded the high proton conductivity. Of the two forms of the framework, only the dehydrated form is porous to methanol and demonstrates guest-accessible space in the structure. The proton conductivity of the dehydrated form increases by 24 times as a result of the in situ adsorption of methanol molecules, demonstrating the dual functionality of the framework. NMR studies revealed a hydrogen-bond interaction between the fr...

Dimers and chains of {3d-4f} single molecule magnets constructed from heterobimetallic tectons.

Abstract: A tetranuclear complex and a 1-D coordination polymer with a ladder-like topology have been obtained by connecting [NiIIDyIII] nodes with dicarboxylato ligands: [Ni2(valpn)2Dy2III(pdca)2(NO3)(H2O)6](NO3)·4H2O 1, and ∞1[Ni2(H2O)2(valpn)2Dy2(tfa)3]·4CH3CN 2 (valpn2− = the dianion of the Schiff base resulting from reacting o-vanillin with 1,3-propanediamine; pdca2− = the dianion of 2,6-pyridinedicarboxylic acid; tfa2− = the dianion of the terephthalic acid). The magnetic measurements show a ferromagnetic interaction between NiII and DyIII, and that both compounds behave like SMM with strong tunnelling. The barrier of 2 (17.4 K) is higher than that of 1 (13.6 K).

Frontiers in crystal engineering

Abstract: List of Contributors. Foreword. 1. Applications of Crystal Engineering Strategies in Solvent-free Reactions: Toward a Supramolecular Green Chemistry. 1 Introduction. 1 Mechanochemical preparation of Hydrogen-Bonded Adducts. 1 Mechanically induced formation of covalent bonds. 1 The solvent-free chemistry of the zwitterion. 1 Concluding remarks. 1 Acknowledgements. References. 2. Crystal Engineering of Pharmaceutical Co-crystals. 1 Introduction. 2 What is the origin of polymorphism and is it prevalent in co-crystals?. 3 What is the pharmaceutical co-crystal?. 4 Conclusions. 5 Acknowledgements. References. 3. Template-controlled Solid-state Synthesis: Toward a General Form of Covalent Capture in Molecular Solids. 1 Introduction. 2 Controlling reactivity using linear templates. 3 Template-controlled solid-state reactivity. 4 Target-oriented organic synthesis in the organic state. 5 Other linear templates. 6 Summary and outlook. References. 4. Interplay of Non-covalent Bonds: Effect of Crystal Structure on Molecular Structure. 1 Introduction. 2 Second-sphere coordination. 3 Soft coordination environments. 4 Speciation. 5 Molecular conformation. 6 Conclusions. References. 5. Crystal Engineering of Halogenated Heteroaromatic Clathrate Systems. 1 Introduction. 2 Aromatic edge-edge C-H...N dimers. 3 Heteroatom-1,3-peri interactions. 4 Molecular pen structures. 5 Halogenated edge-edge interactions. 6 Pi-halogen dimer (PHD) interactions. 7 Molecular bricks, spheres and grids. 8 Conclusions. 9 Acknowledgements. References. 6. Steric Control over Supramolecular Aggregation: A Design Element in Crystal Engineering? 1 Introduction. 2 Diorganotin carboxylates. 3 Triorganotin carboxylates. 4 Binary zinc xanthates. 5 Bipyridine adducts of zinc dithiophosphates. 6 Binary mercury dithiocarbamates. 7 Binary bismuth xanthates. 8 Conclusions and Outlook. 9 Acknowledgements. References. 7. Incorporating Molecular Hosts into Network Structures. 1 Introduction. 2 Hydrogen-bonded structures with CTV. 3 Coordination polymers. 4 Extended-arm CTV derivatives and their coordination polymers. 5 Conclusions. 6 Acknowledgements. References. 8. Interpenetrating Networks. 1 Introduction. 2 Notation. 3 1-D nets. 4 2-D nets. 5 3-D nets. 6 Unusual interpenetration. 7 Consequences of interpenetration. 8 Self-penetration. 9 Entangled but not interpenetrating. 10 Conclusions. References. 9. Architecture and Functional Engineering Based on Paddlewheel Dinuclear Tetracarboxylate Building Blocks. 1 Introduction. 2 Synthetic strategy. 3 Architecture engineering based on preorganized building blocks. 4 Conductive and magnetic properties based on preorganized building blocks. 5 Porous properties based on preorganized and in situ building blocks. 6 Conclusion and outlook. References. 10. Supramolecular Interactions in Directing and Sustaining Coordination Molecular Architectures. 1 Introduction. 2 Molecular architectures assembled by hydrogen-bonding interactions. 3 Molecular architectures assembled VIA ... Interactions. 4 Metallophilic interactions. 5 Concluding remarks and outlooks. 6 Acknowledgements. References. 11. The Structure-directing Influence of Hydrogen Bonding in Coordination Polymers. 1 Introduction. 2 A novel cadmium cyanide network. 3 Dihydroxybenzoquinone and Chloranilic acid derivatives of Lanthanides. 4 A stable zinc saccharate network. 5 Anionic metal-carbonate networks. 6 Conclusions. References. 12. Hydrogen-bonded Coordination Polymeric Structures. 1 Introduction. 2 Solid-state supramolecular transformation of hydrogen-bonded 3-D network to 3-D coordination polymetric network structures by thermal dehydration. 3 Interconvertible solid-state supramolecular transformation. 4 Solid-state transformation of a helical coordination polymetric structure to a 3-D coordination network structure by thermal dehydration. 5 Influence of chiral centers on the helicity of the coordination polymers. 6 Consequences of C=O... interactions. 7 Supramolecular isomerism. 8 Starlike channels and hexagonal diamondoid topology. 9 Hydrogen-bonded helical water molecules inside a staircase 1-D coordination polymer. 10 Hydrogen-bonded polyrotaxane-like structure containing cyclic (H2O)4 in [Zn(OAc)2(m-bpe)].2H2O. 11 Summary. 12 Acknowledgements. References. Index.

Ultrasound-Induced Switching of Sheetlike Coordination Polymer Microparticles to Nanofibers Capable of Gelating Solvents

Abstract: We herein demonstrate a new gelation mechanism based on a readily available coordination polymer {Zn(bibp)2(OSO2CF3)2}n, in which ultrasound changes the morphology of the material from sheetlike microparticles into nanofibers, resulting in the immobilization of organic solvents.