An improved synthesis of potassium hexacyanoruthenate(II)

Krause, Ronald A.; Violette, Carol A.

doi:10.1016/s0020-1693(00)82239-2

Cited by 26 publications

(20 citation statements)

References 6 publications

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“…Materials and reagents: Diimine ligands, 1,10-phenanthroline (phen), 2,2'-bipyridine (bpy), and 4,4'-dimethyl-2,2'-bipyridine (Me 2 bpy) were purchased from Acros Organics. The phosphine ligands, triphenylphosphine, tri-p-tolylphosphine [15] and K 4 [Ru(CN) 6 ] [16] were synthesized according to literature procedures. All of the other reagents and solvents were of analytical grade and were used without further purification.…”

Section: Methodsmentioning

confidence: 99%

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Luminescent Cyanoruthenate(II)Diimine and Cyanoruthenium(II)Diimine Complexes

Feng

Zhang

Lai

et al. 2013

Chemistry A European J

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To improve the emission and excited-state properties of luminescent cyanometalates, new classes of highly solvatochromic luminescent cyanoruthenium(II) and cyanoruthenate(II) complexes of the general formulae [Ru(PR3)2(CN)2(NN)] and K[Ru(PR3)(CN)3(NN)], respectively, were developed. These complexes could be readily synthesized through the ligand-substitution reaction of K2[Ru(CN)4(PR3)2] with a diimine ligand. The geometrical isomerism of these complexes was characterized by using various spectroscopic techniques. Their photophysical properties, solvatochromism, and electrochemistry have also been investigated. Our detailed study showed that many of these complexes exhibited extremely environmentally sensitive emissions and significantly improved emission quantum efficiencies and lifetimes compared with the well-studied tetracyanoruthenate systems.

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Section: Methodsmentioning

confidence: 99%

“…These commercially available reagents were used without further purification. [Ru(PR 3 ) 3 Cl 2 ]15 and K 4 [Ru(CN) 6 ]16 were synthesized according to literature procedures. All of the other reagents and solvents were of analytical grade and were used without further purification.…”

Section: Methodsmentioning

confidence: 99%

Luminescent Cyanoruthenate(II)Diimine and Cyanoruthenium(II)Diimine Complexes

Feng

Zhang

Lai

et al. 2013

Chemistry A European J

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“…[22] K 4 [Ru(CN) 6 ]·3 H 2 O was prepared according to a literature method. [23] Caution! Potassium cyanide is very toxic and should be handled with care.…”

Section: Methodsmentioning

confidence: 99%

“…2‐Iodo‐5‐methoxypyridine was synthesized according to literature methods 22. K 4 [Ru(CN) 6 ] ⋅ 3 H 2 O was prepared according to a literature method 23. Caution!…”

Section: Methodsmentioning

confidence: 99%

Syntheses and Photophysical Properties of N‐Pyridylimidazol‐2‐ylidene Tetracyanoruthenates(II) and Photochromic Studies of Their Dithienylethene‐Containing Derivatives

Duan

Yam

2010

Chemistry A European J

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A series of tetracyanoruthenate(II) with chelating pyridyl N-heterocyclic carbene ligands (NHC-py) was synthesized and characterized. Their photophysical and electrochemical properties as well as the photochromic behavior of their dithienylethene-containing complexes were studied. Photocyclization was found to take place upon irradiation into the metal-to-ligand charge transfer (MLCT) absorption bands of these complexes, and evidence is provided to support the triplet-sensitizing reaction pathway.

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“…The starting compound, K 4 [Ru(CN) 6 ], was obtained using Krause and Violette procedure 8 . In this process, the amount of KCN was increased by 20% to compensate for the fast decomposition observed for this reagent.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%

Effect of ionising radiation on potassium pentacyanonitrosylruthenate(II): an Electron Spin Resonance study

Vugman¹,

Pinhal²,

Santos³

et al. 2000

J. Braz. Chem. Soc.

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O sal pentacianonitrosilrutenato(II) de potássio, em forma amorfa, foi sintetizado e caracterizado por espectroscopias UV, IR, difração de raios X e análise termogravimétrica. Amostras irradiadas por raios X revelam, por espectroscopia de Ressonância Paramagnética Eletrônica, a presença de complexos paramagnéticos de rutênio (I) e de radicais NO 2. Os parâmetros do hamiltoniano de spin medidos para o complexo [Ru(CN) 5 NO] 3-(g ⊥ = 2.0064, A ⊥ (14 N) = 60.7 MHz, g || = 1.999, A || (14 N) = 77.3 MHz) indicam uma captura eletrônica em um orbital molecular π* do grupo nitrosil com a participação de orbitais d xz and d yz do rutênio, como recentemente previsto por cálculos teóricos. Íons de prata, presentes como impurezas oriundas da rota sintética, são reduzidos a Ag(0) durante a irradiação e interagem com quatro nitrogênios equivalentes em um sítio distorcido, originando um espectro de RPE anisotrópico. Amorphous potassium pentacyanonitrosylruthenate (II) was synthesized and characterized by UV, IR, X-ray diffraction and thermogravimetric analysis. Electron Spin Resonance spectroscopy reveals the presence of paramagnetic ruthenate (I) complexes and NO 2 radicals in the X-irradiated diamagnetic salt. Spin-hamiltonian parameters of the [Ru(CN) 5 NO] 3complex (g ⊥ = 2.0064, A ⊥ (14 N) = 60.7 MHz, g || = 1.999, A || (14 N) = 77.3 MHz) support an electron capture in a π* molecular orbital of the nitrosyl group mixed with d xz and d yz ruthenium orbitals as recently predicted by theoretical calculations. Silver ions, present as impurities, are reduced to Ag(0) by X-irradiation and coordinate to four magnetically equivalent nitrogens in a distorted site, giving rise to a well resolved anisotropic ESR powder spectrum.

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An improved synthesis of potassium hexacyanoruthenate(II)

Cited by 26 publications

References 6 publications

Luminescent Cyanoruthenate(II)Diimine and Cyanoruthenium(II)Diimine Complexes

Luminescent Cyanoruthenate(II)Diimine and Cyanoruthenium(II)Diimine Complexes

Syntheses and Photophysical Properties of N‐Pyridylimidazol‐2‐ylidene Tetracyanoruthenates(II) and Photochromic Studies of Their Dithienylethene‐Containing Derivatives

Effect of ionising radiation on potassium pentacyanonitrosylruthenate(II): an Electron Spin Resonance study

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