Tag: M.W:300-400

Recommanded Product: 4-(p-Tolyl)-2,2:6,2-terpyridine. 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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Inductive influence of 4′-terpyridyl substituents on redox and spin state properties of iron(II) and cobalt(II) bis-terpyridyl complexes. Author is Chambers, Joseph; Eaves, Bryan; Parker, Danny; Claxton, Ronald; Ray, Partha S.; Slattery, Spencer J..

Iron and cobalt bis-terpyridine (terpy) complexes were prepared [M(R-terpy)2](PF6)2, where M represents Co(II) and Fe(II), and R is the following terpyridine substituents in order of increasing electron-withdrawing behavior [(C4H8)N, BuNH, HO, MeO, p-MeC6H4, H, Cl, MeSO, MeSO2]. The complexes were prepared to investigate the extent of redox and spin state control that is attainable by simply varying the electron donating/withdrawing influence using a single substituent site on the terpyridine ligand. Cyclic voltammetry was used to assess the substituents influence on the M(III/II) redox couple. A plot of the M(III/II) redox potential (E1/2) vs. the electron donating/withdrawing nature of the substituents (Hammett constants), shows a strong linear trend for both metals; however, the substituents have a stronger influence on the Fe(III/II) couple. Solution magnetic susceptibility measurements at room temperature were carried out using standard NMR methodol. (modified Evans method) where all of the Fe(II) complexes exhibited a diamagnetic, low spin (S = 0) behavior. In the cobalt series where R = H for [Co(R-terpy)2]2+, the complex is known to be near the spin cross-over where the room temperature effective magnetic moment (μeff) in solution is ≈3.1 μB; however, the μeff varies between 2.7 and 4.1 μB depending on the R-substituent.

There are many compounds similar to this compound(89972-77-0)Recommanded Product: 4-(p-Tolyl)-2,2:6,2-terpyridine. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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.Bhaumik, Chanchal; Das, Shyamal; Saha, Debasish; Dutta, Supriya; Baitalik, Sujoy researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Application In Synthesis of 4-(p-Tolyl)-2,2:6,2-terpyridine.They published the article 《Synthesis, Characterization, Photophysical, and Anion-Binding Studies of Luminescent Heteroleptic Bis-Tridentate Ruthenium(II) Complexes Based on 2,6-Bis(Benzimidazol-2-yl)Pyridine and 4′-Substituted 2,2′:6′,2” Terpyridine Derivatives》 about this compound( cas:89972-77-0 ) in Inorganic Chemistry. Keywords: ruthenium bisbenzimidazolylpyridine substituted terpyridine complex preparation crystal structure; cyclic voltammetry ruthenium bisbenzimidazolylpyridine substituted terpyridine complex; luminescence ruthenium bisbenzimidazolylpyridine substituted terpyridine complex; anion receptor sensor ruthenium bisbenzimidazolylpyridine substituted terpyridine complex. We’ll tell you more about this compound (cas:89972-77-0).

A series of heteroleptic tridentate ruthenium(II) complexes of composition [(H2pbbzim)Ru(tpy-X)](PF6)2 (1-7), where H2pbbzim = 2,6-bis(benzimidazole-2-yl)pyridine and tpy-X = 4′-substituted terpyridine ligands with X = H, p-methylphenyl (PhCH3), p-bromomethylphenyl (PhCH2Br), p-dibromomethylphenyl (PhCHBr2), p-cyanomethylphenyl (PhCH2CN), p-triphenylphosphonium methylphenyl bromide (PhCH2PPh3Br), and 4′-formylphenyl (PhCHO) groups, was synthesized and characterized by using standard anal. and spectroscopic techniques. These compounds were designed to increase the excited-state lifetime of ruthenium(II) bis(terpyridine)-type complexes. The x-ray crystal structure of a representative compound 2, which crystallized with monoclinic space group P2(1)/c, was determined The absorption spectra, redox behavior, and luminescence properties of the ruthenium(II) complexes were thoroughly studied. All of the complexes display moderately strong luminescence at room temperature with lifetimes at 10-58 ns. Correlations were obtained for the Hammett σp parameter with their MLCT emission energies, lifetimes, redox potentials, proton NMR chem. shifts, etc. The anion binding properties of all the complexes as well as the parent ligand H2pbbzim were studied in acetonitrile using absorption, emission, and 1H NMR spectral studies, and the metalloreceptors act as sensors for F-, AcO-, and to some extent H2PO4-. At a relatively lower concentration of anions, a 1:1 H-bonded adduct is formed; however, in the presence of an excess of anions, stepwise deprotonation of the two benzimidazole N-H fragments occurs, an event which is signaled by the development of vivid colors visible with the naked eye. The receptor-anion binding constants were evaluated. Cyclic voltammetric (CV) measurements carried out in acetonitrile-dimethylformamide (9:1) provided evidence in favor of anion (F-, AcO-) concentration dependent electrochem. responses, enabling 1-7 to act as suitable electrochem. sensors for F- and AcO- ions.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Application In Synthesis of 4-(p-Tolyl)-2,2:6,2-terpyridine, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Li, Yu Yang; Wei, Zhen Hong; Ng, Seik Weng published an article about the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0,SMILESS:CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1 ).Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine. 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:89972-77-0) through the article.

The title compound, [AgCd(NCS)3(C22H17N3)]n, is a heteroatom ribbon coordination polymer. The central Cd atom is chelated by the 4′-p-tolyl-2,2′:6′,2”-terpyridine ligand and is coordinated by the N atoms of three thiocyanate ions in an octahedral geometry whereas the Ag atom is coordinated by the four S atoms of four thiocyanate ions in a distorted tetrahedral geometry. Of the three thiocyanate ions, one functions in a μ2-bridging mode and two in a μ3-bridging mode. The ribbon coordination polymer propagates along the a-axis.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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, Article, Inorganic Chemistry called Electron Donor-Acceptor Dyads Based on Ruthenium(II) Bipyridine and Terpyridine Complexes Bound to Naphthalenediimide, Author is Johansson, Olof; Borgstroem, Magnus; Lomoth, Reiner; Palmblad, Magnus; Bergquist, Jonas; Hammarstroem, Leif; Sun, Licheng; Kermark, Bjoern, which mentions a compound: 89972-77-0, SMILESS is CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1, Molecular C22H17N3, HPLC of Formula: 89972-77-0.

Two series of photosensitizer-electron acceptor complexes were synthesized and fully characterized: ruthenium(II) tris(bipyridine) {[RuII(bpy)2(bpy-X-NDI)], where X = -CH2-, tolylene, or phenylene, bpy is 2,2′-bipyridine, and NDI is naphthalenediimide} and ruthenium(II) bis(terpyridine) {[RuII(Y-tpy)(tpy-X-NDI)], where Y = H or tolyl and X = tolylene or phenylene, and tpy = 2,2′:6′,2”-terpyridine}. The complexes were studied by cyclic and differential pulse voltammetry and by steady state and time-resolved absorption and emission techniques. Rates for forward and backward electron transfer were investigated, following photoexcitation of the ruthenium(II) polypyridine moiety. The terpyridine complexes were only marginally affected by the linked diimide unit, and no electron transfer was observed In the bipyridine complexes the authors achieved efficient charge separation For the complexes containing a Ph link between the ruthenium(II) and diimide moieties, the results suggest a biphasic forward electron-transfer reaction, in which 20% of the charge-separated state was formed via population of the naphthalenediimide triplet state.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)HPLC of Formula: 89972-77-0, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Lombard, Jean; Lepretre, Jean-Claude; Chauvin, Jerome; Collomb, Marie-Noelle; Deronzier, Alain published an article about the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0,SMILESS:CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1 ).Formula: C22H17N3. 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:89972-77-0) through the article.

A trinuclear [{RuII(bpy)2(bpy-terpy)}2FeII]6+ complex (I) in which a FeII-bis-terpyridine-like center is covalently linked to two RuII-tris-bipyridine-like moieties by a bridging bipyridine-terpyridine ligand has been synthesized and characterized. Its electrochem., photophys. and photochem. properties have been investigated in CH3CN and compared with those of mononuclear model complexes. The cyclic voltammetry of (I) exhibits, in the pos. region, two successive reversible oxidation processes, corresponding to the FeIII/FeII and RuIII/RuII redox couples. These systems are clearly separated (ΔE1/2 = 160 mV), demonstrating the lack of an electronic connection between the two subunits. The two oxidized forms of the complex, [{RuII(bpy)2(bpy-terpy)}2FeIII]7+ and [{RuIII(bpy)2(terpy-bpy)}2FeIII]9+, obtained after two successive exhaustive electrolyzes, are stable. The complex I is poorly luminescent, indicating that the covalent linkage of the RuII-tris-bipyridine to the FeII-bis-terpyridine subunit leads to a strong quenching of the RuII* excited state by energy transfer to the FeII center. Luminescence lifetime experiments show that the process occurs within 6 ns. The nature of the energy transfer process is discussed and an intramol. energy exchange is proposed as a preferable deactivation pathway. Nevertheless this energy transfer can be efficiently quenched by an electron transfer process in the presence of a large excess of the 4-bromophenyldiazonium cation, playing the role of a sacrificial oxidant. Finally complete photoinduced oxidation of (I) has been performed by continuous photolysis experiments in the presence of a large excess of this sacrificial oxidant. The comparison with a mixture of the corresponding mononuclear model complexes has been made.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Formula: C22H17N3, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Wang, Jianhua; Hanan, Garry S. published an article about the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0,SMILESS:CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1 ).Product Details of 89972-77-0. 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:89972-77-0) through the article.

A facile one-pot synthesis of 4′-aryl-2,2′:6′,2”-terpyridines from aryl aldehydes and 2-acetylpyridine is presented. The synthesis of terpyridines incorporating sterically hindered aryl groups, such as the 9-anthracenyl group, can also be readily synthesized using this method.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Product Details of 89972-77-0, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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.Xiang, Xian-Ming; Qian, Dong-Jin; Li, Fu-You; Chen, Hai-Tao; Liu, Hong-Guo; Huang, Wei; Feng, Xu-Sheng researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Synthetic Route of C22H17N3.They published the article 《Fabrication of europium complexes with 4′-(4-methylphenyl)-2,2′:6′,2”-terpyridine and 4,4′-dinonyl-2,2′-dipyridyl at the air-water interface and their emission properties in Langmuir-Blodgett films》 about this compound( cas:89972-77-0 ) in Colloids and Surfaces, A: Physicochemical and Engineering Aspects. Keywords: europium complex methylphenyl terpyridine Langmuir Blodgett film fluorescence; dinonyl dipyridyl europium complex Langmuir Blodgett film fluorescence. We’ll tell you more about this compound (cas:89972-77-0).

Ternary Eu complexes were formed at the air-H2O interface mediated by monolayers of 4,4′-dinonyl-2,2′-dipyridyl (DNDPy) and 4′-(4-methylphenyl)-2,2′:6′,2”-terpyridine (MPTPy). A saturated Eu(TTA)3 (TTA: theonyltrifluoroacetone) aqueous solution was used as subphase, on the surface of which condensed DNDPy and MPTPy monolayers could be stabilized. The DNDPy-/MPTPy-Eu(TTA)3 layers were transferred onto either hydrophobic or hydrophilic substrate surfaces by Langmuir-Blodgett (LB) method. Fluorescence spectra showed several sharp peaks corresponding to Eu3+ emissions from 5D1 → 7F1 (535 nm) and 5D0 → 7F0,1,2,3 (580, 595, 612 and 650 nm). A relative stronger emission from 5D1 → 7F1 to that from 5D0 → 7F2 was recorded for the LB films of DNDPy-Eu(TTA)3 complex. Compared with that in solution, longer fluorescence lifetime was observed for the complexes in the LB films.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Synthetic Route of C22H17N3, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 89972-77-0, is researched, SMILESS is CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1, Molecular C22H17N3Journal, Crystal Growth & Design called Unusual 2D → 3D Polycatenane Frameworks Based on 1D → 2D Interdigitated Layers: From Single Crystals to Submicrometer Fibers with Enhanced UV Photocatalytic Degradation Performances, Author is Guo, Jiao; Ma, Jian-Fang; Li, Jun-Jie; Yang, Jin; Xing, Shuang-Xi, the main research direction is crystal structure cobalt manganese zinc cadmium tolylterpyridine tetracarboxylate; transition metal terpyridine carboxylate MOF preparation photocatalytic activity; methylene blue photocatalytic degradation catalyzed transition metal tolylterpyridine tetracarboxylate.HPLC of Formula: 89972-77-0.

Four unusual isomorphous metal-organic frameworks, [M2(L1)(L2)2] (M = Co for 1, Mn for 2, Zn for 3, and Cd for 4), where H4L1 = tetrakis[4-(carboxyphenyl)-oxamethyl]methane acid and L2 = 4-tolyl-2,2′:6′,2”-terpyridine, were synthesized under hydrothermal conditions. Their structures were determined by single-crystal x-ray diffraction analyses and further characterized by IR spectra, elemental analyses, powder X-ray diffraction, UV-visible absorption spectra, and optical energy gaps. In 1-4, the metal atoms are linked by the L1 anions to yield a chain with a loop. Every loop of each chain is penetrated by two L2 ligand rods from the two nearest chains, resulting in an unusual 1-dimensional → 2-dimensional interdigitated network. In the 2-dimensional interdigitated network, there exist weak π-π interactions between pyridyl groups of L2 ligands. If the π-π interactions are regarded as linkers, the 2-dimensional interdigitated network belongs to an uneven (3,4)-connected layer. Also, each individual (3,4)-connected layer is polycatenated with an infinite number of other perpendicular layers, yielding an unusual 2-dimensional → 3-dimensional polycatenane framework. The luminescent properties of compounds 3 and 4 were studied. Compounds 1-4 exhibit photocatalytic activities for MB degradation under UV irradiation Submicrometer fiber 1′ shows high photocatalytic efficiency for MB degradation with respect to its corresponding macroscaled crystalline 1.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)HPLC of Formula: 89972-77-0, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine. 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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Self-assembly of nanocrystalline tetra-terpyridine complexes: from molecules to mesoscopic objects.

We report the properties of a shape-persistent tetra-terpyridine ligand whose coordination to transition metal ions guides its three-dimensional self-assembly in two steps: at first, nanoscale objects form, which with time, self-assemble into micrometer structures. This work highlights the potential for control of the mol. self-assembly of mols. on the nanoscale, and the successive self-assembly of the formed supramol. nanosystems to yield mesoscopic objects.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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 DNA binding properties of novel cytotoxic gold(III) complexes of terpyridine ligands: the impact of steric and electrostatic effects, published in 2006-09-30, which mentions a compound: 89972-77-0, mainly applied to gold terpyridine functionalized preparation antitumor activity DNA binding; steric effect DNA binding gold complex functionalized terpyridine, Formula: C22H17N3.

Four Au(III) complexes of terpyridine derivatives In+ (R = H, 2-naphthyloxy, n = 2; R = PPh3, n = 3; R = NHCH2CH2SO3Na, n = 2) were synthesized and characterized by spectroscopic methods. In vitro data demonstrated that all of them showed higher cytotoxicity than cisplatin against the human nonsmall-cell lung cancer cell line (A-549), the human stomach carcinoma cell line (SGC-7901), the human cervix carcinoma cell line (HELA), the human colon carcinoma cell line (HCT-116), the human liver carcinoma cell line (BEL-7402), the murine leukemia cell line (P-388) and the human acute promyelocytic leukemia cell line (HL-60). Complex I (R = PPh3) exhibits the highest activity, with growth inhibition rates of over 80% at 10-8 mol L-1 against the A-549, HCT-116 and HELA tumor cell lines. The free ligands are also very cytotoxic against the cell lines tested. Complexes I are stable in aqueous solution for 2 days in the presence of the biol. reducing agent glutathione. The inductively coupled plasma mass spectrometry data showed that DNA isolated from cells treated with complexes I (R = H, PPh3) contained Au with Au-to-nucleotide ratios of ∼1:6,400 and 1:4,900, resp. Fluorescence titration, UV and CD analyses proved that the steric and electrostatic effects of the ligand remarkably influence the interactions of their Au(III) complexes with DNA. The DNA binding ability of the complexes was correlated with their cytotoxicity, which could potentially provide a new rationale for the future design of terpyridine-based metal complexes with antitumor potential.

In addition to the literature in the link below, there is a lot of literature about this compound(4-(p-Tolyl)-2,2:6,2-terpyridine)Formula: C22H17N3, illustrating the importance and wide applicability of this compound(89972-77-0).

Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI