Category: 1671-88-1

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: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about New reactivity of 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole: synthesis and structure of a mononuclear species, a dinuclear species, and a novel tetranuclear nickel(II) rectangle box, and magnetic properties of the dinuclear and tetranuclear complexes.Recommanded Product: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine.

Reactions of Ni(O2CMe)2·4H2O or NiCl2·6H2O, 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole (abpt) and NaN3 or KSCN in different molar ratios heated under reflux or hydrothermal conditions generate a mononuclear species with dimorphous phases, a dinuclear species incorporating an in situ deaminated [bpt-H]- ligand and a tetranuclear rectangle box incorporating an unprecedented μ:η1:η2:η1 coordination mode of the deprotonated [abpt-H]- ligand. Structural anal. reveals that a pair of [Ni2(μ1,1-N3)(μ-OAc)] motifs in [Ni4(abpt)2(abpt-H)(N3)5(O2CMe)2]·5H2O (1) are bridged by two abpt and one [abpt-H]- units into a rectangle box. [Ni2(bpt-H)2(SCN)2(H2O)2]·2H2O (2) is a neutral centrosym. dinuclear NiII complex doubly bridged by abpt ligands. The complex [Ni(abpt)2(N3)2] (3) is a neutral centrosym. mononuclear NiII complex and crystallizes in polymorphous phases, showing an interesting example of temperature-induced polymorphism. Variable-temperature magnetic susceptibility measurements reveal that the ferromagnetic interaction via the (μ1,1-N3)2(μ-OAc) and (μ1,1-N3)(μ1,1-NHabpt-H)(μ-OAc) bridges slightly dominates over the antiferromagnetic interaction via the abpt bridges, therefore indicative of an overall ferromagnetic coupling between NiII centers in 1, and a moderate antiferromagnetic interaction occurs in 2.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 1671-88-1, is researched, Molecular C12H10N6, about trans-Bis[4-amino-3,5-bis(2-pyridyl)-4H-1,2,4-triazole-κ2N1,N5]bis(nitrato-κO)copper(II), the main research direction is copper aminopyridyltriazole nitrato preparation crystal structure; mol structure copper aminopyridyltriazole nitrato.COA of Formula: C12H10N6.

Crystals of the title compound are triclinic, space group P1̅, with a 6.940(1), b 9.319(2), c 10.765(2) Å, α 99.36(1), β 94.86(2), γ 106.27(2)°; Z = 1, dc = 1.688, dm = 1.69(1); R = 0.046, Rw(F2) = 0.078 for 3102 reflections. The structure consists of neutral mononuclear mols. held together by an extensive three-dimensional network of N-H···O H bonds, C-H···O interactions and face-to-face π-π interactions. The CuII atom, which lies at a center of inversion, has a distorted octahedral geometry, where the equatorial plane is composed of four N atoms belonging to two bidentate 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole ligands, and the axial positions are occupied by two O atoms of two monodentate nitrate anions.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 1671-88-1, is researched, Molecular C12H10N6, about Corrosion inhibition of carbon steel in aromatic liquid extraction by triazole derivatives, the main research direction is carbon steel corrosion inhibition pyridyl triazole derivative solvent extraction.SDS of cas: 1671-88-1.

The inhibition action of triazoles on the corrosion of carbon steel in aromatic liquid extraction is studied through weight loss, potentiodynamic polarization techniques, and SEM. These compounds are very good corrosion inhibitors in both liquid and vapor phase of the aromatic liquid extraction Potentiodynamic polarization studies clearly reveal the type of inhibitor. The adsorption of these inhibitors on the carbon steel surface obeys Langmuir adsorption isotherm. The adsorption leads to the formation of a protective film, which grows, with increasing exposure time. The comparative study of corrosion inhibition of triazole derivatives indicates that the efficiency of the 4-aminotriazole (2-PAT) is greater than that of the 4-H-triazole (2-PHT).

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Electric Literature of C12H10N6. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about Coordinating behaviour of dithiocarbamate group. Synthesis and characterization of new dithiocarbamates derived from 4-amino-3,5-bis(pyridine-2-yl)-1,2,4-triazole and its complexes with transition metals. Author is Tarique, Mohammad; Aslam, Mohammad.

Some new first row transition metal complexes of types ML2 {M = Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)} and M’L3 {M’ = Cr(III) and Fe(III)} with dithiocarbamate ligand derived from 4-amino-3,5-bis(pyridine-2-yl)-1,2,4-triazole have been prepared by the replacement reaction. These complexes have been characterized by elemental anal., conductivity measurements and IR spectral studies. All the complexes were non-electrolyte in nature. IR spectral data of these complexes showed the bidentate behavior of ligand and metals were tetra and hexa-coordinated in ML2 and M’L3 type of complexes resp.

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Formula: C12H10N6. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about Spin crossover in six-coordinate [Fe(L)2(NCX)2] compounds with L = DPQ = 2,3-bis-(2′-pyridyl)quinoxaline, ABPT = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole and X = S, Se: synthesis, magnetic properties and single crystal studies. Author is Moliner, Nicolas; Munoz, M. Carmen; Van Koningsbruggen, Petra J.; Real, Jose Antonio.

The Fe(II) compounds [Fe(DPQ)2(NCS)2]·COMe2 (DPQ = 2,3-bis-(2′-pyridyl)quinoxaline) (1) and [Fe(ABPT)2(NCX)2] [ABPT = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole, X = S (2) and Se (3)] were synthesized and the crystal structure of 1 determined by x-ray diffraction methods. It crystallizes in the monoclinic system space group P21/n, a 12.057(2), b 22.474(5), c 15.004(7) Å, β 109.76(3)°, Z = 4 and T = 293 K. The structure is made up of discrete [Fe(DPQ)2(NCS)2] units. Each metal atom is in a distorted FeN6 octahedral environment, the Fe-N bonds ranging from 2.013(8) Å to 2.425(8) Å. Variable-temperature magnetic susceptibility data in the temperature range 290-4.2 K revealed that 1 is high spin, in contrast to 2 and 3 which show a moderately cooperative high spin (HS ↔ LS) transition, centered at T1/2 = 186 K and 224 K for 2 and 3, resp. The thermodn. model of Slichter and Drickamer was applied to account for the magnetic data. The intermol. interaction parameters, the enthalpy and entropy changes associated with the spin transition of 2 were estimated as Γ = 2.3 kJ mol-1, ΔH = 10.7 kJ mol-1 and ΔS = 58 J mol-1 K-1, resp.

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Category: isoquinoline. 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: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about New copper(I) complex with triazole derivative ligand containing α-diimine moiety: synthesis, structure, luminescence and electrochemistry. Author is Wang, Wen-Jwu; Lin, Chien-Ho.

One cuprous complex [Cu(L)(PPh3)I] was obtained by reaction of [Cu(PPh3)3I] with a new α-diimine ligand L (N-diphenylmethylene-3,5-di(2′-pyridyl)-4-amino-1,2,4-triazole). The complex was characterized by UV-visible, luminescence, 1H NMR spectroscopy and cyclic voltammetric study. The structure of ligand L and complex are confirmed by single crystal x-ray diffraction study. [Cu(L)(PPh3)I] crystallizes in the monoclinic space group P21/c with a 19.9291(4), b 10.0691(2), c 21.9245(5) Å,β 92.481(10)°, and Z = 4. The complex shows a MLCT band in the 350-545 nm region and exhibits luminescent emission at 600 nm at room temperature in CH2Cl2 solution Cyclic voltammogram of [Cu(L)(PPh3)I] shows a quasi-reversible redox couple of the Cu center at 0.67 V for Cu(I)/Cu(II) and an irreversible reduction potential at -0.98 V accompanied by a stripping peak of Cu at -0.11 V for Cu(I)/Cu(0).

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine(SMILESS: NN1C(C2=NC=CC=C2)=NN=C1C3=NC=CC=C3,cas:1671-88-1) is researched.SDS of cas: 25150-27-0. The article 《Absorption Spectra, Luminescence Properties, and Electrochemical Behavior of Cyclometalated Iridium(III) and Rhodium(III) Complexes with a Bis(pyridyl)triazole Ligand》 in relation to this compound, is published in Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:1671-88-1).

Two new cyclometalated Rh(III) and Ir(III) complexes have been synthesized, and their absorption spectra, luminescence properties (in rigid matrix at 77 K and in fluid solution at room temperature), and electrochem. behavior have been investigated and compared to those of other similar Rh(III) and Ir(III) cyclometalated species. The new compounds are [Rh(ppy)2(dpt-NH2)](PF6) (1) and [Ir(ppy)2(dpt-NH2)](PF6) (2) (ppy = phenylpyridine anion; dpt-NH2 = 4-amino-3,5-bis(2-pyridyl)-4H-1,2,4-triazole). The absorption spectra of the compounds are dominated by intense ligand-centered bands in the UV region (εmax in the range 104-105 M-1 cm-1) and by moderately intense metal-to-ligand charge transfer bands in the visible region (εmax in the range 103-104 M-1 cm-1). A reversible oxidation occurs for 2 at +1.23 V vs SCE, assigned to removal of an electron from a metal-centered dπ orbital, while an irreversible oxidation is observed for 1 at more pos. potentials (Epeak = +1.51 V vs SCE), assigned to removal of an electron from a metal-ligand (C-) σ-bonding orbital. Both complexes are luminescent in rigid matrixes at 77 K (1, λmax = 458 nm, τ = 160 μs; 2, λmax = 475 nm, τ = 5.8 μs), while only the Ir compound emits in fluid solution at room temperature (λmax = 560 nm, τ = 870 ns, Φ = 0.246). The emission originates from a metal-perturbed, triplet ppy-centered excited state for the Rh species, while a triplet MLCT level is responsible for the emission of the Ir compound The results obtained are a step toward the preparation of photoactive and redox-active multinuclear compounds based on bis(pyridyl)triazole derivative bridges and incorporating Ir(III) and Rh(III) cyclometalated building blocks.

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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 Probing the dinucleating behavior of a bis-bidentate ligand: synthesis and characterization of some di- and mononuclear cobalt(II), nickel(II), copper(II) and zinc(II) complexes of 3,5-di(2-pyridyl)-4-(1H-pyrrol-1-yl)-4H-1,2,4-triazole, published in 2006-02-06, which mentions a compound: 1671-88-1, Name is 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, Molecular C12H10N6, Synthetic Route of C12H10N6.

As a probe of the dinucleating ability of the known but little studied bis-bidentate ligand 3,5-di(2-pyridyl)-4-(1H-pyrrol-1-yl)-4H-1,2,4-triazole (pldpt), its reactivity towards MX2·6H2O (M = CoII, NiII and ZnII; X = ClO4- and BF4-) as well as Cu(ClO4)2·6H2O in a 1:1 metal-to-ligand molar ratio in MeCN has been investigated. In the case of CoII, NiII and ZnII, these reactions gave dinuclear complexes MII2(pldpt)2X4(MeCN)m(H2O)n whereas for CuII the mononuclear complex [CuII(pldpt)2(ClO4)2] initially was isolated, followed by the dinuclear complex [CuII2(pldpt)2(MeCN)2(H2O)2](ClO4)4. The use of the strongly polar aprotic co-solvent DMF resulted in the partial breakdown of the initial dinuclear entities in the case of CoII and NiII but not in the case of ZnII. In all five of the structurally characterized dinuclear complexes the (N’,N1,N2,N”)2 double-bridging coordination mode is realized with distorted octahedral N4Y2-coordinated metal centers (Y = DMF, H2O or MeCN). The two mononuclear complexes feature the common trans-(N’,N1)2 coordination mode with axial DMF or ClO4- co-ligands. The near-perpendicular orientation [82.4(3)-88.8(1)°] of the π-electron-rich 4-(1H-pyrrol-1-yl) substituent with respect to the triazole ring of pldpt observed in all of these structures means that no π-interactions are expected between these rings and electronic interaction is likely to be small. Whether a di- or mononuclear complex of pldpt forms is therefore primarily determined by a number of other factors including the reaction stoichiometry, the nature of the counterions and the solvent as well as the relative solubility of the various possible products. Clearly the nature of the N4 substituent can have a major impact on the last of these factors. Magnetic studies carried out on the dinuclear complexes revealed that the triazole bridges mediate relatively weak antiferromagnetic coupling between the two metal centers.

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HPLC of Formula: 1671-88-1. 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: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about Synthesis and characterization of copper(I) complexes with triazole derivative ligands containing an α-diimine moiety.

Two cuprous complexes Cu(L1)(PPh3)I (1) and Cu(L2)(PPh3)I (2) were obtained by reaction of Cu(PPh3)3I with two different α-diimine ligands L1 (3,5-di(2-pyridyl)-4-amino-1,2,4-triazole) and L2 (N-benzylidene-3,5-di(2-pyridyl)-4-amino-1,2,4-triazole), resp. These two complexes were characterized by UV-visible, luminescence, 1H NMR spectroscopy and cyclic voltammetric studies. The structures are confirmed by the single crystal x-ray diffraction study. The compound Cu(L1)(PPh3)I (1) crystallizes in the triclinic space group P-1 with a 8.3188(14), b 9.2243(15), c 21.177(4) Å, α 78.156(3), β 86.45(3), γ 65.966(3)°, Z = 2 and the compound Cu(L2)(PPh3)I (2) crystallizes in the triclinic space group P-1 with a 8.9671(7), b 13.9737(11), c 14.6850(12) Å, α 82.2580(10), β 75.7020(10), γ 72.2790(10)°, Z = 2. Both complexes show an MLCT band at 340-545 nm region, and complex 2 exhibits luminescence (possibly phosphorescence) at room temperature in a CH2Cl2 solution The cyclic voltammogram of Cu(L1)(PPh3)I shows the redox couples at +0.36 and -0.545 V (Ag/AgCl).

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Related Products of 1671-88-1. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 3,5-Di(pyridin-2-yl)-4H-1,2,4-triazol-4-amine, is researched, Molecular C12H10N6, CAS is 1671-88-1, about Influence of aminotriazole additives in electrolytic solution on dye-sensitized solar cell performance. Author is Kusama, Hitoshi; Arakawa, Hironori.

The influence of aminotriazole additives in acetonitrile solution of an I-/I3- redox electrolyte on the performance of a bis(tetrabutylammonium)cis-bis(thiocyanato)bis(2,2′-bipyridine-4-carboxylic acid, 4′-carboxylate)ruthenium(II) (N719) dye-sensitized TiO2 solar cell was studied. The current-voltage characteristics were investigated under AM 1.5 (100 mW/cm2) for 10 different aminotriazole compounds The aminotriazole additives tested had varying effects on the solar cell performance. Most of the additives enhanced the open-circuit photovoltage (Voc), fill factor (ff) and the solar energy conversion efficiency (η), but reduced the short circuit photocurrent d. (Jsc) of the solar cell. The highest η of 7.6% was obtained by adding 3-amino-1H-1,2,4-triazole and η was comparable to that of 4-t-butylpyridine (TBP). Both the phys. and chem. properties of the aminotriazoles were computationally calculated in order to determine the reasons why the additive affects the solar cell performance. The greater the calculated partial charge of the nitrogen atoms in the mol., the larger the Voc value. The Voc of the solar cell also increased as the size of the aminotriazole mols. decreased. The Jsc value increased with increasing the absolute difference in the dipole moments between the calculated aminotriazoles and acetonitrile. These results suggest that the electron donicity of the aminotriazole additives influenced the interaction with the TiO2 photoelectrode and the solvent, which altered the dye-sensitized solar cell performance.

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