Category: 32717-95-6

Safety of Chloro(1,5-cyclooctadiene)copper(I) dimer. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Regioselective Transformation of O-Propargylic Arylaldoximes to Four-Membered Cyclic Nitrones by Copper-Catalyzed Skeletal Rearrangement. Author is Nakamura, Itaru; Araki, Toshiharu; Zhang, Dong; Kudo, Yu; Kwon, Eunsang; Terada, Masahiro.

(E)-O-Propargylic arylaldoximes were regioselectively converted, in the presence of copper catalysts, into their corresponding four-membered cyclic nitrones in good to excellent yields. E.g., in presence of [CuCl(cod)]2, reaction of (E)-O-propargylic arylaldoxime I gave 82% (E)-cyclic nitrone II. The reactions proceeded via a tandem [2,3]-rearrangement and 4π-electrocyclization of the N-allenylnitrone intermediate and involved cleavage of the carbon-oxygen bond.

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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

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.Havlin, Robert; McMahon, Michael; Srinivasan, Ranjani; Le, Hongbiao; Oldfield, Eric researched the compound: Chloro(1,5-cyclooctadiene)copper(I) dimer( cas:32717-95-6 ).COA of Formula: C16H16Cl2Cu2.They published the article 《Solid-State NMR and Density Functional Investigation of Carbon-13 Shielding Tensors in Metal-Olefin Complexes》 about this compound( cas:32717-95-6 ) in Journal of Physical Chemistry A. Keywords: carbon 13 shielding metal olefin complex; NMR carbon 13 shielding olefin complex; density functional NMR carbon 13 shielding. We’ll tell you more about this compound (cas:32717-95-6).

The authors determined the principal elements of the chem. shift tensors for metal-olefin complexes: [Ag(cod)2]BF4 (cod = cis,cis-cycloocta-1,5-diene), [CuCl(cod)]2, PtCl2(cod), [RhCl(cod)]2, and K[PtCl3(C2H4)] using magic-angle sample spinning and a Bayesian probability method to deduce μ, ρ in the Herzfeld-Berger equations. These principal elements also were computed by using d. functional methods with two different types of functionals and partial geometry optimization. The overall slope and R2 values between the theor. and exptl. tensor elements are good, ranging from 1.06 to 1.16 for the slope (vs. the ideal value of 1) and 0.98-0.99 for the goodness of fit parameter R2 (vs. the ideal value of 1). The use of a hybrid functional results in a slightly worse slope, an effect which is largest for the compounds with the largest paramagnetic shifts. There are no particularly good correlations between C-C bond lengths, isotropic/anisotropic shift tensor elements or computed bond orders; however, the correlation between shielding and (Mulliken) charge of ∼-120 ppm/electron is consistent with previous exptl. estimates on olefins and aromatic compounds The orientations of the shielding tensor elements in the cod complexes change in a relatively continuous manner with increases in shielding (from d10 to d8 metals), with δ33 becoming highly rotated (37.5°) from the normal to the C:C bond axis in [RhCl(cod)]2. Overall, these results indicate that d. functional methods now permit the relatively accurate reproduction of metal-ligand shielding patterns in systems whose structures are known, which should facilitate their use in probing metal-ligand geometries in systems whose structures are less certain, such as in metalloproteins.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Name: Chloro(1,5-cyclooctadiene)copper(I) dimer. 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: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Diademane and structurally related compounds. II. Catalyzed rearrangements and hydrogenations. Author is Kaufmann, Dieter; Schallner, Otto; Meyer, Lueder Ulrich; Fick, Hans Heinrich; De Meijere, Armin.

Cu and Ag compounds catalyzed the rearrangement of diademane (I) to triquinacene (II); Au and Rh compounds catalyzed the rearrangement of I to snoutene (III). Catalytic hydrogenation of I gave IV-IX; no adamantane was detected.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Solid-State NMR and Density Functional Investigation of Carbon-13 Shielding Tensors in Metal-Olefin Complexes, the main research direction is carbon 13 shielding metal olefin complex; NMR carbon 13 shielding olefin complex; density functional NMR carbon 13 shielding.Related Products of 32717-95-6.

The authors determined the principal elements of the chem. shift tensors for metal-olefin complexes: [Ag(cod)2]BF4 (cod = cis,cis-cycloocta-1,5-diene), [CuCl(cod)]2, PtCl2(cod), [RhCl(cod)]2, and K[PtCl3(C2H4)] using magic-angle sample spinning and a Bayesian probability method to deduce μ, ρ in the Herzfeld-Berger equations. These principal elements also were computed by using d. functional methods with two different types of functionals and partial geometry optimization. The overall slope and R2 values between the theor. and exptl. tensor elements are good, ranging from 1.06 to 1.16 for the slope (vs. the ideal value of 1) and 0.98-0.99 for the goodness of fit parameter R2 (vs. the ideal value of 1). The use of a hybrid functional results in a slightly worse slope, an effect which is largest for the compounds with the largest paramagnetic shifts. There are no particularly good correlations between C-C bond lengths, isotropic/anisotropic shift tensor elements or computed bond orders; however, the correlation between shielding and (Mulliken) charge of ∼-120 ppm/electron is consistent with previous exptl. estimates on olefins and aromatic compounds The orientations of the shielding tensor elements in the cod complexes change in a relatively continuous manner with increases in shielding (from d10 to d8 metals), with δ33 becoming highly rotated (37.5°) from the normal to the C:C bond axis in [RhCl(cod)]2. Overall, these results indicate that d. functional methods now permit the relatively accurate reproduction of metal-ligand shielding patterns in systems whose structures are known, which should facilitate their use in probing metal-ligand geometries in systems whose structures are less certain, such as in metalloproteins.

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Quinoxaline – Wikipedia,
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Application In Synthesis of Chloro(1,5-cyclooctadiene)copper(I) dimer. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Synthesis, structural characterization, and bonding analysis of two-coordinate copper(I) and silver(I) complexes of pyrrole-based bis(phosphinimine): new metal-pyrrole ring π-interactions. Author is Jha, Vikesh Kumar; Das, Sanghamitra; Subramaniyan, Vasudevan; Guchhait, Tapas; Dakua, Kishan Kumar; Mishra, Sabyashachi; Mani, Ganesan.

The reaction between 2,5-bis(diphenylphosphinomethyl)pyrrole and Me3SiN3 gave the new pyrrole-based bis(phosphinimine) L1H in an excellent yield. L1H reacts with [CuCl(COD)]2, AgBF4, or AgOTf to give the corresponding two-coordinate mononuclear ionic complex formulated as [M{(L1H)-κ2N,N}]+[X]- where M = Cu and Ag; X = [CuCl2], BF4 or OTf. Their single crystal x-ray diffraction studies confirmed the two-coordinate geometry formed by the chelate bonding mode of L1H. These 10-membered metalacycles exhibit planar chirality and were also characterized by spectroscopic methods. In addition, in all three structures, there exists a hitherto unknown π-interaction between the pyrrole ring atoms and metal, represented as η2-(Cα-N) in the copper(I) complex, and η3-(Cα-N-Cα’) in the silver(I) complexes. These weak interactions were supported by DFT calculations in terms of their electron densities, non-covalent interaction plots and the decrease in the aromaticity of the pyrrole ring.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about The chemistry of β-diketonate copper(I) compounds – III. The synthesis of (β-diketonate)Cu(1,5-COD) compounds, the solid state structure and disproportionation of hexafluoroacetylacetonato(1,5-cyclooctadiene)copper(I), (hfac)Cu(1,5-COD), the main research direction is crystal structure copper diketonate complex; mol structure copper diketonate complex.Category: quinoxaline.

The compounds (β-diketonate)Cu(1,5-COD) have been prepared by the reaction between [(1,5-COD)CuCl]2 and Na(β-diketonate) for β-diketonate = hexafluoroacetylacetonate (hfac), trifluoroacetylacetonate (tfac) and acetylacetonate (acac) and 1,5-COD = 1,5-cyclooctadiene. These compounds were characterized spectroscopically and (hfac)Cu(1,5-COD) was characterized, in the solid state, by single-crystal x-ray diffraction. The coordination of the copper center is best described as 3+1 with an asym. coordinated 1,5-COD ligand where the Cu-C(6):C(7) centroid and Cu-C(10):C(11) centroid distances are 1.953 and 2.418 Å, resp. The quant. disproportionation, according to the equation 2(hfac)Cu(1,5-COD) → Cu + Cu(hfac)2 + 2(1,5-COD) to produce copper metal and volatile byproducts, was observed at 200°.

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Quinoxaline – Wikipedia,
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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 32717-95-6, is researched, SMILESS is C12=C(CCC3=C4CC2)[Cu+]1534[Cl-][Cu+]678(C9=C6CCC7=C8CC9)[Cl-]5, Molecular C16H16Cl2Cu2Journal, Journal of Cluster Science called Lewis-Base Adducts of Group 11 Metal(I) Compounds. LXXV. Structural Systematics of the Binuclear Copper(I) Halide: 1,5-Cyclooctadiene (cod) 2:2 Adducts, [(cod)Cu(μ-X)2Cu(cod)], X = Cl, Br, I, Author is Kok, Juan M.; Skelton, Brian W.; White, Allan H., the main research direction is binuclear copper halide cyclooctadiene adduct preparation crystal mol structure.Quality Control of Chloro(1,5-cyclooctadiene)copper(I) dimer.

Adducts of 1,5-cyclooctadiene (cod) with the copper(I) halides, CuX (X = Cl, Br, I) of 1:1 stoichiometry are confirmed as binuclear species of [(cod)Cu(μ-X)2Cu(cod)] by single crystal x-ray studies, those for X = Cl, I being executed at low-temperature The study for X = Cl is a redetn., exposing disorder in one of the copper atom sites; a similar redetn. of [Cu(cod)2](ClO4) shows disorder in respect of one of the ligands. Bonding parameters are compared with those for other Lewis-base analogs.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

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: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Synthesis and characterization of chiral Cu(I) complexes with substituted-pyrrolidine-ligands bearing a triethoxysilyl group and preparation of heterogenized catalysts on USY-zeolites.Recommanded Product: Chloro(1,5-cyclooctadiene)copper(I) dimer.

New copper complexes [Cu(L-L)(CH3CN)]X (X = ClO4, PF6) where L-L = (S)-2-R-pyrrolidine, (S)-1-R-2-t-butylaminocarbonylpyrrolidine, (S)-1-R-2-(1-naphthylaminocarbonyl)pyrrolidine, (S)-1-R-2-(1-naphthylaminomethyl)pyrrolidine, (2S,4S)-4-amino-1-R-2-t-butylaminocarbonylpyrrolidine [R = (3-triethoxysilylpropyl)aminocarbonyl] were prepared, characterized and supported on a modified ultrastable Y-zeolite containing supermicropores by a covalent bond. The complexes anchored on the zeolite are easily recycled and show a similar catalytic activity to the free complexes in homogeneous medium for cyclopropanations of olefins.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

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 Infrared and Raman spectra of 1,5-cyclooctadiene complexes of copper(I), silver(I), gold(I), and gold(III) and the nature of the gold compounds, published in 1973, which mentions a compound: 32717-95-6, Name is Chloro(1,5-cyclooctadiene)copper(I) dimer, Molecular C16H16Cl2Cu2, Recommanded Product: 32717-95-6.

There have been several recent reports on the spectra of C2H4 and 1,5-cyclooctadiene complexes of d8 metallic ions which have shown that 2 bands in the vibrational spectrum of the olefin are sensitive to the coordinated metal. A series of d10 ions were complexed to 1,5-cyclooctadiene and a shift was found having the order Au(I) ∼ Cu(I) > Ag(I). Three distinct compounds were also formed between 1,5-cyclooctadiene and Au(III) or Au(I) and their ir spectra and suggested structures are reported.

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Quinoxaline – Wikipedia,
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Formula: C16H16Cl2Cu2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Chloro(1,5-cyclooctadiene)copper(I) dimer, is researched, Molecular C16H16Cl2Cu2, CAS is 32717-95-6, about Controlled growth of Cu and CuOx thin films from subvalent copper precursors. Author is Juergensen, Lasse; Hoell, David; Frank, Michael; Ludwig, Tim; Graf, David; Schmidt-Verma, Anna Katrin; Raauf, Aida; Gessner, Isabel; Mathur, Sanjay.

A new Cu(I) precursor, [(COD)Cu(TFB-TFEA)] (COD = 1,5-cyclooctadiene and TFB-TFEA = N-(4,4,4-trifluorobut-1-en-3-on)-6,6,6-trifluoroethylamine) with high volatility and a clean thermal decomposition pattern was tested for thermal and plasma-assisted CVD. The heteroleptic configuration based on an anionic and a chelating neutral ligand unified both reactivity and sufficient stability resulting in an intrinsic mol. control over the composition of the resulting CVD deposits. The electronic influence of the ligand on the metal site was studied by 1-dimensional and 2-dimensional NMR spectroscopy, while EI mass spectrometry revealed the ligand elimination cascade. Thermal and plasma CVD experiments demonstrated the suitability of the Cu compound for an atom-efficient (high mol.-to-material yield) deposition of Cu(0) and Cu(I) oxide films that could be converted into crystalline Cu(ii) oxide upon heat treatment at 500°.

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