Tag: M.W:100-200

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 An excursion in the second-order nonlinear optical properties of platinum complexes, published in 2021-11-01, which mentions a compound: 1008-89-5, mainly applied to review platinum complex photochromism hyperpolarizability ddipole moment, COA of Formula: C11H9N.

A review. Electrooptical devices and optical communications need compounds with second-order nonlinear optical (NLO) properties as construction blocks. Typically, to show a large quadratic hyperpolarizability, a compound should be asym., be characterized by a large variation between the dipole moments in the excited and ground states, and have low energy electronic transitions. For example, a large quadratic hyperpolarizability can be reached when an electron-donor moiety is linked by means of a π-conjugated spacer to an acceptor group. In the field of second-order nonlinear optics, particularly attractive are coordination metal complexes because they are often characterized by low-energy and high-intensity intraligand (IL), ligand-to-metal (LM), and metal-to-ligand (ML) charge transfer (CT) electronic transitions, that can be regulated by the choice of the metal and ligands. Among them, platinum(II) complexes are captivating. During this excursion, we will see the quadratic hyperpolarizability of many of them. After some basic NLO notions, the review presents various classes of NLO-active platinum compounds having mono- and bidentate nitrogen ligands (pyridine, bipyridine, phenanthroline), dithiolenes, cyclometalated ligands (imines, phenylpyridine, phenylbipyridine, and dipyridylbenzene), alkynyl ligands. It is shown how to regulate the quadratic hyperpolarizability with suitable ligands and how to photomodulate the NLO properties by means of a dithienylethene (DTE) moiety. Some examples of complexes with redox-switchable NLO properties are also given. Although the accent is on the quadratic hyperpolarizability measured in solution, it is also shown how some NLO-active platinum complexes can be nano-organized to afford thin films with nonlinear optical properties. The report is not comprehensive, but it allows to get into the field of NLO-active platinum compounds and to understand their potential.

After consulting a lot of data, we found that this compound(1008-89-5)COA of Formula: C11H9N can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Formula: C12H9N3. 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: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole, is researched, Molecular C12H9N3, CAS is 2208-59-5, about Synthesis and structure of a binuclear zinc complex [(ZnCl2)(PyBIm)]2. Author is Zhang, Quan-Zheng; Nie, Jiang-Hui; Zhou, Xu; Lu, Hong-Dian; Tian, Chang-An; Zhao, Di-Fang.

A new binuclear zinc complex [(ZnCl2)(PyBIm)]2 (PyBIm = 2-(4-pyridyl)benzimidazole) was synthesized by hydrothermal reaction. The complex crystallizes in triclinic space group P21/n with crystal cell parameters of a 0.77451(4)nm, b = 1.25249( 5) nm, c 1.31596(7) nm, β 100.294(3)° and Z = 2. The crystal x-ray anal. shows that Zn atom is coordinated by two Cl atoms and two N atoms from two PyBIm ligands in a distorted tetrahedral geometry. The Zn···Zn separation is 0.7094(5) nm, and the hydrogen bonding and π···π interactions also exist in the structure.

The article 《Synthesis and structure of a binuclear zinc complex [(ZnCl2)(PyBIm)]2》 also mentions many details about this compound(2208-59-5)Formula: C12H9N3, you can pay attention to it, because details determine success or failure

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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, Crystal Growth & Design called Anion-Controlled Assembly of Silver(I) Complexes of Multiring Heterocyclic Ligands: A Structural and Photophysical Study, Author is Kundu, Nabanita; Audhya, Anandalok; Abtab, Sk Towsif Md; Ghosh, Sanjib; Tiekink, Edward R. T.; Chaudhury, Muktimoy, which mentions a compound: 2208-59-5, SMILESS is C1(C2=CC=NC=C2)=NC3=CC=CC=C3N1, Molecular C12H9N3, Safety of 2-(Pyridin-4-yl)-1H-benzo[d]imidazole.

Four multiring heterocyclic ligands with benzimidazole (L1 and L3) and benzothiazole nuclei (L2 and L4) are reported. Their silver(I) complexes involving a variety of anions (both organic and inorganic) have been prepared by the process of self-assembly and structurally characterized by single-crystal x-ray diffraction analyses. Discrete metallocyclic complexes [Ag(L3)(X)]2 (X = NO3-, 3a; cis-HOOCCH:CHCOO-, 3b; 0.5SiF62-, 3c) and [Ag(L4)(Y)]2 (Y = NO3-, 4a; CF3SO3-, 4b) have been formed with the ligands L3 and L4, resp., where the pyridine nitrogen atom N1 is in the 3-position as against the coordination polymers [Ag(L1)(H2O)(NO3)]n, 1a, [Ag(L1)(CF3COO)]n, 1b and {2[Ag(L2)2(ClO4)].0.5.C2H5OH}n 2a, and [Ag(L2)2(cis-HOOCCH:CHCOO)]n, 2b, with the ligands L1 and L2, resp., in which the N1 atom occupies the 4-position in the pyridine ring. In addition to the primary ligands (L1-L4), the counteranions also have a dominant influence on the overall structures of these compounds Secondary bonding interactions, namely, hydrogen bonding, π···π-stacking, and C-H···π interactions, are also proven effective in shaping the dimensionalities of the solid state structures. Thus, a zigzag chain structure of 1a mediated by a nitrate anion generates a more complicated double layer structure in 1b where trifluoroacetate has replaced nitrate as the counterion. Discrete 12-membered metallocycles in 3a-3c generate 2-D arrays of flat (3a) and undulating topologies (3b and 3c), depending upon the type of their associated anions. Metallocycles 4a and 4b have less complicated structures compared to those of 3a-3c because of the replacement of NH by S in the heterocyclic ring, thereby reducing the hydrogen-bonding potential in the primary ligand in going from L3 to L4. In the solid state, the complexes show enhanced phosphorescence at 77 K with triplet lifetime in the range of 0.5-0.8 s, much shorter than those for the free ligands (2.3 – 3.3 s) because of increased spin-orbit coupling introduced by the coordinated Ag+ ion. This heavy-atom effect also has a causative influence in shortening the fluorescence lifetimes of these compounds

The article 《Anion-Controlled Assembly of Silver(I) Complexes of Multiring Heterocyclic Ligands: A Structural and Photophysical Study》 also mentions many details about this compound(2208-59-5)Safety of 2-(Pyridin-4-yl)-1H-benzo[d]imidazole, you can pay attention to it, because details determine success or failure

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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 Cobalt-catalyzed intramolecular decarbonylative coupling of acylindoles and diarylketones through the cleavage of C-C bonds, published in 2020, which mentions a compound: 1008-89-5, mainly applied to indole preparation; acyl indole intramol decarbonylative coupling cobalt catalyzed; aryl pyridine preparation; diaryl ketone intramol decarbonylative coupling cobalt catalyzed, Synthetic Route of C11H9N.

A cobalt-N-heterocyclic carbene catalytic systems for the intramol. decarbonylative coupling through the chelation-assisted C-C bond cleavage of acylindoles and diarylketones was reported. The reaction tolerated a wide range of functional groups such as alkyl, aryl and heteroaryl groups, giving the decarbonylative products in moderate to excellent yields. This transformation involved the cleavage of two C-C bonds and formation of a new C-C bond without the use of noble metals, thus reinforcing the potential application of decarbonylation as an effective tool for C-C bond formation.

The article 《Cobalt-catalyzed intramolecular decarbonylative coupling of acylindoles and diarylketones through the cleavage of C-C bonds》 also mentions many details about this compound(1008-89-5)Synthetic Route of C11H9N, you can pay attention to it or contacet with the author([email protected]; [email protected]; [email protected]; [email protected]) to get more information.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

HPLC of Formula: 2208-59-5. 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: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole, is researched, Molecular C12H9N3, CAS is 2208-59-5, about Prototropic equilibria of 2-pyridylbenzimidazoles in aqueous solution. Author is Novo, Mercedes; Mosquera, Manuel; Rodriguez Prieto, Flor.

The acid-base behavior of 2-(n’-pyridyl)benzimidazoles (n’ = 2,3,4) and some Me derivatives was studied in aqueous solution over a wide range of acidity; interesting features with respect to competition in protonation between the benzimidazole N3 and the pyridyl N were observed along with the existence of the corresponding 2 monocations in equilibrium in the case of n’ = 4. The influence of pH on the electronic absorption spectra of all these compounds was studied to identify the ground-state species present as a function of acidity and to obtain the acidity constants of the various prototropic equilibrium occurring in the wide range of acidity studied.

The article 《Prototropic equilibria of 2-pyridylbenzimidazoles in aqueous solution》 also mentions many details about this compound(2208-59-5)HPLC of Formula: 2208-59-5, you can pay attention to it, because details determine success or failure

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Wang, Wanhe; Wu, Ke-Jia; Vellaisamy, Kasipandi; Leung, Chung-Hang; Ma, Dik-Lung published the article 《Peptide-Conjugated Long-Lived Theranostic Imaging for Targeting GRPr in Cancer and Immune Cells》. Keywords: peptide conjugate theranostic imaging GRPr cancer immune cell; gastrin-releasing peptide receptor (GRPr); peptide-conjugated transition-metal complexes; theranostic agents; time-resolved emission spectroscopy.They researched the compound: 2-Phenylpyridine( cas:1008-89-5 ).Name: 2-Phenylpyridine. 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:1008-89-5) here.

Gastrin-releasing peptide receptor (GRPr) plays proliferative and inflammatory roles in living systems. Here, the authors report a highly selective GRPr antagonist (JMV594)-tethered iridium(III) complex for probing GRPr in living cancer cells and immune cells. This probe exhibited desirable photophys. properties and also displayed negligible cytotoxicity, overcoming the inherent toxicity of the iridium(III) complex. Its long emission lifetime enabled its luminescence signal to be readily distinguished from the interfering fluorescence of organic dyes by using a time-resolved technique. This probe selectively visualized living cancer cells via specific binding to GRPr, while it also modulated the function of GRPr on TNF-α secretion in immune cells. To the authors′ knowledge, this is the first peptide-conjugated iridium(III) complex developed as a GRPr bioimaging probe and modulator of GRPr activity. This theranostic agent shows great potential at unmasking the diverse roles of GRPr in living systems.

The article 《Peptide-Conjugated Long-Lived Theranostic Imaging for Targeting GRPr in Cancer and Immune Cells》 also mentions many details about this compound(1008-89-5)Name: 2-Phenylpyridine, you can pay attention to it, because details determine success or failure

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole, is researched, Molecular C12H9N3, CAS is 2208-59-5, about Ultrafast excited state intermolecular proton transfer dynamics of 2-(4′-Pyridyl)benzimidazole inside the nanocavity of reverse micelles.Recommanded Product: 2208-59-5.

The effect of AOT reverse micelle on the excited state prototropism of 2-(4′-pyridyl)benzimidazole (4PBI) have been explored by steady-state and time-resolved fluorescence spectroscopy. It has been observedthat the effect AOT reverse micelle is remarkably different form the CTAB reverse micelle on the photophysics of 4PBI. The ESPT dynamics in AOT reverse micelle approaches to bulk water at higher water concentrationwhereas no ESPT is observedin CTAB reverse micelle even at high w0 value. In AOT reverse micelle, 4PBI can penetrate the interfacial wall and undergo ESPT processes. This process might be initiated by the electrostatic interaction between the neg.charged interface of AOT reverse micelle and pos.charged monocation ca.tautomer, which is selectively stabilized. In addition, no such possibility is observedin CTAB reverse micelle. The ESPT dynamics of dye was found to be slowed down inside the AOT reverse micelle. The observedslow ESPT dynamics in reverse micelle compared to bulk water is mainly attributed to the slow hydrogen-bonded network dynamics of water mols.inside the nanopools of AOT reverse micelle.

After consulting a lot of data, we found that this compound(2208-59-5)Recommanded Product: 2208-59-5 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Phenylpyridine(SMILESS: C1(C2=CC=CC=C2)=NC=CC=C1,cas:1008-89-5) is researched.Computed Properties of C4H10Cl2NiO2. The article 《Inhibition of (dppf)nickel-catalysed Suzuki-Miyaura cross-coupling reactions by α-halo-N-heterocycles》 in relation to this compound, is published in Chemical Science. Let’s take a look at the latest research on this compound (cas:1008-89-5).

A nickel/dppf catalyst system was found to successfully achieve the Suzuki-Miyaura cross-coupling reactions of 3- and 4-chloropyridine and of 6-chloroquinoline but not of 2-chloropyridine or of other α-halo-N-heterocycles. Further investigations revealed that chloropyridines underwent rapid oxidative addition to [Ni(COD)(dppf)] but that α-halo-N-heterocycles led to the formation of stable dimeric nickel species that were catalytically inactive in Suzuki-Miyaura cross-coupling reactions. However, the corresponding Kumada-Tamao-Corriu reactions all proceed readily, which was attributed to more rapid transmetalation of Grignard reagents.

After consulting a lot of data, we found that this compound(1008-89-5)Reference of 2-Phenylpyridine can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recommanded Product: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole, is researched, Molecular C12H9N3, CAS is 2208-59-5, about Syntheses, Structures, and Photoluminescent Properties of Three Silver(I) Coordination Polymers with 2-(4-Pyridyl)benzimidazole. Author is Xia, Chang-Kun; Lu, Can-Zhong; Zhang, Quan-Zheng; He, Xiang; Zhang, Jian-Jun; Wu, Ding-Ming.

Three Ag(I) coordination polymers, [Ag2(PyBIm)2(H2O)2]SO4·H2O (1), [Ag3(PyBIm)3(μ2-SO4)(HSO4)]·3H2O (2), and [Ag2(PyBIm)2(μ2-SO4)]·4H2O (3) [PyBIm = 2-(4-pyridyl)benzimidazole] were synthesized by hydrothermal methods. The Ag(I) atoms in 1-3 are all three coordinated, bridged by PyBIm ligands via NPy and NBIm donor atoms into a 1-dimensional zigzag chain based on the [Ag2(PyBIm)2]2+ unit. The sulfate groups are not coordinated in 1, while they act as bridging ligands in 2 and 3; with the help of μ2-SO4, such zigzag chains are linked into a belt with a ternary-chain structural motif in 2, however, in 3, a two-dimensional network is observed All the complexes display room-temperature photoluminescence in the visible region, which may be assigned to metal-to-ligand charge transfer.

After consulting a lot of data, we found that this compound(2208-59-5)Recommanded Product: 2-(Pyridin-4-yl)-1H-benzo[d]imidazole can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

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 Luminescent humidity sensors based on porous Ln3+-MOFs, published in 2012, which mentions a compound: 2208-59-5, mainly applied to luminescent humidity sensor porous lanthanide metal organic framework, Formula: C12H9N3.

Two new types of luminescence-based Ln3+-MOF humidity sensors were reported. The humidity sensing is successfully realized by controlling O-H oscillators on the Ln3+ emitters through host-guest H-bonding interactions.

After consulting a lot of data, we found that this compound(2208-59-5)Formula: C12H9N3 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles