14284-93-6

Basic information

• Product Name: Ruthenium acetylacetonate
• Synonyms: RUTHENIUM(III) 2,4-PENTANEDIONATE;RUTHENIUM(III) ACETYLACETONATE;TRIS(ACETYLACETONATO)RUTHENIUM(III);TRIS(PENTANE-2,4-DIONATO)RUTHENIUM(III);2,4-PENTANEDIONE, RUTHENIUM(III) DERIVATIVE;4-pentanedionato-o,o’)-tris((oc-6-11)-rutheniu;Ruthenium(III) 2,4-pentanedionate~Tris(acetylacetonato)ruthenium(III)~Tris(2,4-pentanedionato)ruthenium(III);Rutheniumacetylacetonateredbrownxtl
• CAS NO: 14284-93-6
• Molecular Formula: C₁₅H₂₁O₆Ru
• Molecular Weight: 398.39
• EINECS: 238-193-0
• Product Categories: Catalysts for Organic Synthesis;Classes of Metal Compounds;Homogeneous Catalysts;Metal Complexes;Ru (Ruthenium) Compounds;Synthetic Organic Chemistry;Transition Metal Compounds;metal beta-diketonate complexes;chemical reaction,pharm,electronic,materials;Ru
• Mol File: 14284-93-6.mol
• Article Data: 27

Chemical Properties

• Melting Point: 260 °C (dec.)(lit.)
• Boiling Point: 187.6 °C at 760 mmHg
• Flash Point: 71.9 °C
• Appearance: White/Crystalline
• Vapor Pressure: 0.174mmHg at 25°C
• Storage Temp.: Store below +30°C.
• Water Solubility: Soluble in most organic solvents such as acetone, chlorinated hydrocarbons, alcohols, cyclohexane and benzene. Insoluble in wate
• CAS DataBase Reference: Ruthenium acetylacetonate(CAS DataBase Reference)
• NIST Chemistry Reference: Ruthenium acetylacetonate(14284-93-6)
• EPA Substance Registry System: Ruthenium acetylacetonate(14284-93-6)

Safety Data

• Hazard Codes: Xi,T
• Statements: 36/37/38
• Safety Statements: 26-36-24/25
• WGK Germany: 3
• F: 10
• TSCA: Yes
• Hazardous Substances Data: 14284-93-6(Hazardous Substances Data)

Usage

Chemical Properties

dark-red crystals

Uses

Precursor for the preparation of other compounds of ruthenium. Ruthenium(III) 2,4-pentanedionate is employed as a recyclable catalyst for certain organic transformations like the acetylation of phenols, alcohols, and amines under neat conditions. It is also used as a homogeneous catalyst, for example, in the hydrolysis of sodium borohydride and regiospecific tritiation of aromatic carboxylic acids. It is also used as a catalyst for enantioselective hydrogenation of acids such as aryl acrylic acid and aryl propenic acid.

Purification Methods

Purify the complex by recrystallisation from *benzene. [Wilkinson J Am Chem Soc 74 6146 1952, Beilstein 1 IV 3677.]

InChI:InChI=1/3C5H8O2.Ru/c3*1-4(6)3-5(2)7;/h3*3,6H,1-2H3;/q;;;+3/p-3/b3*4-3-;

Upstream product

• 14898-67-0 ruthenium trichloride hydrate 
• 123-54-6 acetylacetone 
• 14898-67-0 ruthenium(III) chloride trihydrate 
• 31817-84-2 aquachlororuthenium(III) 
• 14898-67-0 ruthenium trichloride hydrate 
• 26567-75-9 acetylacetone enol 
• 87-69-4 L-Tartaric acid 
• 298-14-6 potassium hydrogencarbonate 
• 289907-30-8 {RuBr₃(Me₂SO)3} 
• 10049-08-8 ruthenium(III)chloride 
• 15435-71-9 sodium acetylacetonate 
• 19393-11-4 potassium acetylacetonate 
• 780758-95-4 [Ru(acac)₂(CH₃CN)₂]PF₆ 
• 51439-47-5 1,2-diacetyl-1,2-dibenzoylethane 

Downstream Products

• 15243-33-1 dodecacarbonyl-triangulo-triruthenium 
• 123-54-6 acetylacetone 
• 16406-48-7 ruthenium pentacarbonyl 
• 117227-79-9 Ru(NPhsal)3 
• 1287-13-4 bis(η⁵-cyclopentadienyl)ruthenium 
• 27599-25-3 dihydridotetrakis(triphenylphosphine)ruthenium 
• 76790-97-1 (3-formylpentane-2,4-dionato)bis(pentane-2,4-dionato)ruthenium(III) 
• 851286-47-0 bis(benzonitrile)bis(acetylacetonato)ruthenium(II) 
• 115565-11-2 dihydridocarbonyl(1,1,1-tris(diphenylphosphinomethyl)ethane)ruthenium(II) complex 

Relevant articles and documents

A new coordination mode of the photometric reagent glyoxalbis(2- hydroxyanil) (H2gbha): Bis-bidentate bridging by gbha2- in the redox series {(μ-gbha)[Ru(acac)2]2}n (n = -2, -1, 0, +1, +2), including a radical-bridged diruthenium(III) and a RuIII/RuIV intermediate

The bis-bidentate bridging function of gbha2- with N,O -/N,O- coordination was observed for the first time in the complex (μ-gbha)[RuIII(acac)2]2 (1). Density functional theory calculations of 1 yield a triplet ground state with a large (ΔE > 6000 cm-1) singlet-triplet gap. Intermolecular antiferromagnetic coupling was observed (J ≈ -5.3 cm-1) for the solid. Complex 1 undergoes two one-electron reduction and two one-electron oxidation steps; the five redox forms {(μ-gbha)[Ru(acac)2] 2}n (n = -2, -1, 0, +1, +2) were characterized by UV-vis-NIR spectroelectrochemistry (NIR = near infrared). The paramagnetic intermediates were also investigated by electron paramagnetic resonance (EPR) spectroscopy. The monoanion with a comproportionation constant Kc of 2.7 × 108 does not exhibit an NIR band for a Ru III/RuII mixed-valent situation; it is best described as a 1,4-diazabutadiene radical anion containing ligand gbha?3-, which binds two ruthenium(III) centers. A RuIII-type EPR spectrum with g1 = 2.27, g2 = 2.21, and g3 = 1.73 is observed as a result of antiferromagnetic coupling between one RuIII and the ligand radical. The EPR-active monocation (Kc = 1.7 × 106) exhibits a broad (Δν1/2 = 2600 cm -1) intervalence charge-transfer band at 1800 nm, indicating a valence-averaged (Ru3.5)2 formulation (class III) with a tendency toward class II (borderline situation).

Study of temperature dependencies of saturated vapor pressure of ruthenium(III) beta-diketonate derivatives

Complexes of ruthenium(III) with the following beta-diketones: 2,4-pentanedione (Ru(acac)3), 1,1,1-trifluoro-2,4-pentanedione (Ru(tfac)3), 2,2,6,6-tetramethyl-3,5-heptanedione (Ru(thd) 3), 2,2,6,6-tetramethyl-4-fluoro-3,5-

Volatile β-diketonato complexes of ruthenium, palladium and platinum preparation and thermal characterization

Ruthenium, palladium and platinum complexes of 2,2,6,6-tetramethyl-3,5-heptanedione (thd) and ruthenium tris acetylacetonate (acac) were synthetized and studied with TG, DTA, DSC and MS methods. Thermal properties of ruthenocene were also studied. The pla

Kinetics and Mechanisms of Ligand Exchange Reactions of Tris(acetylacetonato)-chromium(III), cobalt(III), ruthenium(III), and -rhodium(III) in Acetylacetone

Tris(acetylacetonato)-cobalt(III), -chromium(III), -ruthenium(III), and -rhodium(III) undergo ligand exchange in acetylacetone(Hacac) at 85-190 deg C without decomposition of the complexes.The exchange rate is proportional to the complex concentration, and the first-order rate constant k0 decreases in the sequence Co(III) above Cr(III) above Ru(III) above Rh(III), k0/10-5 s-1 being 2.4 (93 deg C), 5.6 (117 deg C), 9.5 (158 deg C), and 2.4 (185 deg C), respectively.The activation enthalpies and entropies and deuterium isotope effect on k0 are significantly different between the Co(III) and the Cr(III), Ru(III) and Rh(III) complexes.An intermediate involving an one-ended acetylacetonate and a solvent molecule(Hacac) is concluded to be formed in the rate-determining step.The SN1 and the SN2 mechanism are assigned to the exchange reactions of the Co(III) complex and the others, respectively, for the rate-determining steps.

RUTHENIUM PURE QUADRUPOLE RESONANCE SPECTROSCOPY

The unique chemistry of ruthenium and consequent potential importance of the quadrupole coupling constants and asymmetry parameters of 99Ru and 101Ru has prompted us to initiate an apparently original investigation of the pure nuclear quadrupole resonance spectroscopy of these two isotopes.A means for prediction of the expected resonance frequencies based on Mossbauer data is given and detailed circuit diagrams of a spectrometer which has been constructed primarly for ruthenium studies are presented.Preliminary searches carried out for ruthenium tris-acetylacetonate and bis-ruthenium tetroxide have so far failed to yield signals.Possible explanation for this are discussed and the value of continuing the work defended.

Charged, but found not guilty : Innocence of the suspect bridging ligands [RO(O)CNNC(O)OR]2- = L2- in [(acac) 2Ru(μ-L)Ru(acac)2]n, n = +,0,-,2-

Neutral diastereoisomeric diruthenium(III) complexes, meso- and rac-[(acac)2Ru(μ-adc-OR)Ru(acac)2] (acac- = 2,4-pentanedionato and adc-OR2- = dialkylazodicarboxylato = [RO(O)CNNC(O)OR]2-, R = tert-butyl or isopropyl), were obtained from electron transfer reactions between Ru(acac)2(CH3CN) 2 and azodicarboxylic acid dialkyl esters (adc-OR). The meso isomer 3 with R = isopropyl was structurally characterized, revealing two deprotonated and N-N coupled carbamate functions in a reduced dianionic bridge with d N-N = 1.440(5) A. A rather short distance of 4.764 A has been determined between the two oxidized, antiferromagnetically coupled Ru III centers. The rac isomer 4 with R = isopropyl exhibited stronger antiferromagnetic coupling. While the oxidation of the neutral compounds was fully reversible only for 3 and 4, two well-separated (108 c 10) reversible one-electron reduction steps produced monoanionic intermediates 1--4- with intense (ε ≈ 3000 M-1 cm-1), broad (δv1/2 ≈ 3000 cm-1) absorptions in the near-infrared (NIR) region around 2000 nm. The absence of electron paramagnetic resonance (EPR) signals even at 4 K favors the mixed-valent formulation RuII(adc-OR 2-)RuIII with innocently behaving bridging ligands over the radical-bridged alternative RuII(adc-OR?-)Ru II, a view which is supported by the metal-centered spin as calculated by density functional theory (DFT) for the methyl ester model system. The second reduction of the complexes causes the NIR absorption to disappear completely, the EPR silent oxidized forms 3+ and 4+, calculated with asymmetrical spin distribution, do not exhibit near infrared (NIR) activity. The series of azo-bridged diruthenium complex redox systems [(acac)2Ru(μ-adc-R)Ru(acac)2]n (n = +,0,-,2-), [(bpy)2Ru(μ-adc-R)Ru(bpy)2]k (k = 4+,3+,2+,0,2-), and [(acac)2Ru(μ-dih-R)Ru(acac)2] m (m = 2+,+,0,-,2-; dih-R2- = 1,2-diiminoacylhydrazido(2-) ) is being compared in terms of electronic structure and identity of the odd-electron intermediates, revealing the dichotomy of innocent vs noninnocent behavior.

Method for synthesizing ruthenium (III) acetylacetonate (by machine translation)

A method for synthesizing the ruthenium (III) acetylacetonate, which comprises the following steps of: a, dissolving the hydrated ruthenium trichloride in water, reacting with the base to obtain the ruthenium salt solution; b, reacting the ruthenium salt solution with the acetyl acetonate solution; b, purifying the ruthenium salt solution and the acetyl acetonate solution under heating conditions; and obtaining the total reaction equation of the ruthenium (III) chloride solution and the chloride ion content _AOMARKENCODTX0AO_ 80 - 90% 50 ppm. In the formula, HL is a strong acid of a non-coordinating anion acac is acetyl acetonate. M is Na or K; the content of impurity chloride ions is reduced while the high yield of ruthenium (III) acetylacetonate is guaranteed, the product quality is improved, and industrial production is facilitated. (by machine translation)

Organoruthenium compound for chemical vapor deposition raw material and production method for the organoruthenium compound

The present invention is an organoruthenium compound for a chemical vapor deposition raw material, including dodecacarbonyl triruthenium represented by the following chemical formula, wherein the iron (Fe) concentration is 1 ppm or less. The DCR in the present invention can be produced by obtaining crude DCR by directly carbonylating ruthenium through allowing a ruthenium salt and carbon monoxide to react with each other and by purifying the crude DCR by a sublimation method. In the synthesis step, the concentration of Fe in the obtained crude DCR is preferably set at 10 ppm or less.