Month: March 2022

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Silica supported potassium oxide catalyst for dehydration of 2-picolinamide to form 2-cyanopyridine, the main research direction is picolinamide cyanopyridine silica potassium oxide catalyst dehydration.Formula: C6H6N2O.

The dehydration of 2-picolinamide to produce 2-cyanopyridine was investigated thoroughly using silica supported potassium oxide as a heterogeneous catalyst. Both large sp. surface area and pore size of SiO2 (B) contributed to the favorable catalytic performance for the synthesis of 2-CP. In addition, the yield of 2-CP showed the linear relationship with the amounts of medium basicity of the catalysts, demonstrating that medium basic sites were the active sites of silica supported potassium oxide catalysts. The catalysts were further characterized by XRD and FT-IR to clarify the active species. The results indicated the Si-O-K group produced by the reaction of K2CO3 with Si-OH was the active species, which was further evidenced by the adjustment of the amount of Si-OH by silylation and hydroxylation procedure.

Here is just a brief introduction to this compound(1452-77-3)Formula: C6H6N2O, more information about the compound(Picolinamide) is in the article, you can click the link below.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Electric Literature of C10H10Cl2N2Pt. 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about The effect of complexation with platinum in polyfluorene derivatives: A photo- and electro-luminescence study. Author is Assaka, Andressa M.; Hu, Bin; Mays, Jimmy; Iamazaki, Eduardo T.; Atvars, Teresa D. Z.; Akcelrud, Leni.

The synthesis and characterization of a polymeric structure containing fluorene units statistically linked to 3-cyclohexyl-thiophene and bipyridine PFOTBipy-poly[(4-hexylthiophene-2,5-diyl)(9,9-dihexyl-fluoren-2,7-diyl)-co-(bipyridine-5.5′-diyl)(9,9-dihexyl-fluoren-2,7-diyl)], is reported. The complexation with platinum was possible through the bipyridil units present in 10%, 50% and 100% content. The structure has a fluorenyl moiety between each bipyridine and thiophene groups resulting in a stable and efficient light-emitting polymeric material combining the well known emissive properties of fluorene, the charge mobility generated by thiophene and the electron-transfer properties of a metal complex as well. All the polymers were photo and electroluminescent materials, and showed phosphorescence at low temperatures Photoluminescence properties were studied by steady state and time resolved spectroscopy and showed changes of both emission peak and relative intensity of the emission bands depending on the relative amount of the platinum complex. The electroluminescence followed the trends found for photoluminescence. The blue emission of the copolymer without platinum is due to the fluorenyl segments and for higher complex contents the emission is characteristic of the aggregates involving the bipyridinyl moieties. Therefore, emission color can be tuned by the complex content. The turn-on voltage was strongly reduced from 22 to 8 V for the 100% complexed copolymer, as compared to the device made with the non complexed one, but the luminance decreased, due to quenching or trapping effects.

Here is just a brief introduction to this compound(15227-42-6)Electric Literature of C10H10Cl2N2Pt, more information about the compound(cis-Dichlorobis(pyridine)platinum(II)) is in the article, you can click the link below.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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.Jiang, Kui; Wei, Qingya; Lai, Joshua Yuk Lin; Peng, Zhengxing; Kim, Ha Kyung; Yuan, Jun; Ye, Long; Ade, Harald; Zou, Yingping; Yan, He researched the compound: 1-Bromoundecane( cas:693-67-4 ).Application of 693-67-4.They published the article 《Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells》 about this compound( cas:693-67-4 ) in Joule. Keywords: nitrogen fabrication electronic property organic solar cell. We’ll tell you more about this compound (cas:693-67-4).

The field of organic solar cells has seen rapid developments after the report of a high-efficiency (15.7%) small mol. acceptor (SMA) named Y6. In this paper, we design and synthesize a family of SMAs with an aromatic backbone identical to that of Y6 but with different alkyl chains to investigate the influence of alkyl chains on the properties and performance of the SMAs. First, we show that it is beneficial to use branched alkyl chains on the nitrogen atoms of the pyrrole motif of the Y6. In addition, the branching position of the alkyl chains also has a major influence on material and device properties. The SMA with 3rd-position branched alkyl chains (named N3) exhibits optimal solubility and electronic and morphol. properties, thus yielding the best performance. Further device optimization using a ternary strategy allows us to achieve a high efficiency of 16.74% (and a certified efficiency of 16.42%).

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: D-Alanine methylamide hydrochloride(SMILESS: N[C@H](C)C(NC)=O.[H]Cl,cas:61302-99-6) is researched.SDS of cas: 15227-42-6. The article 《Synthesis of stereoisomeric alanine containing peptide derivatives》 in relation to this compound, is published in Chemical & Pharmaceutical Bulletin. Let’s take a look at the latest research on this compound (cas:61302-99-6).

D-alanine derivatives and their stereoisomers and D-alanyl-D-alanine derivatives and their stereoisomers (R1-Ala-R2, R1-Ala-Ala-R2: R1 = PhCH2O2C, H; R2 = NHNH2, NHCH3, NHCH2CH2OH) were synthesized. All compounds obtained did not show antibacterial activity against Staphylococcus aureus, Sarcina lutea, Pseudomonas aeruginosa and Escherichia coli.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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: 15227-42-6, is researched, Molecular C10H10Cl2N2Pt, about Reactivity of geometric isomers of (-)-dichloropyridine(methyl p-tolyl sulfoxide)platinum(II) by optical rotatory dispersion, the main research direction is platinum sulfoxide pyridine complex substitution nucleophile; isomerization platinum sulfoxide pyridine complex reaction nucleophile.SDS of cas: 15227-42-6.

The reactions of the optically active geometric isomers of (-)-[Pt(Me-p-TolSO)(Py)Cl2] with several nucleophilic reagents (py, Ph3PS, Ph3P, Ph3As, and Me2SO) were studied by ORD, IR spectroscopy, and 1H and 31P NMR spectroscopy. A mechanism for the reaction is proposed.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Sokolenko, V. A.; Bondarenko, V. S.; Korniets, E. D.; Kovtonyuk, N. P.; Kovrova, N. B. published the article 《Solid-phase condensation of coordinated pyridine and γ-picoline in platinum(II) complexes》. Keywords: thermolysis platinum picoline pyridine complex; condensation picoline pyridine coordinated platinum.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Electric Literature of C10H10Cl2N2Pt. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15227-42-6) here.

The thermolysis of cis- and trans-[PtL2Cl2] (L = py, γ-picoline (pic)) was studied by IR and 1H NMR spectroscopy. cis-[PtL2Cl2] underwent cis-trans isomerization in the solid state at 200-220°. Thermolysis of trans-[PtL2Cl2] at 240-300° led to condensation of coordinated L to give PtL1Cl2 (L1 = 2,2′-bipyridine, 4,4′-dimethyl-2,2′-bipyridine). Thermolysis of [Pt(pic)4]Cl2 gave trans-Pt(pic)2Cl2 at 160°.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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 CO2 Hydrogenation and Formic Acid Dehydrogenation Using Ir Catalysts with Amide-Based Ligands, published in 2020-05-11, which mentions a compound: 1452-77-3, Name is Picolinamide, Molecular C6H6N2O, Computed Properties of C6H6N2O.

A series of Ir catalysts [Cp*Ir(H2O)(QCXNHR)][SO4] (1-16; Q = 2-pyridyl, 4-hydroxy-2-pyridyl, 6-hydroxy-2-pyridyl, 2-imidazolyl, 1-pyrazolyl; X = O, S, NH; R = H, Me, Ph, 4-hydroxyphenyl) bearing amide-based ligands were isolated or generated in situ by a deprotonated amide moiety with the hypotheses that strong electron-donating ability of the coordinated anionic nitrogen atom and the proton-responsive OH group near the metal center will improve the catalytic activity for CO2 hydrogenation and formic acid (FA) dehydrogenation. The effects of the modifications of the ligand architecture on the catalytic activity were investigated for CO2 hydrogenation at ambient conditions (25° with 0.1 MPa H2/CO2 (volume/volume = 1/1)) and under slightly harsher conditions (50° with 1.0 MPa H2/CO2) in basic aqueous solutions together with deuterium kinetic isotope effects (KIEs) with selected catalysts. Complex [Cp*Ir(L12)(H2O)][HSO4] (12, L12 = 6-hydroxy-N-phenylpicolinamidate) that has an anionic coordinating N atom and an OH group in the second coordination sphere, exhibits a TOF of 198 h-1 based on the initial 1 h of reaction. This TOF which, to the best of our knowledge, is the highest value ever reported under ambient conditions in basic aqueous solutions However, complex [Cp*Ir(L10)(H2O)][HSO4] (L10 = 4-hydroxy-N-methylpicolinamidate) performs better in long-term CO2 hydrogenation (up to a TON of 14700 with [Ir] = 10μM after 348 h and the final formate concentration of 0.643 M with [Ir] = 250μM.) at ambient conditions. Further, the catalytic activity for FA dehydrogenation was examined under three different conditions (pH 1.6, 2.3 and 3.5). The complex 12 in any of these conditions is less active compared to the picolinamidate catalysts without ortho-OH, owing to its instability. Theor. calculations were performed to examine the catalytic mechanism, and a step-by-step mechanism has been proposed for both CO2 hydrogenation and FA dehydrogenation reactions. D. functional theory calculations of [Cp*Ir(L3)(H2O)][HSO4] (L3 = picolinamidate) and the X-ray structure of the [Cp*Ir(L7)(H)]•H2O (L7 = N-methylpicolinamidate) complex imply a pH-dependent conformational change from N,N coordination to N,O coordination upon lowering the pH of the aqueous solution

Here is just a brief introduction to this compound(1452-77-3)Computed Properties of C6H6N2O, more information about the compound(Picolinamide) is in the article, you can click the link below.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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.Thirukovela, Narasimha Swamy; Balaboina, Ramesh; Kankala, Shravankumar; Vadde, Ravindhar; Vasam, Chandra Sekhar researched the compound: Picolinamide( cas:1452-77-3 ).Synthetic Route of C6H6N2O.They published the article 《Activation of nitriles by silver(I) N-heterocyclic carbenes: An efficient on-water synthesis of primary amides》 about this compound( cas:1452-77-3 ) in Tetrahedron. Keywords: silver NHC catalyst preparation; nitrile silver NHC catalyst hydration; primary amide preparation. We’ll tell you more about this compound (cas:1452-77-3).

A first example of silver(I) N-heterocyclic carbene (Ag(I)-NHC) catalyzed on-water synthesis of primary amides by hydration of nitriles under mild reaction conditions was described. This organometallic catalytic system has excellent tolerance for various homo-aromatic, hetero-aromatic and aliphatic nitriles to afford primary amides in good yields in neat water.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Category: tetrahydroisoquinoline. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Microcalorimetric studies of the thermal decomposition of ammonia-halide and amine-halide complexes of platinum(II), [Pt(NH2R)2X2]. Author is Al Takhin, Ghassan; Skinner, Henry A.; Zaki, Ahmed A..

The standard heats of formation of the crystalline compounds [PtL2X2] [L = NH2R (R = H, Me, CHMe2, Bu, Et, Pr, CH2CHMe2), en, pyridine; X = Cl, Br, I] were derived from the enthalpies of thermal decomposition of their cis isomers at elevated temperatures The enthalpy of sublimation (ΔHsub) of [PtL2Cl2] (L = pyridine) is estimated as 170 kJ/mol, which gives an average pyridine-Pt bond-dissociation enthalpy of 122 kJ/mol in the gas phase. For other amine ligands, the bond-dissociation enthalpy is less than for the pyridine complex, falling to a min. of 97 kJ/mol for NH3. These imply sublimation heats of 270-300 kJ/mol in the Cl complexes.

Here is just a brief introduction to this compound(15227-42-6)Category: tetrahydroisoquinoline, more information about the compound(cis-Dichlorobis(pyridine)platinum(II)) is in the article, you can click the link below.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

COA of Formula: C10H10Cl2N2Pt. 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Hydroxy complexes of platinum(II) and palladium(II). Author is Bushnell, Gordon William; Dixon, Keith Roger; Hunter, Robert George; McFarland, John James.

The preparation of hydroxy bridged complexes, [M2(OH)2-L4][BF4]2, where M = Pt and L = Et3P, Ph3P or py, or where M = Pd and L = Ph3P, is described. The structures are unambiguously established by ir, NMR, and x-ray crystallog. studies. The complexes are stable and resist bridge cleavage by tertiary phosphines under conditions which easily cleave analogous chloro bridged complexes.

Here is just a brief introduction to this compound(15227-42-6)COA of Formula: C10H10Cl2N2Pt, more information about the compound(cis-Dichlorobis(pyridine)platinum(II)) is in the article, you can click the link below.

Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem