Quantum yields of production of iron(II) and of cobalt(II) in the photolysis of solid potassium trisoxalatoferrate(III) trihydrate and potassium trisoxalatocobaltate(III) trihydrate

Spencer, H. E.

doi:10.1021/j100727a036

Cited by 14 publications

(3 citation statements)

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“…These are photoconductivity,3 the large effect of evacuation, and the intensity dependence of for unevacuated coatings. 3 The photoconductivity indicates hole-electron pair production in the electronic bands of the solid hvh + e (4) where h and e represent holes and electrons, respectively. The fates of these electrons and holes occupy much of the subsequent mechanistic considerations.…”

Section: Methodsmentioning

confidence: 99%

Photochemical studies of solid potassium trisoxalatoferrate(III) trihydrate

Spencer¹,

Schmidt²

1971

J. Phys. Chem.

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of iron group elements, ions must be available in quantities of, for instance, about 0.01, 0.1, 0.35, 0.8, and 1.6 ^equiv (or 0.4, 3, 10, 25, and 50 Mg) for bead diameters of 0.2, 0.4, 0.6, 0.8, and 1.0 mm, respectively.(iii) However, the method is inapplicable to ion species, such as polyelectrolytes, which may not be adsorbed by the resin in sufficient quantity to saturate the exchange capacity of the resin. Photochemical Studies of Solid Potassium Trisoxalatoferrate(III) Trihydrate by . E.

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Section: Methodsmentioning

confidence: 99%

Photochemical studies of solid potassium trisoxalatoferrate(III) trihydrate

Spencer¹,

Schmidt²

1971

J. Phys. Chem.

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“…ML . ) M-L + [16] where the arrow above the molecule ML shows the direction of the charge transfer. Thus, in both cases, MLCT and LMCT, the absorption of electromagnetic radiation results in an oxidation-reduction process.…”

Section: Ligand L~eld Transition (Or D --> D Transitions)--these Are ...mentioning

confidence: 99%

“…--The redox photolysis of the trisoxalatoferrate(III) in the solid state and in the solution (16,17) proceeds in such a way that the tripositive Fe 8+ ion is reduced to the dipositive Fe 2+ ion and oxalate is oxidized to carbon dioxide, according to the overall reaction hv 2Fe (C204)s 3-) 2Fe II -P 5C204 s-+ 2CO2 [17] The net primary photochemical reduction reaction of monoxalatoiron(II) ion is, according to Cooper and De Graft (18), the ligand to metal charge transfer hv Fe(CsO4) +…”

Section: Photochemical Reduction Of Complexed Ferric Ionsmentioning

confidence: 99%

Photochemical Selective Activation for Electroless Metal Deposition on Nonconductors

Paunović¹

1980

J. Electrochem. Soc.

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The photochemical methods for selective activation of nonconductors for electroless metal deposition have been classified in this review on the basis of kinetic scheme involved. There are three general kinetic schemes for the formation of catalytic metallic nuclei on nonconductors: photoelectrochemical, photoelectron, and intramolecular photoreduction. Photoelectrochemical scheme involves a photochemical reaction which is followed by an electrochemical reaction. The photochemical reaction is used to produce or deactivate the reducing agent. Catalytic metallic nuclei are formed in the subsequent electrochemical reaction. In the photoelectron method, electrons necessary for the formation of catalytic metallic nuclei M from metallic cations M+n are generated in the direct absorption process of a photon by a semiconductor crystal, which results in the generation of an electron and a hole. In the intramolecular photoreduction kinetic scheme catalytic metallic nuclei are formed in the intramolecular ligand to metal electron transfer process. This review surveys fundamental photochemical principles and discusses problems and prospects of the above processes.

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Photoredoxreaktionen an Mono‐oxalato‐bisphenanthrolin‐kobalt(III)‐Komplexen im festen Zustand

Hennig¹,

Hempel²,

Ackermann³

et al. 1976

Zeitschrift anorg allge chemie

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Es wird über Photoredoxreaktionen an Komplexen des Typs [Co(phen)2ox]X · nH2O (phen = 1,10‐Phenanthrolin, ox = C2O4−; X− = F, Cl, Br, J, HCOO, C3H7COO, ClO4; n = 1–3) im festen Zustand berichtet, die durch Einstrahlung bei 350 nm ausgelöst werden. Durch Photolyse an dünnen Schichten und in KBr‐Preßlingen wurden die Quantenausbeuten der Photoredoxreaktionen über naßanalytische bzw. IR‐spektroskopische Konzentrationsermittlung in Abhängigkeit von unterschiedlichen Anionen X ermittelt. Der Bruttoumsatz der Photolysereaktionen wurde analytisch, mittels spektroskopischer Methoden sowie magnetochemisch bestimmt und die Endprodukte wurden identifiziert. Auf Grund der Stöchiometrie der Reaktion und dem EPR‐spektroskopischen Nachweis von Oxalatanionradikalen wird ein Mechanismus für den Ablauf der Reaktion vorgeschlagen.

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Quantum yields of production of iron(II) and of cobalt(II) in the photolysis of solid potassium trisoxalatoferrate(III) trihydrate and potassium trisoxalatocobaltate(III) trihydrate

Cited by 14 publications

References 0 publications

Photochemical studies of solid potassium trisoxalatoferrate(III) trihydrate

Photochemical studies of solid potassium trisoxalatoferrate(III) trihydrate

Photochemical Selective Activation for Electroless Metal Deposition on Nonconductors

Photoredoxreaktionen an Mono‐oxalato‐bisphenanthrolin‐kobalt(III)‐Komplexen im festen Zustand

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