Author: tianli

COA of Formula: C10H10Cl2N2Pt. 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Reactions of potassium tetrachloroplatinate(II) with pyridine derivatives in dimethylformamide and synthesis of potassium trichloro(pyridine)platinum(II). Author is Kong, Pi-Chang; Rochon, F. D..

The reactions of K2PtCl4 with pyridine derivatives L (L = py = pyridine, pic = picoline, and lut = lutidine) were studied in DMF. K[PtLCl3] (I) were isolated and the yield decreased with the order, 2,4-lut = 2-pic > 2,6-lut > 4-pic = py, which can be correlated to the steric hindrance of the ortho Me groups. Cis-[PtL2Cl2] (II) is the final product of the reactions. Trans-[PtL2Cl2] (III) can also be obtained from a DMF solution of [Pt(L)4]Cl2 (L = py) at room temperature A comparison of the above reactions in H2O and in DMF was also made.

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

Berezin, V. I.; Ganin, V. V.; Kovrikov, A. B.; Lipnitskii, I. V.; Rogalevich, N. L. published an article about the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6,SMILESS:[Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2 ).Application of 15227-42-6. 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:15227-42-6) through the article.

An IR and Raman spectroscopic investigation of crystalline PdPy2Cl2 was made. The vibrational frequencies were measured in the region from 3500 to 30 cm-1. The assignments of the observed bands were made on the basis of the frequency calculation for trans- and cis-PdPy2Cl2 plane and nonplanar configurations, using force constants, modelled from constants of [Pd(NH3)4]2+ and [PdCl4]2-. The calculation results were used to specify the metal-ligands stretching constants and their interactions.

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

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: 1452-77-3, is researched, SMILESS is O=C(N)C1=NC=CC=C1, Molecular C6H6N2OJournal, Polyhedron called Structural and electrochemical properties of two novel CdX2 (X = Br, I) picolinamide complexes, Author is Jadresko, Dijana; Markovic, Berislav; Medvidovic-Kosanovic, Martina; Matkovic-Calogovic, Dubravka; Szechenyi, Aleksandar; Pockaj, Marta; Balic, Tomislav; Popovic, Zora, the main research direction is cadmium bromine iodine picolinamide complex preparation thermal stability electrochem; crystal structure cadmium bromine iodine picolinamide complex.Safety of Picolinamide.

Two novel discrete cadmium(II) complexes, namely [CdBr2(pia)2] (1) and [CdI2(pia)2] (2) were prepared by reactions of aqueous solutions of CdX2 (X = Br, I) salts with picolinamide (pia) in the 2:1 ligand to metal stoichiometric ratio. Both compounds were characterized by elemental anal., IR-spectroscopy, TG/DSC analyses and electrochem. methods. The electrochem. characteristics of both ligand (pia) and prepared complexes were studied by cyclic and (cyclic) square-wave voltammetry, on a static mercury drop electrode (SMDE), in aqueous media over a wide pH range. The mol. and crystal structure of the compounds was determined by the single crystal X-ray diffraction method. X-ray structure anal. of 1 and 2 have shown that the compounds are isostructural with minor differences in the bond angles of the coordination sphere. In both compounds the Cd(II) ion is coordinated by two halide atoms and two mutually orthogonal picolinamide ligands that act as N,O-chelators in a distorted octahedral arrangement. In the crystal structure, the mols. of 1 and 2 are primarily linked via strong head-to-head amide hydrogen bond interactions forming dimers. In 1 the adjacent dimers are connected via N-H···Br hydrogen bonds and offset face to face π···π interactions that involve pyridine rings, while in the structure of 2, the dimers are connected via C-H···O, C-H···N and N-H···I hydrogen bonds into the final 3D structure. The intermol. interactions in both crystal structures were further studied by Hirshfeld surface anal. Electrochem. anal. of 2-picolinamide indicates the irreversible nature of its electro-reduction reaction on SMDE at pH 2. To provide better insight into the redox mechanism and electrokinetic properties of 2-picolinamide, the study of the effect of signal frequency on CSWV response was carried out, too. The electrochem. reduction of complex 2 involves two electron transfer reactions at -0.55 V and -0.83 V, indicating two redox active centers in the mol., while complex 1 appears to be apparently electro-inactive in the studied potential range.

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Tetrahydroisoquinoline – Wikipedia,
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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: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Bis-heteroleptic ruthenium(II) complex with 2-picolinamide: Synthesis, crystal structures, and spectroscopic study for anion recognition using the amide group.Computed Properties of C6H6N2O.

Cis-[Ru(bpy)2(OH2)2](OTf)2 (1·(OTf)2; OTf- = CF3SO3-) was reacted with 2-picolinamide (H2pia) in EtOH to form bis-heteroleptic complex [Ru(bpy)2(H2pia)]X2 (2·X2; X- = OTf- or Cl-). Crystal structures of 2·X2 revealed that H2pia was coordinated to Ru(II) through N of pyridyl group and O of amide group to form the N,O-coordination, and acted as a neutral ligand. Bond distances around the amide group and 1H NMR study for 22+ suggested that π-electron on the carbonyl group was delocalized to the whole amide group. Adding F- to the acetonitrile solution of 2·(OTf)2 changed the red solution to dark-red due to the transportation of π-electron on the amide group by the bound F- to the amide H. Absorption and 1H NMR spectroscopies revealed that the NH2 of 22+ undergoes selective two-step adduct reaction with F-: the H close to pyridyl group of H2pia first formed a 1:1 adduct (mono-F-adduct-22+), followed by the other H forming the 1:2 adduct (di-F-adduct-22+). Adding excess Li(OTf) to these F-adduct-22+ solutions changed the dark-red solution back to red, suggesting that the adducted F- was removed by Li+ to form 22+ and LiF.

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

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: 15227-42-6, is researched, SMILESS is [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2, Molecular C10H10Cl2N2PtJournal, Science Reports of the Hirosaki University called Infrared spectra of some transition metal halide complexes with pyridine, Author is Hatakeyama, Suekichi; Sato, Choei, the main research direction is transition metal halide pyridine complex; pyridine transition metal halide IR; IR transition metal halide pyridine; nickel halide pyridine complex IR; copper halide pyridine complex IR; platinum halide pyridine complex IR; halide metal pyridine complex IR.Product Details of 15227-42-6.

Assignments are given for the ir spectra of metal-pyridine complexes of the type NiX2.npy, CuX2.2py (X = Cl, Br; n = 1,2,4) and cis-, trans-PtCl2.2py in the 200-1610-cm-1 region. For a series of Ni complexes studied, the ν(Ni-N) vibrations occur at ∼240 cm-1. Cu complexes, on the other hand, show the ν(Cu-N) band near 270 cm-1. Among pyridine vibrations the ν4, ν9, ν10 and ν27, ring deformation vibrations, and the ν16, H in-plane deformation vibration, shift significantly to a higher frequency by complex formation. Among the rest, the ν10, in-plane ring deformation vibration, is the most sensitive upon complex formation.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Electrochemical reduction of geometric isomers of [Pt(C5H5N)2Cl2Br2] on a dropping mercury electrode in propylene carbonate solutions, published in 1996, which mentions a compound: 15227-42-6, mainly applied to electrochem reduction geometric isomer platinum complex; redox reaction coordinated pyridine platinum complex; pyridine halo platinum complex electroreduction; bromo chloro pyridine platinum complex electroreduction, Application of 15227-42-6.

The method of classical polarog. on a dropping Hg electrode in propylene carbonate was used to study the reduction of the isomeric complexes of Pt(IV) of type [Pt(C5H5N)2Cl2Br2] and of Pt(II) of type [Pt(C5H5N)2X2], where X = Cl, Br. The reduction of cis,cis,trans-[Pt(C5H5N)2Cl2Br2] and of cis,trans,cis-[Pt(C5H5N)2Cl2Br2] occurs according to an electrochem.-chem. mechanism during which, and following the 1-electron reduction of Pt(IV) to Pt(III), there occurs an intramol. redox process with participation of coordinated pyridine.

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Tetrahydroisoquinoline – Wikipedia,
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Electric Literature of C11H23Br. 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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Fluorescence detection of pyrene-stained Bacillus subtilis LPM1 rhizobacteria from colonized patterns of tomato roots.

A series of water soluble 8-alcoxypyrene-1,3,6-trisulfonic sodium salts bearing different alcoxy lateral chains and functional end groups was synthesized and the mol. structure was corroborated by NMR spectroscopy. The photophys. properties in water analyzed by UV-Vis and static and dynamic fluorescence revealed that all of the pigments emit in the blue region at a maximal wavelength of 436 nm and with fluorescence lifetimes in the range of ns. Among them, sodium 8-((10-carboxydecyl) oxy) pyrene-1,3,6-trisulfonate M1 exhibits a high fluorescence quantum yield (ϕ = 80%) and a good interaction with B. subtilis LPM1 rhizobacteria; this has been demonstrated through in vitro staining assays. Tomato plants (Solanum lycopersicon cv.Micro-Tom) increased the release of root exudates, mainly malic and fumaric acids, after 12 h of treatment with benzothiadiazole (BTH) as a foliar elicitor. However, the chemotaxis anal. demonstrated that malic acid is the most powerful chemoattractant of the rhizobacteria Bacillus subtilis LPM1: in agar plates, a major growth (60 mm) was found for a concentration of 100 mM, while in capillary tubes, the earliest response was at 30 min with 3.3 x 108 CFU mL-1. The confocal microscopic anal. carried out on the tomato roots of the pyrene stained B. subtilis LPM1 revealed that this bacterium mainly colonizes the epidermal zones, i.e. the junctions to primary roots, lateral roots and root hairs, meaning that these root hair sections are the highest colonisable sites involved in the biosynthesis of exudates. This fluorescent pyrene marker M1 represents a valuable tool to evaluate B. subtilis-plant interactions in an easy and quick test in both in vitro and in vivo tomato crops.

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Tetrahydroisoquinoline – Wikipedia,
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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Picolinamide(SMILESS: O=C(N)C1=NC=CC=C1,cas:1452-77-3) is researched.SDS of cas: 693-67-4. The article 《Effect of nicotinamide on the flagellar detachment and regeneration of Euglena》 in relation to this compound, is published in Bitamin. Let’s take a look at the latest research on this compound (cas:1452-77-3).

Euglena is capable of growth under various variety of nutritional and environmental conditions. Euglena is possible to grow under diverse culture conditions with and without light illumination, namely under both heterotrophic and photoautotrophic conditions. Euglena can synthesize most of vitamins and biofactors except for the exception, such as vitamin B1 and B12. In the present study, the effects of nicotinamide and its analogs on the flagellar detachment of Euglena were investigated using nicotinamide and the 12 kinds of structural analogs (nicotinic acid, pyrazine, pyrazine-2-carboxylic acid, 2-picolinamide, methylnicotinate, N-methylnicotinamide, 3-methylpyridine, pyridine-3-sulfate, pyridoxine, pyridoxal, pyridoxamine, isonicotinic acid hydrazide), NAD+, and NADP+. Among these compounds, nicotinamide, nicotinic acid, pyrazine-2-carboxylic acid, methylnicotinate, 2-picolinamide, and N-methylnicotinamide caused of the flagellar detachment and then cell division stopped. It was also found that nicotinamide added to Euglena cell was dilute with water and culture medium, cell division occurred and then flagella were regenerated after 24h, resulting in onset euglenoid exercise. The electrophoresis of the detached flagellar proteins reveled that the protein resembled tublin (55 kDa) and paraflagella rod 2 (69 KDa).

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Tetrahydroisoquinoline – Wikipedia,
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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, Chromatographia called A new stationary phase for capillary gas chromatography: Calix[4]resorcinarene functionalized with imidazolium cationic units, Author is Shuai, Xiaomin; Cai, Zhiqiang; Zhao, Xinyu; Chen, Yujie; Zhang, Qian; Ma, Ziwei; Hu, Junjie; Sun, Tao; Hu, Shaoqiang, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, SDS of cas: 693-67-4.

A novel calix[4]resorcinarene-based ionic liquid (C4RA-2IL) was synthesized, structurally characterized, and statically coated on capillary column as stationary phase for capillary gas chromatog. (GC). The column efficiency of the C4RA-2IL column is 3345 plates m-1, which are determined by n-dodecane at 120 °C. Based on its McReynolds constants, the C4RA-2IL column showed moderate polarity. Particularly, the C4RA-2IL column show high separation performance for a wide range of analytes and some difficult separation of meta/para-isomers. Moreover, it exhibited excellent selectivity for critical aromatic isomers of chloroaniline, bromaniline, iodoaniline, toluidine and xylidine isomers and shows advantageous separation capability over the com. polysiloxane stationary phase. This work presents a promising future of calixarene-based ionic liquid as a new type of stationary phase in GC separations

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Tetrahydroisoquinoline – Wikipedia,
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Recommanded Product: 1452-77-3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Bis(N-picolinamido)cobalt(II) Complexes Display Antifungal Activity toward Candida albicans and Aspergillus fumigatus. Author is Ghandhi, Laura H. D.; Bidula, Stefan; Pask, Christopher M.; Lord, Rianne M.; McGowan, Patrick C..

This report highlights the synthesis and characterization of ten new bis(N-picolinamido)cobalt(II) complexes of the type [(L)2CoX2]0/2+, whereby L=N-picolinamide ligand and X=diisothiocyanato (-NCS), dichlorido (-Cl) or diaqua (-OH2) ligands. Single crystal X-ray (SC-XRD) anal. for nine of the structures are reported and confirm the picolinamide ligand is bound to the Co(II) center through a neutral N,O binding mode. With the addition of powder X-ray diffraction (PXRD), we have confirmed the cis and trans ligand arrangements of each complex. All complexes were screened against several fungal species and show increased antifungal activity. Notably, these complexes had significant activity against strains of Candida albicans and Aspergillus fumigatus, with several compounds exhibiting growth inhibition of >80 %, and onecompound inhibiting Aspergillus fumigatus hyphal growth by >90 %. Conversely, no antifungal activity was exhibited toward Cryptococcus neoformans and no cytotoxicity towards mammalian cell lines.

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