Category: 1273-73-0

Related Products of 1273-73-0. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electron-transfer properties of a nonheme manganese(IV)-oxo complex acting as a stronger one-electron oxidant than the iron(IV)-oxo analogue. Author is Yoon, Heejung; Morimoto, Yuma; Lee, Yong-Min; Nam, Wonwoo; Fukuzumi, Shunichi.

Electron-transfer properties of a nonheme Mn(iv)-oxo complex, [(Bn-TPEN)MnIV(O)]2+, reveals that Mn(iv)-oxo complex acts as a stronger 1-electron oxidant than the Fe(iv)-oxo analog. As a result, an electron transfer process in N-dealkylation was detected by a transient radical cation intermediate, para-Me-DMA√+, in the oxidation of para-Me-DMA by [(Bn-TPEN)MnIV(O)]2+.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Application In Synthesis of Bromoferrocene. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Efficient Two-Electron Reduction of Dioxygen to Hydrogen Peroxide with One-Electron Reductants with a Small Overpotential Catalyzed by a Cobalt Chlorin Complex. Author is Mase, Kentaro; Ohkubo, Kei; Fukuzumi, Shunichi.

A Co chlorin complex (CoII(Ch)) efficiently and selectively catalyzed two-electron reduction of dioxygen (O2) by 1-electron reductants (ferrocene derivatives) to produce H2O2 (H2O2) in the presence of HClO4 (HClO4) in benzonitrile (PhCN) at 298 K. The catalytic reactivity of CoII(Ch) was much higher than that of a Co porphyrin complex (CoII(OEP), OEP2- = octaethylporphyrin dianion), which is a typical porphyrinoid complex. The two-electron reduction of O2 by 1,1′-dibromoferrocene (Br2Fc) was catalyzed by CoII(Ch), whereas virtually no reduction of O2 occurred with CoII(OEP). CoII(Ch) is more stable than CoII(OEP), where the catalytic turnover number (TON) of the two-electron reduction of O2 catalyzed by CoII(Ch) exceeded 30000. The detailed kinetic studies revealed that the rate-determining step in the catalytic cycle is the proton-coupled electron transfer reduction of O2 with the protonated CoII(Ch) ([CoII(ChH)]+) that is produced by facile electron-transfer reduction of [CoIII(ChH)]2+ by ferrocene derivative in the presence of HClO4. The 1-electron-reduction potential of [CoIII(Ch)]+ was pos. shifted from 0.37 V (vs. SCE) to 0.48 V by the addition of HClO4 due to the protonation of [CoIII(Ch)]+. Such a pos. shift of [CoIII(Ch)]+ by protonation resulted in enhancement of the catalytic reactivity of [CoIII(ChH)]2+ for the two-electron reduction of O2 with a lower overpotential as compared with that of [CoIII(OEP)]+.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Application In Synthesis of Bromoferrocene. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electrochemical Parameterization in Sandwich Complexes of the First Row Transition Metals. Author is Lu, Shuangxing; Strelets, Vladimir V.; Ryan, Matthew F.; Pietro, William J.; Lever, A. B. P..

Applying the ligand electrochem. parameter approach to sandwich complexes and standardizing to the FeIII/FeII couple, the authors obtained EL(L) values for over 200 π-ligands. Linear correlations exist between formal potential (E°) and the ∑EL(L) for each metal couple. In this fashion, the authors report correlation data for many first row transition metal couples. The correlations between the EL(L) of the substituted π-ligand and the Hammett substituent constants (σp) are also explored.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Bromoferrocene(SMILESS: Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25,cas:1273-73-0) is researched.Synthetic Route of C9H9NO4S. The article 《Indirectly Connected Bis(N-Heterocyclic Carbene) Bimetallic Complexes: Dependence of Metal-Metal Electronic Coupling on Linker Geometry》 in relation to this compound, is published in Organometallics. Let’s take a look at the latest research on this compound (cas:1273-73-0).

Reaction of 1,1′,3,3′-tetra(tert-amyl)benzobis(imidazolylidene) (1) with 2 equivalent of FcN3 or FcNCS afforded bisadducts [(FcN3)2(1)] (2) or [(FcNCS)2(1)] (3), resp. (Fc = ferrocene). These represent the first examples of complexes comprising metals indirectly connected to the carbene atoms of N-heterocyclic carbenes (NHCs) via their ligand sets. Cyclic and differential pulse voltammetry indicated that bis(NHC) 1 facilitated significant electronic coupling between ferrocene centers in 2 (ΔE = 140 mV), but not in 3. The different degrees of electronic interaction are due to geometric factors: the triazene linker in 2 is nearly coplanar with the bis(NHC) scaffold, whereas the isothiocyanate linker is orthogonal, as determined by x-ray crystallog. Employing this “”indirect connection”” strategy should enable tuning of metal-metal interactions by simple alteration the organic linker between NHC and MLn fragments rather than complete redesign thereof. Given that NHC-reactive azide or isothiocyanate groups can be incorporated into both organic and inorganic compounds, this approach is envisioned to facilitate access to otherwise inaccessible catalysts and materials.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Stochastic detection and characterisation of individual ferrocene derivative tagged graphene nanoplatelets.Recommanded Product: Bromoferrocene.

Graphene nanoplatelets (GNPs) are ‘tagged’ with 1-(biphen-4-yl)ferrocene. Chronoamperometry is then utilized to observe single particle impacts when GNPs suspended in solution collide with a carbon fiber micro wire electrode held at an oxidizing potential, resulting in current/time transient “”spikes””. The impacts are associated with two types of charge transfer: Faradaic due to oxidation of the ‘tag’ and capacitative due to disruption of the double layer. Anal. of the spikes suggests approx. monolayer coverage of 1-(biphen-4-yl)ferrocene on the GNP surfaces, with a surface coverage of (2.2 ± 0.3) × 10-10 mol cm-2. In contrast non-derivatized ferrocene does not exhibit any significant adsorption on the GNP material.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Monohalogenated ferrocenes C5H5FeC5H4X (X = Cl, Br and I) and a second polymorph of C5H5FeC5H4I, the main research direction is crystal structure monohalogenated ferrocene polymorph; mol structure monohalogenated ferrocene polymorph; lattice energy iodoferrocene polymorph.Application of 1273-73-0.

The structures of the three title monosubstituted ferrocenes, 1-chloroferrocene, [Fe(C5H5)(C5H4Cl)], (I), 1-bromoferrocene, [Fe(C5H5)(C5H4Br)], (II), and 1-iodoferrocene, [Fe(C5H5)(C5H4I)], (III), were determined at 100 K. The chloro- and bromoferrocenes are isomorphous crystals. The new triclinic polymorph [space group P1̅, Z = 4, T = 100 K] of iodoferrocene, (III), and the previously reported monoclinic polymorph of (III) were obtained by crystallization from EtOH solutions at 253 and 303 K, resp. All four phases contain two independent mols. in the unit cell. The relative orientations of the cyclopentadienyl (Cp) rings are eclipsed and staggered in the independent mols. of (I) and (II), while (III) demonstrates only an eclipsed conformation. The triclinic and monoclinic polymorphs of (III) contain nonbonded intermol. I···I contacts, causing different packing modes. In the triclinic form of (III), the mols. are arranged in zigzag tetramers, while in the monoclinic form the mols. are arranged in zigzag chains along the a axis. Crystallog. data for (III), along with the computed lattice energies of the two polymorphs, suggest that the monoclinic form is more stable.

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Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Recommanded Product: Bromoferrocene. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Dye Regeneration Kinetics in Dye-Sensitized Solar Cells. Author is Daeneke, Torben; Mozer, Attila J.; Uemura, Yu; Makuta, Satoshi; Fekete, Monika; Tachibana, Yasuhiro; Koumura, Nagatoshi; Bach, Udo; Spiccia, Leone.

The ideal driving force for dye regeneration is an important parameter for the design of efficient dye-sensitized solar cells. Here, nanosecond laser transient absorption spectroscopy was used to measure the rates of regeneration of six organic carbazole-based dyes by nine ferrocene derivatives whose redox potentials vary by 0.85 V, resulting in 54 different driving-force conditions. The reaction follows the behavior expected for the Marcus normal region for driving forces below 29 kJ mol-1 (ΔE = 0.30 V). Driving forces of 29-101 kJ mol-1 (ΔE = 0.30-1.05 V) resulted in similar reaction rates, indicating that dye regeneration is diffusion controlled. Quant. dye regeneration (theor. regeneration yield 99.9%) can be achieved with a driving force of 20-25 kJ mol-1 (ΔE ≈ 0.20-0.25 V).

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Crystal and molecular structure of the complex boron triferrocenyl-pyridine, published in 1987-12-31, which mentions a compound: 1273-73-0, mainly applied to crystal structure trisferrocenylboron pyridine complex; mol structure trisferrocenylboron pyridine complex; ferrocenylboron pyridine complex structure, COA of Formula: C10BrFe.

X-ray study of the title tris(ferrocenyl)boron pyridine complex confirms that in the solid state its structure is similar to that inferred from chem. and spectroscopic evidence. The B atom is coordinated by 3 ferrocenyl groups and a pyridine ring in a distorted tetrahedral array. The mol. has a nearly 3-fold axis normal to the plane defined by the ferrocenyl groups. The B-N distance of 1.656 (5) Å is larger than that obtained for other compounds studied. The pyridine and cyclopentadienyl rings are planar. The H atoms of the cyclopentaidenyl rings are displaced significantly toward their corresponding Fe atom. The mols. in the crystal are packed at normal van der Waals distances. No unusually short intermol. contacts are noted.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Synthesis of diferrocenylglyoxime and some of its transition-metal complexes, the main research direction is ferrocenylglyoxime preparation reaction transition metal; glyoxime diferrocenyl preparation reaction; transition metal complex diferrocenylglyoxime.Formula: C10BrFe.

Diferrocenylglyoxime (I) was prepared by treating mono- or dilithioferrocene with anti-dichloroglyoxime. Characterization of this novel vic-dioxime and some of its transition metal complexes is described. E.g., treating NiCl2 with I in EtOH, followed by NaOH in EtOH, gave 60% Ni complex II (L = ferrocenyl).

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Recommanded Product: Bromoferrocene. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electron- and Hydride-Transfer Reactivity of an Isolable Manganese(V)-Oxo Complex. Author is Fukuzumi, Shunichi; Kotani, Hiroaki; Prokop, Katharine A.; Goldberg, David P..

The electron-transfer and hydride-transfer properties of an isolated manganese(V)-oxo complex, (TBP8Cz)MnV(O) (1) (TBP8Cz = octa-tert-corrolazinato) were determined by spectroscopic and kinetic methods. The manganese(V)-oxo complex 1 reacts rapidly with a series of ferrocene derivatives ([Fe(C5H4Me)2], [Fe(C5HMe4)2], and [Fe(C5Me5)2] = Fc*) to give the direct formation of [(TBP8Cz)MnIII(OH)]- ([2-OH]-), a two-electron-reduced product. The stoichiometry of these electron-transfer reactions was found to be (Fc derivative)/1 = 2:1 by spectral titration The rate constants of electron transfer from ferrocene derivatives to 1 at room temperature in benzonitrile were obtained, and the successful application of Marcus theory allowed for the determination of the reorganization energies (λ) of electron transfer. The λ values of electron transfer from the ferrocene derivatives to 1 are lower than those reported for a manganese(IV)-oxo porphyrin. The presumed one-electron-reduced intermediate, a MnIV complex, was not observed during the reduction of 1. However, a MnIV complex was successfully generated via one-electron oxidation of the MnIII precursor complex 2 to give [(TBP8Cz)MnIV]+ (3). Complex 3 exhibits a characteristic absorption band at λmax = 722 nm and an EPR spectrum at 15 K with g’max = 4.68, g’mid = 3.28, and g’min = 1.94, with well-resolved 55Mn hyperfine coupling, indicative of a d3 MnIVS = 3/2 ground state. Although electron transfer from [Fe(C5H4Me)2] to 1 is endergonic (uphill), two-electron reduction of 1 is made possible in the presence of proton donors (e.g., CH3CO2H, CF3CH2OH, and CH3OH). In the case of CH3CO2H, saturation behavior for the rate constants of electron transfer (ket) vs. acid concentration was observed, providing insight into the critical involvement of H+ in the mechanism of electron transfer. Complex 1 was also shown to be competent to oxidize a series of dihydronicotinamide adenine dinucleotide (NADH) analogs via formal hydride transfer to produce the corresponding NAD+ analogs and [2-OH]-. The logarithms of the observed second-order rate constants of hydride transfer (kH) from NADH analogs to 1 are linearly correlated with those of hydride transfer from the same series of NADH analogs to p-chloranil.

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Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com