Category: 14389-12-9

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9 ) is researched.Computed Properties of C6H5N5.Song, Wei-Chao; Pan, Qinhe; Song, Peng-Chao; Zhao, Qiang; Zeng, Yong-Fei; Hu, Tong-Liang; Bu, Xian-He published the article 《Two unprecedented 10-connected bct topological metal-organic frameworks constructed from cadmium clusters》 about this compound( cas:14389-12-9 ) in Chemical Communications (Cambridge, United Kingdom). Keywords: unprecedented ten connected bct organic framework cadmium cluster preparation; cadmium isophthalic acid pyridyl tetrazole metal organic framework preparation; crystal mol structure cadmium isophthalic acid pyridyl tetrazole cluster. Let’s learn more about this compound (cas:14389-12-9).

By simply modifying the expansion of ligand tether length, two Cd(ii) metal-organic frameworks have been constructed from linear tetranuclear and trinuclear cadmium clusters, resp., which present an unprecedented 10-connected unimodal bct net.

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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

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, Zeitschrift fuer Anorganische und Allgemeine Chemie called Direct Synthesis and Characterization of New Copper(II) and Zinc(II) 5-R-Tetrazolato Complexes [R = Me, Ph, 4-Py] with Ethylenediamine and DMSO as Coligands, Author is Mosalkova, Anastasiya P.; Voitekhovich, Sergei V.; Lyakhov, Alexander S.; Ivashkevich, Ludmila S.; Gaponik, Pavel N.; Ivashkevich, Oleg A., which mentions a compound: 14389-12-9, SMILESS is C1(C2=NN=NN2)=CC=NC=C1, Molecular C6H5N5, Application In Synthesis of 5-(4-Pyridyl)-1H-tetrazole.

Three novel 5-R-tetrazolato complexes (R = Me, Ph, 4-Py), [Zn2(MeCN4)4(DMSO)2]n (1), [Cu2(PhCN4)4(en)2]·2DMSO (2), and {[Cu(4-PyCN4)2(DMSO)2]·4DMSO}n (3), were isolated as unexpected products under attempts to prepare heterometallic tetrazolates using a direct synthesis strategy in the Cu0-ZnO-en-RCN4H-DMSO system (en = ethylenediamine). The prepared compounds were characterized by elemental, single-crystal x-ray, and thermal analyses, and IR spectroscopy. Variation of the 5-substituent of the tetrazole ring causes different composition of complexes 1-3 and diverse coordination modes of 5-R-tetrazolato ligands. Complex 1 is a 3-dimensional coordination polymer due to N1,N4-bridging of 5-methyltetrazolato anions. Complex 2, with en as a coligand, has a dinuclear structure with two copper atoms linked together by two 5-phenyltetrazolato ligands by tetrazole N2,N3 bridges. Complex 3 represents a 2-dimensional coordination polymer, formed due to 5-(4-pyridyl)tetrazolato bridges between adjacent copper atoms (with the tetrazole and pyridine rings nitrogen atoms as coordination centers). DMSO mols., included in all the compounds, are solvate and/or coordinated ones.

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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

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, Inorganica Chimica Acta called Three-dimensional bimetallic oxides constructed from molybdophosphonate chains and secondary-metal/4-pyridyltetrazole components, Author is Jones, Stephanie; Darling, Kari; Zubieta, Jon, which mentions a compound: 14389-12-9, SMILESS is C1(C2=NN=NN2)=CC=NC=C1, Molecular C6H5N5, Quality Control of 5-(4-Pyridyl)-1H-tetrazole.

The hydrothermal reactions of molybdenum(VI) oxide, 1,2-ethylenediphosphonic acid, 4-pyridyltetrazole (4-Hpt) and the appropriate metal acetate yielded three-dimensional bimetallic oxides [Mx(4-Hpt)y(H2O)z{Mo5O15(O3PCH2CH2PO3)}]·nhydrate (M = Co or Ni, x = 2, y = 2, z = 6; M = Cu, x = 4, y = 3, z = 1). The Co(II) and Ni(II) phases are isomorphous with structures constructed from the common {Mo5O15(O3PCH2CH2PO3)}n4n- chains linked through binuclear {M2(4-Hpt)2(H2O)6}4+ subunits to provide the three-dimensional connectivity. The Cu(I) species consists of the molybdophosphonate chains embedded in a framework of Cu(I) tetrahedra linked through the tetrazole N donors of the 4-Hpt ligands.

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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

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: 14389-12-9, is researched, Molecular C6H5N5, about Safe and fast tetrazole formation in ionic liquids, the main research direction is carbonitrile azide cycloaddition ionic liquid; tetrazole preparation; ionic liquid cycloaddition solvent.Computed Properties of C6H5N5.

The [2 + 3]-cycloaddition of nitriles and azides is reliable for intramol. reactions, but the hazards with volatile azides in intermol. reactions are tremendous. Zinc catalysis in aqueous solution is a magnificent improvement, but requires the removal of the zinc salts from the acidic product. The use of safe solvents featuring low vapor pressure and good solubility of NaN3, is reported. Ionic liquids based on alkylated imidazoles combined with microwave heating turned out to be a solution for the given tasks.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Using solid-state density functional theory and terahertz spectroscopy to spectroscopically distinguish the various hydrohalide salts of 5-(4-pyridyl)tetrazole, the main research direction is pyridyltetrazole hydrobromide hydrochloride solid state density functional far IR; crystal structure pyridyltetrazole hydrobromide hydrochloride; mol structure pyridyltetrazole hydrobromide hydrochloride; tetrazole pyridyl hydrobromide hydrochloride crystal mol structure far IR.Safety of 5-(4-Pyridyl)-1H-tetrazole.

The crystal structures and exptl. THz spectra of the isostructural hydrobromide and hydrochloride salts of 5-(4-pyridyl)tetrazole were reproduced using solid-state d. functional theory as implemented in CRYSTAL09. The effect of the halide size was studied to determine the influence on the low energy lattice and mol. vibrations exhibited at 10-100 cm-1, known as the terahertz (THz) region. Using solid-state DFT, the normal modes of these THz vibrations were determined and the mass and size of the halide anion has a significant effect in this region. A trend was observed in the frequencies in the terahertz region, such that increasing the mass of the anion, produces an overall red shift in the frequency. Crystallog. data are given.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

SDS of cas: 14389-12-9. 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: 5-(4-Pyridyl)-1H-tetrazole, is researched, Molecular C6H5N5, CAS is 14389-12-9, about Group II metal-directed structural variation of coordination compounds derived from 5-[N-acetato(4-pyridyl)]tetrazolate ligand.

Reactions of MCl2 (M = Mg, Ca, Sr, Ba) and a4-ptz (a4-ptz = 5-[N-carboxymethyl(4-pyridyl)]tetrazolate) potassium salt in water, resp., and produced four complexes, [Mg(H2O)6]·(a4-ptz)2·2H2O (1), [Ca(a4-ptz)2(H2O)4]n·2nH2O (2), [Sr(a4-ptz)2(H2O)4]n·2nH2O (3), [Ba4(a4-ptz)8(H2O)16]n·4nH2O (4). These compounds were structurally characterized by elemental anal., IR spectroscopy and single-crystal x-ray diffraction. Compound 1 has a mononuclear structure bearing distinct intermol. hydrogen-bond interactions to form a three-dimensional supramol. network. Compounds 2-4 have 1-dimensional polymeric chains that are bridged by two water mol. linkers. The luminescence properties of 1-4 were studied at room temperature in the solid state.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

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: 14389-12-9, is researched, SMILESS is C1(C2=NN=NN2)=CC=NC=C1, Molecular C6H5N5Journal, Article, Inorganic Chemistry called A Highly Connected Trinuclear Cluster Based Metal-Organic Framework for Efficient Separation of C2H2/C2H4 and C2H2/CO2, Author is Li, Qian; Wu, Nana; Li, Jia; Wu, Dapeng, the main research direction is cobalt MOF preparation acetylene adsorption separation ethylene carbon dioxide; crystal structure cobalt dihydroxybenzenedicarboxylate pyridyltetrazolate MOF trinuclear cluster.Formula: C6H5N5.

One of the barriers for efficient gas separation is the trade-off between the selectivity and adsorption capacity. To address this issue, the authors synthesized an anionic trinuclear CoII based 3-dimensional MOF (NH4)[Co3(OH)(4-Ptz)3(DOBDC)1.5]·3EtOH·2.5H2O (NbU-8, DOBDC = 2,5-dioxido-1,4-benzenedicarboxylate, HPtz = 5-(4-pyridyl)tetrazolate), which was characterized by an ultramicroporous building unit (UBU) and Lewis basic binding sites on the pore surfaces. Remarkably, the combination of the two strategies can synergistically enhance the C2H2 adsorption capacity (182.9 cm3/g at 298 K) and simultaneously achieve a high separation performance toward C2H2/C2H4 and C2H2/CO2 mixtures Besides theor. calculations, the separation efficiencies of C2H2/C2H4 and C2H2/CO2 are also demonstrated using breakthrough experiments D. functional theory calculations further confirmed the -OH groups and ultramicroporous building units play an important synergistic effect in efficiently capturing acetylene mols. Through a synergy strategy, a highly connected trinuclear CoII based metal-organic framework (NbU-8) was synthesized. It shows an excellent separation performance toward C2H2/C2H4 and C2H2/CO2, which is proved by breakthrough experiments and d. functional theory calculations

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

Tripuramallu, Bharat Kumar; Manna, Paulami; Das, Samar K. published an article about the compound: 5-(4-Pyridyl)-1H-tetrazole( cas:14389-12-9,SMILESS:C1(C2=NN=NN2)=CC=NC=C1 ).SDS of cas: 14389-12-9. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:14389-12-9) through the article.

Herein we report 6 new coordination polymers [Co(1,2-pda)(1,2-bix)]n, [Co(hfipbb)(1,2-bix)]n.nH2O, [Co(ADA)(1,2-bix)]n, [Co(ADA)(1,3-bix)]n.nH2O, [Co(1,4-pda)2(2-pztz)]2[Co(H2O)6].2nH2O, [Co2(μ-OH)(1,3-pda)(4-ptz)]n based on the flexible carboxylate ligands 1,2-phenylenediacetic acid (1,2-H2pda), 1,3-phenylenediacetic acid (1,3-H2pda), 1,3-adamantanediacetic acid (H2ADA), 4,4′-(hexafluoroisopropylidene)bis(benzoic acid) (H2hfipbb) and secondary N-donor ligands 1,3-bis(imidazole-1-ylmethyl)-benzene (1,3-bix), 1,2-bis(imidazole-1-ylmethyl)-benzene (1,2-bix), 5-(4-pyridyl)tetrazole (4-ptz), and 2-(2H-tetrazol-5-yl)pyrazine (2-pztz). All the compounds were characterized by single crystal x-ray diffraction anal., IR spectroscopy, elemental anal. and bulk homogeneity by powder x-ray diffraction. A subtle relation between the position of the coordinating groups in the linker (known as linker coordination angle, LCA) and the dimensionality and topol. of the final architectures of the title compounds was discussed systematically by comparing with the structurally related reported compounds [Co(1,4-pda)(1,4-bix)]n, [Co(hfipbb)(1,4-bix)0.5]n, and [Co2 (μ-OH)(1,4-pda)(4-ptz) ]n.nH2O. The compounds studied are classified into four different mixed linker classes, based on the skeleton geometry of the linker. Finally, temperature dependent magnetic susceptibility measurements were studied and the relevant zero-field splitting parameters were determined

As far as I know, this compound(14389-12-9)SDS of cas: 14389-12-9 can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-(4-Pyridyl)-1H-tetrazole(SMILESS: C1(C2=NN=NN2)=CC=NC=C1,cas:14389-12-9) is researched.Safety of 2-(7-Bromo-1H-indol-3-yl)acetic acid. The article 《Secondary spacer modulated assembly of polyoxometalate based metal-organic frameworks》 in relation to this compound, is published in Dalton Transactions. Let’s take a look at the latest research on this compound (cas:14389-12-9).

To study the influence of a secondary spacer on the resulting structures of POMOFs containing pytz, five new compounds with different dimensionalities, [Cu5(2-pytz)6(H2O)4][SiMo12O40]·3H2O (1), [Cu3(2-pytz)4bipy][H2SiMo12O40]·bipy (2), [Cu3(2-pytz)2(bipy)4(H2O)6][H4SiW12O40]2·6H2O (3), [Cu2(2-pytz)(phen)(OH)]2[SiW12O40]·H2O (4), [Cu3(4-pytz)4(H2O)4][H2SiW12O40]·2H2O (5) (pytz = pyridyltetrazole), were synthesized. When only 2-pytz was employed, compound 1 with a 3D framework was obtained, whereas when the secondary spacers (4,4′-bipy, phen and 4-pytz) were introduced into the reaction system of 1, compounds 2-5 were obtained and exhibit a broad range of structures, including 0D, 1D, 2D and 3D frameworks. It can be observed from the architectures of compounds 1-5 that the secondary spacers have a great effect on the structures of the MOFs, which gave various dimensional POMOF compounds Addnl., photocatalytic experiments of 1-5 for the photocatalytic degradation of RhB under UV irradiation were also studied.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

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: 14389-12-9, is researched, Molecular C6H5N5, about Syntheses Study of Keggin POM Supporting MOFs System, the main research direction is preparation silver pyridyltetrazolate molybdate tungstate Keggin MOF; crystal structure silver pyridyltetrazolate molybdate tungstate Keggin MOF; luminescence silver pyridyltetrazolate molybdate tungstate Keggin MOF.Reference of 5-(4-Pyridyl)-1H-tetrazole.

To study the influence of reactive conditions on the structures of Keggin POM supporting metal-organic frameworks (MOFs), five new compounds, [Ag6(2-pytz)4(H2O)2][HPMo12O40] (1), {[Ag14(2-pytz)12(H2O)4][H2PMo12O40]2}·3H2O (2), {[Ag6(2-pytz)4(H2O)4][H2SiW12O40]}·6H2O (3), {[Ag3(3-pytz)2]2·[AgPMo12O40]}·2H2O (4), [Ag6(4-pytz)4][HPMo12O40] (5) [pytz = 5-(pyridyl)tetrazolate], were hydrothermally synthesized by tuning the reactive species and pH values and characterized by routine method and single-crystal x-ray crystallog. Although compounds 1-5 all show the POM supporting 3-dimensional MOFs skeleton, MOFs exhibit diverse structures and POMs play different supporting functions, more specifically, pseudo POM chains supporting MOFs in 1 and 2, isolated POM spheres supporting MOFs in 3, true POM chains supporting MOFs in 4, and pseudo POM layers supporting MOFs in 5. The roles of the pH value, pytz derivatives, and the Keggin homologs in the formation of the POM supporting MOFs are discussed. The photoluminescence properties of compounds 1-3 were studied in the solid state at room temperature

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis