A Thermally and Electrochemically Switchable Molecular Array Based on a Manganese Schiff Base Complex

Ruiz‐Molina, Daniel; Wurst, Klaus; Hendrickson, D. N.; Rovira, Concepció; Veciana, Jaume

doi:10.1002/1616-3028(20020517)12:5<347::aid-adfm347>3.0.co;2-t

Cited by 24 publications

(12 citation statements)

References 9 publications

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“…Afterwards, valence tautomerism has also been reported for the related manganese complex [Mn IV (Cat‐N‐SQ) 2 ] 557. Whereas its solid‐state structural features are in agreement with the electronic distribution that involves the manganese atom in its oxidation state (IV), its solution temperature‐dependence shows that this complex exhibits valence tautomerism involving three different tautomeric isomers associated to the three different oxidation states of the manganese ion: Mn(IV), Mn(III) and Mn(II).…”

Section: Switching Materialsmentioning

confidence: 76%

Catechol‐Based Biomimetic Functional Materials

Saiz‐Poseu²,

et al. 2012

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Abstract.Catechols are found in nature taking part in a remarkably broad scope of biochemical processes and functions. Though not exclusively, such versatility may be traced back to several properties uniquely found together in the o -dihydroxyaryl chemical function; namely, its ability to establish reversible equilibria at moderate redox potentials and pHs and to irreversibly cross-link through complex oxidation mechanisms; its excellent chelating properties, greatly exemplifi ed by, but by no means exclusive, to the binding of Fe 3 + ; and the diverse modes of interaction of the vicinal hydroxyl groups with all kinds of surfaces of remarkably different chemical and physical nature. Thanks to this diversity, catechols can be found either as simple molecular systems, forming part of supramolacular structures, coordinated to different metal ions or as macromolecules mostly arising from polymerization mechanisms through covalent bonds. Such versatility has allowed catechols to participate in several natural processes and functions that range from the adhesive properties of marine organisms to the storage of some transition metal ions. As a result of such an astonishing range of functionalities, catechol-based systems have in recent years been subject to intense research, aimed at mimicking these natural systems in order to develop new functional materials and coatings. A comprehensive review of these studies is discussed in this paper.

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Section: Switching Materialsmentioning

confidence: 76%

Catechol‐Based Biomimetic Functional Materials

Saiz‐Poseu²,

et al. 2012

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“…For example, four‐state switching has been reported for [Co III‐LS (3,5‐dbcat)(3,5‐dbsq)(bpy)] by Ruiz et al 65. More recently, the same group reported similar redox‐tunable valence tautomerism for [Co III (cat‐N‐bq)(cat‐N‐sq)] (Scheme 3) 67…”

Section: Valence Tautomerismmentioning

confidence: 79%

“…The coupling of valence tautomerism and electrochemistry gives rise to multistate switching systems 65–67. For example, four‐state switching has been reported for [Co III‐LS (3,5‐dbcat)(3,5‐dbsq)(bpy)] by Ruiz et al 65.…”

Section: Valence Tautomerismmentioning

confidence: 99%

Control of Magnetic Properties through External Stimuli

Sato¹,

Tao²,

Zhang³

2007

Angew Chem Int Ed

1,050

614

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The magnetic properties of many magnetic materials can be controlled by external stimuli. The principal focus here is on the thermal, photochemical, electrochemical, and chemical control of phase transitions that involve changes in magnetization. The molecular compounds described herein range from metal complexes, through pure organic compounds to composite materials. Most of the Review is devoted to the properties of valence-tautomeric compounds, molecular magnets, and spin-crossover complexes, which could find future application in memory devices or optical switches.

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“…Die Kombination von valenztautomeren Verbindungen mit elektrochemischen Methoden führt zu Systemen mit Übergängen zwischen multiplen Zuständen. [65][66][67] Eine Reihe anderer Mn-Komplexe zeigt ebenfalls Valenztautomerisierungen. [70][71][72][73] Hierunter ist [Mn IV (3,6dbsq) 2 (3,6-dbcat)] (Schema 4) das erste Beispiel eines Übergangsmetallkomplexes mit Valenztautomerie, der nicht die M(N-N)(dbq) 2 -Struktur aufweist (hierbei ist M = Co oder Mn, dbq = 3,5-dbsq, 3,5-dbcat, 3,6-dbsq oder 3,6-dbcat).…”

Section: Kopplung Von Valenztautomerie Und Elektrochemieunclassified

“…[74] ¾hnlich wie bei den Cobaltkomplexen wurden auch im Fall der Mangankomplexe elektrochemisch schaltbare Molekülzustände gefunden. [67]…”

Section: Kopplung Von Valenztautomerie Und Elektrochemieunclassified

Magnetische Molekülverbindungen: Schaltung magnetischer Eigenschaften durch externe Stimuli

2007

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Man kennt eine Vielzahl magnetischer Materialien, deren magnetische Eigenschaften durch externe Stimuli geschaltet werden können. Das Hauptaugenmerk liegt auf der thermischen, photochemischen, elektrochemischen und chemischen Steuerung von Phasenübergängen, die mit einem Wechsel der Magnetisierung einhergehen. Die Bandbreite der beschriebenen Spezies reicht von Metallkomplexen über rein organische Verbindungen bis zu Kompositmaterialien, wobei der Schwerpunkt dieses Aufsatzes auf den Eigenschaften von valenztautomeren Verbindungen, molekularen Magneten und Spin‐Crossover‐Komplexen liegt, für die Anwendungen als Speichermedien oder optische Schalter in Aussicht stehen.

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A Thermally and Electrochemically Switchable Molecular Array Based on a Manganese Schiff Base Complex

Cited by 24 publications

References 9 publications

Catechol‐Based Biomimetic Functional Materials

Catechol‐Based Biomimetic Functional Materials

Control of Magnetic Properties through External Stimuli

Magnetische Molekülverbindungen: Schaltung magnetischer Eigenschaften durch externe Stimuli

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