Coordination Polymers: Design and Application

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 3008

Special Issue Editor

Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Interests: MOFs; coordination chemistry; catalysis; sensing; bio-inorganic chemistry
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Special Issue Information

Dear Colleagues,

In chemistry and materials science, coordination polymers (CPs) are among the most promising materials currently available. They are constructed using a combination of organic linkers and metal ions which gives rise to the formation of various structures, such as one-dimensional (1D) and three-dimensional (3D) structures. The infinite network in CPs is based on coordinated bonds that are highly specific, directional and strong enough to create resilient materials. In addition to metals and ligands, CPs can also contain guest molecules or counterions as auxiliary components. When designing CPs, organic ligands and metal ions are carefully selected in order to achieve desirable structures. However, by altering the reaction conditions such as reaction pressure, temperature or guest molecules or even pH, coordination polymers can be structurally and topologically modified, which can lead to a wide variety of topologically and structurally exclusive products. Due to their diverse structures and topologies, these CPs are often used in gas storage/separation, luminescent materials, catalysis, magnetism, conductivity, etc. Although many CPs have already been reported with diverse applications, the development of new materials with unique properties still has a great deal of scope in future research.

Thus, this Special Issue of Crystals titled “Coordination Polymers: Design and Application” will demonstrate the versatility of CPs in many fields and will encourage further developments. This issue will summarize the recent developments, advancements and future prospectives of this multidisciplinary field of coordination polymers.

Dr. Anup Paul
Guest Editor

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Keywords

  • coordination polymers
  • catalysis
  • sensing
  • magnetism
  • gas adsorption/separation
  • drug delivery
  • supercapacitors
  • energy conversion reactions
  • wastewater treatment

Published Papers (2 papers)

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9 pages, 2163 KiB  
Article
Self-Assembly Heterometallic Cu-Ln Complexes: Synthesis, Crystal Structures and Magnetic Characterization
by Shaoliang Zhang, Ruili Du, Xiufang Fan, Xinhua Zhao, Yanlan Wang and Shanshan Li
Crystals 2023, 13(3), 535; https://doi.org/10.3390/cryst13030535 - 21 Mar 2023
Cited by 1 | Viewed by 1235
Abstract
Using N2O4 donor symmetric ligand H2L and dca co-ligand, two new isostructural dinuclear CuII–LnIII complexes [Cu(Cl)(L)Ln(NO3)(CH3OH)(H2O)(dca)] [Ln=Ho (1CuHo), Gd (2CuGd)] [H2L = 6,6′-((1E,1′E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))bis(2-methoxyphenol); dca=dicyanamide] [...] Read more.
Using N2O4 donor symmetric ligand H2L and dca co-ligand, two new isostructural dinuclear CuII–LnIII complexes [Cu(Cl)(L)Ln(NO3)(CH3OH)(H2O)(dca)] [Ln=Ho (1CuHo), Gd (2CuGd)] [H2L = 6,6′-((1E,1′E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))bis(2-methoxyphenol); dca=dicyanamide] were designed, synthesized and studied. In the two isostructural compounds, the geometric environment around the nine-coordinated Ln(III) ions is muffin, whereas the geometry of the penta-coordinated Cu(II) ions is square pyramid. The magnetic properties of both complexes were also studied. Direct current magnetic susceptibility measurements indicate ferromagnetic interactions between the Cu(II) ion and Gd(III) ion in complex 2CuGd. Alternating current (ac) magnetic measurements indicate that complex 1CuHo displays slow magnetic relaxation behaviour. Full article
(This article belongs to the Special Issue Coordination Polymers: Design and Application)
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15 pages, 4315 KiB  
Article
Centrosymmetric Nickel(II) Complexes Derived from Bis-(Dithiocarbamato)piperazine with 1,1′-Bis-(Diphenylphosphino)ferrocene and 1,2-Bis-(Diphenylphosphino)ethane as Ancillary Ligands: Syntheses, Crystal Structure and Computational Studies
by Devyani Srivastava, Om Prakash, Gabriele Kociok-Köhn, Abhinav Kumar, Abdullah Alarifi, Naaser A. Y. Abduh, Mohd Afzal and Mohd Muddassir
Crystals 2023, 13(2), 343; https://doi.org/10.3390/cryst13020343 - 17 Feb 2023
Cited by 2 | Viewed by 1494
Abstract
Two Ni(II) complexes with the formula [{Ni(dppf)}2{(L1)2}](PF6)2 (Ni-I) and [{Ni(dppe)}2{(L1)2}](PF6)2 (Ni-II) were prepared by reacting [Ni(dppf)Cl2] and [Ni(dppe)Cl2] (dppf = 1,1′-Bis-(diphenylphosphino)ferrocene; dppe = 1,2-Bis-(diphenylphosphino)ethane) with [...] Read more.
Two Ni(II) complexes with the formula [{Ni(dppf)}2{(L1)2}](PF6)2 (Ni-I) and [{Ni(dppe)}2{(L1)2}](PF6)2 (Ni-II) were prepared by reacting [Ni(dppf)Cl2] and [Ni(dppe)Cl2] (dppf = 1,1′-Bis-(diphenylphosphino)ferrocene; dppe = 1,2-Bis-(diphenylphosphino)ethane) with secondary amine piperazine derived ligand disodium bis-(dithiocarbamate)piperazine ((piper(dtc)2 = L1) and counter anion PF6. These complexes were characterized by elemental analyses, FT-IR, 1H, 13C and 31P NMR, UV-Vis. spectroscopy and single crystal X-ray diffraction. The X-ray analyses reveal centrosymmetric structures where each Ni(II) centre adopts distorted square planar geometry defined by two sulfur centres of dithiocarbamate ligand and two phosphorus centres of dppf and dppe ligands in Ni-I and Ni-II, respectively. The supramolecular framework of both Ni-I and Ni-II are sustained by C-H⋯π and C-H⋯F interactions, and they also display interesting intramolecular C-H⋯Ni anagostic interactions. Further, the nature of these interactions are studied using Hirshfeld surface analyses, DFT and quantum theory of atoms in molecules (QTAIM) calculations. Additionally, non-covalent interaction (NCI) plot analyses were conducted to gain additional insight into these non-covalent interactions. This work is vital in a new approach towards the rational designing of the centrosymmetric molecules with interesting architectures. Full article
(This article belongs to the Special Issue Coordination Polymers: Design and Application)
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