Category: 1273-73-0

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called The electrochemical cleavage of carbon-halogen bonds of haloferrocenes, published in 1985-11-15, which mentions a compound: 1273-73-0, Name is Bromoferrocene, Molecular C10BrFe, Safety of Bromoferrocene.

Cyclic voltammetric studies for chloroferrocene  [1273-74-1], bromoferrocene  [1273-73-0], and iodoferrocene  [1273-76-3] in ethylene glycol di-Me ether at -45° were reported. The cyclic voltammogram and the absorption spectrum of the solution after the exhaustive controlled-potential reduction for the reduction step of haloferrocene show a quant. formation of ferrocene and a cleavage of the C-halogen bond of haloferrocene.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Bromoferrocene( cas:1273-73-0 ) is researched.Application of 1273-73-0.Pauly, Anja C.; Varnado, C. Daniel Jr.; Bielawski, Christopher W.; Theato, Patrick published the article 《Electrochromic Poly(acetylene)s with Switchable Visible/Near-IR Absorption Characteristics》 about this compound( cas:1273-73-0 ) in Macromolecular Rapid Communications. Keywords: electrochromic polyacetylene switchable visible near IR absorption; conjugated polymers; electrochromism; ferrocene; functionalization of polymers. Let’s learn more about this compound (cas:1273-73-0).

Ferrocene is incorporated into a poly(acetylene) derivative via the postpolymn. amidation of a polymer precursor bearing pentafluorophenyl ester-leaving groups with aminoferrocene. While the neutral polymer exhibits a strong absorbance at 553 nm due to its conjugated backbone, oxidation of the ferrocene moieties with silver tetrafluoroborate causes the material to absorb in the near-IR (λmax ≈1215 nm). Subsequent reduction of the oxidized polymer with decamethylferrocene restores the initial absorbance profile, demonstrating that the material features switchable visible/near-IR absorption characteristics.

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Product Details of 1273-73-0. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electronic effects in the ferrocene ring system by proton magnetic resonance spectroscopy.

Results of a proton magnetic resonance study of the chem. shifts of ring protons of representative monosubstituted ferrocene compounds are reported. The substituents cover a span from strongly electron-donating groups to strongly electron-withdrawing. Some relations appear to exist between the ring-proton chem. shifts in these compounds and those reported for the corresponding monosubstituted benzene compounds The chem. shifts recorded were precisely measured. As such, they serve to revise the data reported while this work was in progress. 15 references.

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Quality Control of 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 Probing the tolerance of cucurbit[7]uril inclusion complexes to small structural changes in the guest. Author is Yi, Song; Li, Wei; Nieto, Daniel; Cuadrado, Isabel; Kaifer, Angel E..

The binding properties of the cucurbit[7]uril host with three structurally related ferrocene-containing guests, ferrocenyltrimethylammonium, ferrocenylmethyltrimethylammonium and ferrocenylethyltrimethylammonium, were studied using 1H NMR spectroscopy, mass spectrometry, voltammetry and computational methods. The exptl. and computational data indicate that the stability of the cucurbit[7]uril inclusion complexes is relatively insensitive to the number of methylenes connecting the trimethylammonium and the ferrocenyl groups, although some of their properties are affected in significant ways.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Ates, M. Nurullah; Allen, Chris J.; Mukerjee, Sanjeev; Abraham, K. M. researched the compound: Bromoferrocene( cas:1273-73-0 ).SDS of cas: 1273-73-0.They published the article 《Electronic effects of substituents on redox shuttles for overcharge protection of Li-ion batteries》 about this compound( cas:1273-73-0 ) in Journal of the Electrochemical Society. Keywords: lithium ion battery overcharge protection ferrocene derivative redox shuttle. We’ll tell you more about this compound (cas:1273-73-0).

The redox behavior and kinetic parameters of five ferrocene derivatives were investigated in 1M LiPF6 in 50:50 volume% ethylene carbonate:Et Me carbonate, a typical electrolyte used in lithium-ion batteries. Using cyclic voltammetry and rotating disk electrode voltammetry techniques, the effect of electron donating and withdrawing substituents on each derivative was evaluated from the view point of the Hammett substituent constant We found that electrochem. rate constants of the ferrocene derivatives can be related to the Hammett equation which gives an accurate approximation for predicting the oxidation potential of redox shuttles when changes are desired in their electron donating and electron withdrawing properties by means of functional group substitution. Our results show that the exchange c.d. and reaction rate for oxidation decrease as the electron withdrawing property of the substituent increases. It is also shown that electron donating and electron withdrawing property of a substituent affect the exchange c.d. and electrochem. oxidation reaction rate obeying a trend opposite to that of the Hammett substituent constants (σ). The correlations found here are expected to improve the ability to systematically design chem. overcharge protection reagents through judicious substitution of functional groups on redox shuttles.

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Yoon, Heejung; Lee, Yong-Min; Wu, Xiujuan; Cho, Kyung-Bin; Sarangi, Ritimukta; Nam, Wonwoo; Fukuzumi, Shunichi researched the compound: Bromoferrocene( cas:1273-73-0 ).Application In Synthesis of Bromoferrocene.They published the article 《Enhanced Electron-Transfer Reactivity of Nonheme Manganese(IV)-Oxo Complexes by Binding Scandium Ions》 about this compound( cas:1273-73-0 ) in Journal of the American Chemical Society. Keywords: enhanced electron transfer reactivity; nonheme manganese oxo complex binding scandium ions. We’ll tell you more about this compound (cas:1273-73-0).

One and two scandium ions (Sc3+) are bound strongly to nonheme manganese(IV)-oxo complexes, [(N4Py)MnIV(O)]2+ (N4Py = N,N-bis(2-pyridylmethyl)-N-bis(2-pyridyl)methylamine) and [(Bn-TPEN)MnIV(O)]2+ (Bn-TPEN = N-benzyl-N,N’,N’-tris(2-pyridylmethyl)-1,2-diaminoethane), to form MnIV(O)-(Sc3+)1 and MnIV(O)-(Sc3+)2 complexes, resp. The binding of Sc3+ ions to the MnIV(O) complexes was examined by spectroscopic methods as well as by DFT calculations The one-electron reduction potentials of the MnIV(O) complexes were markedly shifted to a pos. direction by binding of Sc3+ ions. Accordingly, rates of the electron transfer reactions of the MnIV(O) complexes were enhanced as much as 107-fold by binding of two Sc3+ ions. The driving force dependence of electron transfer from various electron donors to the MnIV(O) and MnIV(O)-(Sc3+)2 complexes was examined and analyzed in light of the Marcus theory of electron transfer to determine the reorganization energies of electron transfer. The smaller reorganization energies and much more pos. reduction potentials of the MnIV(O)-(Sc3+)2 complexes resulted in remarkable enhancement of the electron-transfer reactivity of the MnIV(O) complexes. Such a dramatic enhancement of the electron-transfer reactivity of the MnIV(O) complexes by binding of Sc3+ ions resulted in the change of mechanism in the sulfoxidation of thioanisoles by MnIV(O) complexes from a direct oxygen atom transfer pathway without metal ion binding to an electron-transfer pathway with binding of Sc3+ ions.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Synthesis and isomerization of 4-hydroxy-4-methyl-3-hepten-6-yn-2-yl-cyclopentadienylmanganese tricarbonyl》. Authors are Anisimov, K. N.; Kolobova, N. E.; Magomedov, G. K. I..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Safety of Bromoferrocene. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

cf. CA 61, 13336f. Propargyl bromide added in Et2O to Mg activated with HgCl2 gave a solution of the Grignard reagent which with 2-penten-4-on-2-ylcyclopentadienylmanganese tricarbonyl in 3 h. refluxing gave 81% I, b0.007 85-6°, n20D 1.5945, d20 1.2936; ir spectrum and uv spectrum shown. Heated with KHSO4 in vacuo to 100-20°, I gave 50% yellow 4-methyl-2,4-heptadien-6-on-2-ylcyclopentadienylmanganese tricarbonyl, b0.007 95-6°, 1.6112, 1.3030, also formed from I by heating in EtOH with HgSO4; ir spectrum shown. The ketone was unstable in air, but gave a red 2,4-dinitrophenylhydrazone, m. 156°.

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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 Electrochemical Parameterization in Sandwich Complexes of the First Row Transition Metals, published in 1996-02-14, which mentions a compound: 1273-73-0, mainly applied to ligand electrochem parameter sandwich complex; pi ligand electrochem parameter sandwich complex; formal potential ligand electrochem parameter; transition metal sandwich complex formal potential, Electric Literature of C10BrFe.

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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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Chemical Physics called Measurements of structural and quadrupole coupling parameters for bromoferrocene using microwave spectroscopy, Author is Drouin, Brian J.; Lavaty, T. Greg; Cassak, Paul A.; Kukolich, Stephen G., which mentions a compound: 1273-73-0, SMILESS is Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25, Molecular C10BrFe, Product Details of 1273-73-0.

Rotational spectra for two isotopomers of bromoferrocene were measured using pulsed-beam Fourier transform microwave spectroscopy. Transitions were observed for the 79Br and 81Br isotopomers in the 5-9 GHz range. Rotational constants and the quadrupole coupling tensors were obtained. The rotational constants and quadrupole coupling parameters for 79Br are A = 1272.110(1), B = 516.1125(2), C = 441.3775(2), eQqaa=267.16(3), eQqab=-409.81(4), and eQqbb=21.49(4), and those for 81Br are A = 1271.045(4), B = 510.0079(2), C = 436.7687(2), eQqaa=225.40(6), eQqab=-341.62(4), and eQqbb=15.65(4). The measured rotational constants were used to determine the following structural parameters of bromoferrocene: r(Fe-(C5H5))=1.63(2), r(Fe-(C5H4Br))=1.67(3), r(C-Br)=1.875(11), and r(C-C)=1.433(1) A. The values of the quadrupole coupling parameters in the principal quadrupole axis systems and the C-Br bond axis systems are compared with similarly derived parameters for chloroferrocene, chlorobenzene, and bromobenzene. Previous data for chloroferrocene was reanalyzed to obtain refined quadrupole parameters.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Ferrocenylboronic and 1,1′-ferrocenylenediboronic acids and their reactions》. Authors are Nesmeyanov, A. N.; Sazonova, V. A.; Drozd, V. N..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Category: thiazolidine. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

The reactions were run under N. To 92 g. (BuO)3B in Et2O was added with Dry Ice cooling an ethereal solution of ferrocenyl-Li prepared from 17.6 g. ferrocene by treatment with BuLli (from 39 g. BuCl and 7.6 g. Li). The mixture was allowed to come to room temperature; on the following day it was treated with aqueous H2SO4 and the organic layer extracted with aqueous KOH. The alk. extracts on acidification gave first 2.9 g. 1,1′-ferrocenylenediboronic acid (I) (total yield 13%), decomposing at 180°, then ferrocenylboronic acid (II), 26% yield, m. 1438°. The latter refluxed with aqueous ZnCl2 gave ferrocene; the diboronic acid is hydrolyzed similarly. Treatment of II with hot aqueous acetone solution of HgCl2 gave 76% yellow ferrocenylmercuric chloride, decompose 192-4° (from xylene). Similarly aqueous CuCl2 gave 84% chloroferrocene, m. 59-60° (from EtOH). CuBr2 gave 80% bromoferrocene, m. 32-3°. I and aqueous CuCl2 gave 1,1′-dichloroferrocene, m. 75-7° (from EtOH); CuBr2 gave 76% 1,1′-dibromoferrocene, m. 50-1° (from EtOH). Treatment of II with ammoniacal solution of Ag2O gave metallic Ag, and extraction with Et2O gave 52% diferrocenyl, decomposing 230°, along with 31% ferrocene. Diferrocenyl is sparingly soluble in petr. ether, soluble in MePh, C6H6, dioxane, and tetrahydrofuran.

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