Crystallization, Structure Determination and Reticular Twinning in Iron(III) Salicylate: Fe[(HSal)(Sal)(H2O)2]

Horn, J.A. van der; Souvignier, B.; Lutz, Martin

doi:10.3390/cryst7120377

Cited by 7 publications

(6 citation statements)

References 41 publications

(43 reference statements)

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“…In the majority of cases, the carboxylate group is deprotonated and the hydroxyl group is protonated. [12] This situation is also found here for all four independent salicylate ligands. The hydroxyl groups are only involved in intramolecular hydrogen bonds with the carboxylate oxygen of the same salicylate as acceptor.…”

Section: Introductionsupporting

confidence: 84%

Order-Disorder in Diaquobis(salicylato)copper(II) Revisited

Lutz¹,

Batenburg²

2018

Croat. Chem. Acta

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We re-investigated the crystal structure of diaquobis(salicylato)copper(II), CuSal, which is an OD material with disordered layer stacking. The diffraction pattern consists of sharp Bragg spots and diffuse streaks. From the Bragg reflections we determined the ordered part of the structure, which can either be described by an orthorhombic or a twinned monoclinic lattice. The main motif of the structure consists of one-dimensional coordination polymers that are connected by hydrogen bonds into two-dimensional layers. The layer stacking is disordered and from simulations with a Markovian growth models we could fully explain the diffuse streaks of the current structure when the layers are stacked randomly.

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Section: Introductionsupporting

confidence: 84%

Order-Disorder in Diaquobis(salicylato)copper(II) Revisited

Lutz¹,

Batenburg²

2018

Croat. Chem. Acta

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“…Diflunisal is a typical salicylate derivative and may behave similarly to salicylato ligands. In addition to the typical salicylato monoanion, the double deprotonation of salicylic acid may result in either the bidentate chelating coordination of salicylato ligands leading to the formation of mononuclear complexes [ 89 , 90 , 91 , 92 ] or the tridentate bridging mode leading to polynuclear complexes [ 93 , 94 , 95 , 96 , 97 ].…”

Section: Resultsmentioning

confidence: 99%

Iron(III) Complexes with Non-Steroidal Anti-Inflammatory Drugs: Structure, Antioxidant and Anticholinergic Activity, and Interaction with Biomolecules

Dimiza

Barmpa

Chronakis

et al. 2023

IJMS

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One the main research goals of bioinorganic chemists is the synthesis of novel coordination compounds possessing biological potency. Within this context, three novel iron(III) complexes with the non-steroidal anti-inflammatory drugs diflunisal and diclofenac in the presence or absence of the nitrogen donors 1,10-phenanthroline or pyridine were isolated and characterized by diverse techniques. The complexes were evaluated for their ability to scavenge in vitro free radicals such as hydroxyl, 1,1-diphenyl-2-picrylhydrazyl and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radicals, revealing their selective potency towards hydroxyl radicals. The in vitro inhibitory activity of the complexes towards the enzymes acetylcholinesterase and butyrylcholinesterase was evaluated, and their potential to achieve neuroprotection appeared promising. The interaction of the complexes with calf-thymus DNA was examined in vitro, revealing their ability to intercalate in-between DNA nucleobases. The affinity of the complexes for serum albumins was evaluated in vitro and revealed their tight and reversible binding.

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“…The asymmetric unit in the mononuclear configuration contains one Fe atom, two ο-HOC 6 H 4 COO À ligands, and two water molecules. [33] Among them, the central Fe atoms are hexacoordinated with oxygen from carboxylic acid, phenolic hydroxyl group and water molecules to form a stable octahedral structure. Based on the experimental facts and the study of Co-salicylate MOF by Bhaumik et al, [34] we take Fe-MOF-B as an example and give a schematic diagram of binuclear configuration.…”

Section: Resultsmentioning

confidence: 99%

“…As mentioned before, there are two different coordination modes between FeCl 2 ⋅ 4H 2 O and sodium salicylate due to different pH values (Figure 2). The asymmetric unit in the mononuclear configuration contains one Fe atom, two ο ‐HOC 6 H 4 COO − ligands, and two water molecules [33] . Among them, the central Fe atoms are hexacoordinated with oxygen from carboxylic acid, phenolic hydroxyl group and water molecules to form a stable octahedral structure.…”

Section: Resultsmentioning

confidence: 99%

Configuration‐Dependent Bimetallic Metal–Organic Framework Nanorods for Efficient Electrocatalytic Water Oxidation

Zhang

et al. 2022

ChemElectroChem

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The correlation between coordination mode and electrocatalytic water oxidation behavior are highly remarkable. Herein, we designed an iron-based metal-organic framework (MOF) to realize a configuration variety from the traditional mononuclear configuration (Fe-MOF-M) to the binuclear structure (Fe-MOF-B). The configuration of Fe-MOF was successfully regulated by pH control and nickel was introduced into the iron-based MOF to obtain an efficient heterogeneous electrocatalyst. Benefiting from the dual function of adding Ni atoms, enhanced stability and optimized synergistic effect of different metal sites, the Ni 0.8 Fe 0.2 -MOF-B delivers a current density of 10 mA cm À 2 at a low overpotential of 301 mV with a small Tafel slope of 62.3 mV dec À 1 in 0.1 M KOH. This work presents a simple method to adjust configuration and the Ni 0.8 Fe 0.2 -MOF-B plays a supporting role to investigate the impact of configuration on OER performance.

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Crystallization, Structure Determination and Reticular Twinning in Iron(III) Salicylate: Fe[(HSal)(Sal)(H2O)2]

Cited by 7 publications

References 41 publications

Order-Disorder in Diaquobis(salicylato)copper(II) Revisited

Order-Disorder in Diaquobis(salicylato)copper(II) Revisited

Iron(III) Complexes with Non-Steroidal Anti-Inflammatory Drugs: Structure, Antioxidant and Anticholinergic Activity, and Interaction with Biomolecules

Configuration‐Dependent Bimetallic Metal–Organic Framework Nanorods for Efficient Electrocatalytic Water Oxidation

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