Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

Fromm, Katharina M.; Sague, Jorge; Robin, Adeline Y.

doi:10.1016/j.ica.2012.12.021

Cited by 16 publications

(6 citation statements)

References 33 publications

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“…Crystallographic data can be found in the Supporting Information (see Table S1). CIF files can be obtained from the Cambridge Crystallographic Data Centre: CCDC-1860971 (1), CCDC-1860972 (2), CCDC-1860973 (3), CCDC-1860974 (4), CCDC-1860975 (5), and CCDC-1860976 (6), CCDC-1860977 (7), and CCDC-1860978 (8). Synthesis of Complexes [LCu(H 2 O)] "LCu" and LNi.…”

Section: ■ Conclusionmentioning

confidence: 99%

“…The design and synthesis of new mixed transition-metal and alkaline-earth-metal complexes is of interest in many fields such as catalysis, − material sciences, − or biochemistry. − Furthermore, their abundance, their affordability, and in most cases their biocompatibility represent a real advantage. However, research on alkaline-earth-metal materials represents a considerable challenge due to the lack of preferred geometrical coordination and coordination numbers resulting from their large ionic radii and electronic configuration. − …”

Section: Introductionmentioning

confidence: 99%

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Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

et al. 2019

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The precise arrangement of metal ions in type and number by a ligand represents an important challenge in biology as well as in materials science. The preorganization of different metal ions such as alkaline-earth and transition-metal ions is of particular interest for the design of catalysts or precursors of oxides. This study is based on a Ω-shaped salen-derived ligand comprising N 2 O 2 and O 2 O 2 coordination sites. The selective binding of Cu(II) and Ni(II) and alkaline-earth-metal ions is influenced by many factors such as the size of the cation, the solvent, or the counterion. UV–vis and 1 H NMR titrations and single-crystal X-ray structures reveal that the obtained complexes tend to adopt different structures in solution compared to the solid state. Mainly discrete motifs with a stoichiometry 1:1 (LM 1 to alkaline-earth-metal ions) have been shown to form in the solid state, whereas in solution, the 2:1 complexes are predominant.

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Section: ■ Conclusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

et al. 2019

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“…We have shown previously that silver coordination polymers, based on silver ions and an innocent ligand, can be used as efficient antimicrobial and biocompatible implant coatings. [41][42][43][44][45][46] The ligand used was derived from nicotinic acid and polyethylene glycol and allowed coordination to silver ions via nitrogen atoms without showing toxicity towards fibroblast cell lines. In order to integrate the VAN into such an implant surface coating (Figure 1) without loss of function, chemical modification of the molecule was necessary.…”

Section: Product Synthesismentioning

confidence: 99%

New Antimicrobial and Biocompatible Implant Coating with Synergic Silver–Vancomycin Conjugate Action

et al. 2014

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Materials foreign to the body are used ever more frequently, as increasing numbers of patients require implants. As a consequence, the numbers of implant-related infections have grown as well, and with increasing resistance. Treatments often fail; thus, new antibacterial coating strategies are being developed by scientists to avoid, or at least strongly reduce, bacterial adhesion to implant surfaces. In this study, we focused on producing a self-protective coating combining silver(I) ions and a vancomycin-derived molecule, intelligent pyridinate vancomycin (IPV), with a synergetic and effective action against bacteria. These Ag(I) -IPV conjugate-coated surfaces are well characterized and exhibit strong bactericidal activity in vitro against Staphylococci strains. Furthermore, the released quantities of both drugs from the coated surfaces do not affect their biocompatibility and soft tissue integration. These newly developed Ag(I) -IPV conjugate coatings thus represent a possible and efficient protection method against bacterial adhesion and biofilm formation during and after implant surgery.

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“…Functional compartments can also be created by substitution of the ligand, allowing the coordination of two different metal ions ,− and originating macrocycle-type compounds. The latter combination can lead to new properties , in compounds such as coordination polymers, − mono- and multimetallic − complexes or oxide materials. − …”

Section: Introductionmentioning

confidence: 99%

Threading Salen-type Cu- and Ni-Complexes into One-Dimensional Coordination Polymers: Solution versus Solid State and the Size Effect of the Alkali Metal Ion

Finelli

Hérault

Crochet

et al. 2018

Crystal Growth & Design

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Compartmentalization of metal ions is crucial in biology as well as in materials science. For the synthesis of single source precursors, the preorganization of different metal ions is of particular interest for the lowtemperature generation of mixed metal oxides. On the basis of a potentially Ω-shaped salen-type ligand providing an N 2 O 2 as well as an O 2 O 2 coordination site, mixed metal coordination compounds with Cu(II) or Ni(II) and alkali metal ions have been studied for their structural and optical properties. UV− vis and 1 H NMR titrations show that the obtained compounds adopt partially different structures in solution compared to the solid state. In the latter case, the coordination geometry is mainly governed by the size of the alkali metal ion as well as the transition metal ion used. ■ INTRODUCTIONThe precise arrangement and compartmentalization of metal ions are important both in biology as well as in materials science.1−5 Siderophores such as iron chelators produced by microbes are for example prototypes for metal specific uptaking agents. These could be used in industrial or environmental cleanup processes to selectively extract metal ions.6 Artificial systems such as salen (N,N′-disalicylidene-ethylenediamine) and its derivatives are commonly employed as versatile chelate ligands in coordination chemistry and obtained by a straightforward condensation reaction. 7 Containing two Schiff base 8 coordinating moieties, this family of ligands is able to bind to transition-metal ions in a tetradentate fashion forming stable complexes through its N 2 O 2 site. Furthermore, they represent versatile ligands type thanks to their tunable design. Several structural studies were undertaken on bi-or trinuclear mono-or heterometallic Schiff base complexes. 33−37Interesting trinuclear structures of Zn-salen based complexes were reported in Cai's work, by tuning the counterions, the solvent, or the reaction conditions. 68 A structural description of a binuclear Zn complex able to undergo transmetalation as well as polynuclear salen compounds was presented by Kleij and coworkers. 69,70 On the basis of salen-type ligands, Nabeshima et al. have described multiple-metal containing host−guest complexes using transmetalation reactions to incorporate the guest ions. 22,71 These ligands can adopt, depending on the ionic radius of the metal ions, a helical conformation in solution. 72,73 They also reported the first efficient and selective introduction of three different metal ions into one ligand under thermodynamic control. 4 While numerous transition metal ions were widely employed along with the salen-derived ligands for multiple purposes, the series with alkali metal ions remain however not entirely investigated. 21,74,75 Previous tests to use alkali ions as guests in larger H 2 L salen-type ligands using also transmetalation were unsuccessful.72 While a recent publication by the Nabeshima group deals with the formation of alkali metal ion complexes with macrocyclic ligands in solution, no 1

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Silver coordination polymers with isonicotinic acid derived short polyethylene glycol – Synthesis, structures, anion effect and solution behavior

Cited by 16 publications

References 33 publications

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

Compartmentalization of Alkaline-Earth Metals in Salen-Type Cu- and Ni-Complexes in Solution and in the Solid State

New Antimicrobial and Biocompatible Implant Coating with Synergic Silver–Vancomycin Conjugate Action

Threading Salen-type Cu- and Ni-Complexes into One-Dimensional Coordination Polymers: Solution versus Solid State and the Size Effect of the Alkali Metal Ion

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