Category: 66943-05-3

1-Aza-15-Crown-5 Functionalized Graphene Oxide for 2D Graphene-Based Li⁺-ion Conductor was written by Banerjee, Moutusi;Gupta, Abhisek;Saha, Shyamal K.;Chakravorty, Dipankar. And the article was included in Small in 2015.Formula: C10H21NO4 This article mentions the following:

Attachment of Li⁺ ion on graphene surface to realize Li⁺-ion conductor is a real challenge because of the weak interaction between the ions and the functional groups of graphene oxide; although, a large number of theor. results are already available in the literature. To overcome this problem, graphene oxide is functionalized by 1-aza-15-crown-5, the cage-like structure containing four oxygens that can bind Li⁺ ion through electrostatic interaction. Li⁺ migration on graphene surface has been investigated using ac relaxation mechanism. Perfect Debye-type relaxation behavior with 灏?(relaxation exponent) value 閳?1 resulting from single ion is observed The activation energy of Li⁺ migration arising due to cation-锜?interaction is found to be 0.37 eV, which agrees well with recently reported theor. value. It is believed that this study will help to design isolated ion conductors for Li⁺-ion battery. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Formula: C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Conductometric, spectrophotometric, ¹HNMR and quantum chemical studies of the thermodynamics complexation of some transition metal ions with aza-15-crown-5 ligands in acetonitrile solution was written by Payehghadr, Mahmood;Nourifard, Farzaneh;Taghdiri, Mehdi;Behjatmanesh-Ardakani, Reza. And the article was included in Inorganic Chemistry: An Indian Journal in 2012.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane This article mentions the following:

In this paper, the complexation reactions between aza-15-crown-5 (A15C5) ligand with Zn²⁺, Hg²⁺, Co²⁺, Ag⁺ and Cd²⁺ ions has been studied by conductometric and spectrophotometric methods in acetonitrile solution at various temperatures The formation constants of the resulting 1:1 complexes were calculated from the computer fitting of the molar conductance-mole ratio data at different temperatures At 25鎺矯, the order of stability of the 1:1 complexes of the A15C5 ligand with different cations are as Hg²⁺> Co²⁺> Cd²⁺> Zn²⁺> Ag⁺. The enthalpy and entropy changes of the complexation reactions were evaluated from the temperature dependence of formation constants In addition, ¹HNMR study of complexes of nitrate salt of Cd⁺² in acetonitrile with A15C5 ligand at 25鎺矯 has been also undertaken to compare the results with those obtained by conductivity and UV measurements, which have been found to be in good agreement with each other. Finally, ab initio studies of the level of HF/lanl2dz have been done to investigate the binding energies of the ligand with Ag⁺ and Hg²⁺. All theor. data are in line with the exptl. ones. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthesis and properties of 2-Bromo-7-(1,4,7,10-tetraoxa-13-azacyclopentadec-13-yl)-2,4,6-cycloheptatrien-1-one was written by Kubo, Kanji;Mori, Akira;Takeshita, Hitoshi. And the article was included in Heterocycles in 2009.Formula: C10H21NO4 This article mentions the following:

2-Bromo-7-(1,4,7,10-tetraoxa-13-azacyclopentadec-13-yl)tropone (I) was found to display unique absorption spectral changes in the presence of guest cations. The complexes of I with guest salts were 1:1 for Mg(SCN)₂, Ca(SCN)₂, and Ba(SCN)₂, 1:2 for CdI₂ and 1:1.5 for Zn(SCN)₂, resp. Azacrown ether I could be used as a carrier for transport of Hg²⁺ through a chloroform liquid membrane. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Formula: C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Aza-crown-ether functionalized graphene oxide for gas sensing and cation trapping applications was written by Valt, M.;Fabbri, B.;Gaiardo, A.;Gherardi, S.;Casotti, D.;Cruciani, G.;Pepponi, G.;Vanzetti, L.;Iacob, E.;Malagu, C.;Bellutti, P.;Guidi, V.. And the article was included in Materials Research Express in 2019.Formula: C10H21NO4 This article mentions the following:

Graphene oxide has been functionalized with 1-aza-15-crown-5 ether via chem. route synthesis. Modification of graphene oxide was achieved via nucleophilic attack where the amine groups of an aza-crown ether mol. can easily react with the epoxy sites of graphene oxide basal plane. Owing to the inherent two-dimensional character of graphene oxide, it resulted in large specific-surface material with strong affinity for charged chem. species. Such property was exploited for reversible and controlled interaction of adsorbed species, envisaging two possible applications of the functionalized graphene oxide. Thus, an easy-to-fabricate and high-sensitivity functionalized graphene oxide-based gas sensor was achieved. The sensing material proved to be highly stable and capable of selectively detecting humidity at room temperature over a wide range of concentrations Moreover, the porous scaffold built by the functionalization, together with the well-known affinity of crown ethers to metal ions, allow the use of aza-crown ether functionalized graphene oxide for cation trapping application, e.g. pre-concentration of trace amount of metals or filter for water. Remarkable results in this field have been obtained with respect to some heavy-metal cations of environmental interest. We also demonstrated significant enhancement in performance vs. pure graphene oxide in both tested applications. More generally, the functionalization approach we pursued appears to be quite flexible in the tested applications. In fact, with an appropriate selection of crown ethers with specific cage-like structure, functionalized graphene oxide allows the capture of any desired guest in order to prepare a wide range of other crown-ether-GO nanocomposites for different applications. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Formula: C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Formula: C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthesis of supramolecular complexes based on tetracrown-substituted zinc porphyrinates was written by Mikhailitsyna, E. A.;Tyurin, V. S.;Beletskaya, I. P.. And the article was included in Protection of Metals and Physical Chemistry of Surfaces in 2010.Computed Properties of C10H21NO4 This article mentions the following:

New metal-porphyrin receptors functionalized by aza-crown-ether groups were synthesized. Main paths of supramol. self-assembly of porphyrin aza-crown-ether conjugates to bis-porphyrin sandwich complexes with metal and ammonium cations were studied using spectral methods of anal. (EAS, ¹H, ¹³CNMR, MALDI-ToF mass spectrometry). Principal regularities of axial coordination of the obtained bis-porphyrin complexes with exobidentate ligands (1,4-diazabicyclo[2.2.2]octane and pyrazine) were studied. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Computed Properties of C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. Ethers can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O閳ユ椊 or N閳ユ椊 bonds. The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.Computed Properties of C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synergistic Efficiency of 2-[(1-Aza-15-crown-5)-1-ylmethyl]-4-(phenyldiazenyl)-naphthalen-1-ol in the Liquid Extraction of Light Lanthanoid(III) Ions with 4-Benzoyl-3-phenyl-5-isoxazolone: The Role of Aza-Crown and Azo-Dye Fragments on the Extraction Ability was written by Petrova, Maria A.;Kurteva, Vanya B.. And the article was included in Journal of Chemical & Engineering Data in 2014.Computed Properties of C10H21NO4 This article mentions the following:

The solvent extraction of light lanthanoids with a mixture of 4-benzoyl-3-phenyl-5-isoxazolone (HPBI) and an azo-dye containing aza-crown in the side chain as a synergist (S), 2-[(1-aza-15-crown-5)-1-ylmethyl]-4-(phenyldiazenyl)-naphthalen-1-ol (PDN1A15C5), was studied. To examine the role of the azo-dye on the extraction ability, its simplified analog 1-benzyl-1-aza-15-crown-5 (BA15C5) was applied. The influence of the nitrogen on the crown fragment was estimated by a comparison with the efficiency of a series of crown ethers, benzo-15-crown-5 (B15C5) and 15-crown-5 (15C5). The lanthanoid ions were extracted from perchlorate medium at constant ionic strength 娓?= 0.1 using CHCl₃ as an organic phase. The composition of the extracted species was established as Ln(PBI)₃璺?S with PDN1A15C5 and BA15C5 and as Ln(PBI)₃璺疭 in the presence of a crown ether. The values of the equilibrium constants were calculated The influence of the synergistic agent on the extraction mechanism and enhancement is discussed. The parameters of the extraction processes were determined, and the separation factors between two adjacent lanthanoids were calculated In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Computed Properties of C10H21NO4).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Autoxidation is the spontaneous oxidation of a compound in air. In the presence of oxygen, ethers slowly autoxidize to form hydroperoxides and dialkyl peroxides. If concentrated or heated, these peroxides may explode. To prevent such explosions, ethers should be obtained in small quantities, kept in tightly sealed containers, and used promptly.Computed Properties of C10H21NO4

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Modification of gold surface by electrosynthesized mono aza crown ether substituted catechol-terminated alkane dithiol and its application as a new electrochemical sensor for trace detection of cadmium ions was written by Dehdashtian, Sara;Shamsipur, Mojtaba. And the article was included in Colloids and Surfaces, B: Biointerfaces in 2018.Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane This article mentions the following:

Among the toxic metals, cadmium is a very dangerous pollutant because it can extremely damage organs in humans and animals. This toxic metal is introduced into water from different industries such as metal plating, batteries, and alloys. Cadmium bioaccumulates in vital organs and unlike organic pollutants does not show any biol. degradation In this study, an electroactive self-assembled monolayer (SAM) was developed by covalent attachment of a novel mono aza-crown ether substituted catechol-terminated hexane dithiol onto the gold surface. The electrochem. behavior of the fabricated SAM electrode was investigated using voltammetry techniques and electrochem. impedance spectroscopy (EIS). The obtained results from voltammetric experiments revealed that the crown ether moiety of SAM forms a selective complex with cadmium ion. Under optimal conditions, Cd²⁺ could be detected in the range of 15娓璏 to 65娓璏 with a detection limit of 4.5娓璏. Selectivity measurements reveal that the sensor is specific for Cd²⁺ even in the presence of high concentrations of other metal ions. The proposed sensor was applied to the determination of cadmium ion in water samples with high sensitivity and good selectivity. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive. Electron-deficient reagents are also stabilized by ethers. For example, borane (BH3) is a useful reagent for making alcohols. Pure borane exists as its dimer, diborane (B2H6), a toxic gas that is inconvenient and hazardous to use. Borane forms stable complexes with ethers, however, and it is often supplied and used as its liquid complex with tetrahydrofuran (THF).Quality Control of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthesis of 4-nitro- and 4-aminophenylazacrown ethers was written by Oshchepkov, Aleksandr S.;Oshchepkov, Maksim S.;Anisimov, Alexander V.;Fedorova, Olga A.. And the article was included in Makrogeterotsikly in 2015.HPLC of Formula: 66943-05-3 This article mentions the following:

The study was dedicated to finding optimal reaction conditions for the introduction of 4-nitro- and 4-aminophenyl substituents into the structure of azacrown ethers with a varied ratio of oxygen to nitrogen heteroatoms. The synthetic procedure was proposed for the synthesis of 4-nitroaryl derivatives of crown ethers. This method was remarkably simple, has easy work-up and affords the formation solely of the monoarylation product. In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3HPLC of Formula: 66943-05-3).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides. Ethyl ether is an excellent solvent for extractions and for a wide variety of chemical reactions. It is also used as a volatile starting fluid for diesel engines and gasoline engines in cold weather. Dimethyl ether is used as a spray propellant and refrigerant. Methyl t-butyl ether (MTBE) is a gasoline additive that boosts the octane number and reduces the amount of nitrogen-oxide pollutants in the exhaust. The ethers of ethylene glycol are used as solvents and plasticizers.HPLC of Formula: 66943-05-3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ab initio and density functional theoretical design and screening of model crown ether based ligand (host) for extraction of lithium metal ion (guest): effect of donor and electronic induction was written by Boda, Anil;Ali, Sk. Musharaf;Rao, Hanmanth;Ghosh, Sandip K.. And the article was included in Journal of Molecular Modeling in 2012.Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane This article mentions the following:

The structures, energetic and thermodn. parameters of model crown ethers with different donor, cavity and electron donating/ withdrawing functional group were determined with ab initio MP2 and d. functional theory in gas and solvent phase. The calculated values of binding energy/enthalpy for lithium ion complexation are marginally higher for hard donor based aza and oxa crown compared to soft donor based thia and phospha crown. The calculated values of binding enthalpy for lithium metal ion with 12C4 at MP2 level of theory is in good agreement with the available exptl. result. The binding energy is altered due to the inductive effect imparted by the electron donating/ withdrawing group in crown ether, which is well correlated with the values of electron transfer. The role of entropy for extraction of hydrated lithium ion by different donor and functional group based ligand was demonstrated. The HOMO-LUMO gap is decreased and dipole moment of the ligand is increased from gas phase to organic phase because of the dielec. constant of the solvent. The gas phase binding energy is reduced in solvent phase as the solvent mols. weaken the metal-ligand binding. The theor. values of extraction energy for LiCl salt from aqueous solution in different organic solvent is validated by the exptl. trend. The study presented here should contribute to the design of model host ligand and screening of solvent for metal ion recognition and thus can contribute in planning the experiments In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Ab initio and density functional theoretical design and screening of model crown ether based ligand (host) for extraction of lithium metal ion (guest): effect of donor and electronic induction was written by Boda, Anil;Ali, Sk. Musharaf;Rao, Hanmanth;Ghosh, Sandip K.. And the article was included in Journal of Molecular Modeling in 2012.Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane This article mentions the following:

The structures, energetic and thermodn. parameters of model crown ethers with different donor, cavity and electron donating/ withdrawing functional group were determined with ab initio MP2 and d. functional theory in gas and solvent phase. The calculated values of binding energy/enthalpy for lithium ion complexation are marginally higher for hard donor based aza and oxa crown compared to soft donor based thia and phospha crown. The calculated values of binding enthalpy for lithium metal ion with 12C4 at MP2 level of theory is in good agreement with the available exptl. result. The binding energy is altered due to the inductive effect imparted by the electron donating/ withdrawing group in crown ether, which is well correlated with the values of electron transfer. The role of entropy for extraction of hydrated lithium ion by different donor and functional group based ligand was demonstrated. The HOMO-LUMO gap is decreased and dipole moment of the ligand is increased from gas phase to organic phase because of the dielec. constant of the solvent. The gas phase binding energy is reduced in solvent phase as the solvent mols. weaken the metal-ligand binding. The theor. values of extraction energy for LiCl salt from aqueous solution in different organic solvent is validated by the exptl. trend. The study presented here should contribute to the design of model host ligand and screening of solvent for metal ion recognition and thus can contribute in planning the experiments In the experiment, the researchers used many compounds, for example, 1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane).

1,4,7,10-Tetraoxa-13-azacyclopentadecane (cas: 66943-05-3) belongs to ethers. The oxygen atom in ethers are more electronegative than carbon, thus the hydrogens which are alpha to the ethers are more acidic than the simple hydrocarbons. At room temperature, ethers are pleasant-smelling colourless liquids. Relative to alcohols, ethers are generally less dense, are less soluble in water, and have lower boiling points. They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons. Vapours of certain ethers are used as insecticides, miticides, and fumigants for soil.Application In Synthesis of 1,4,7,10-Tetraoxa-13-azacyclopentadecane

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem