Tag: M.W:300-400

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, Journal of Coordination Chemistry called Synthesis, spectroscopy, thermal behavior, and X-ray crystal structure of two lead(II) complexes with 4′-(4-tolyl)-2,2′;6′,2”-terpyridine (ttpy), Author is Saghatforoush, Lotfali; Adil, Karim; Sahin, Ertan; Babaei, Somayyeh; Musevi, Seyid Javad, the main research direction is preparation acetate bridged dimeric lead tolylterpyridine complex; crystal structure acetate bridged dimeric lead tolylterpyridine complex; cyclic voltammetry acetate bridged dimeric lead tolylterpyridine complex.COA of Formula: C22H17N3.

Two new dimeric Pb(II) complexes with 4′-(4-tolyl)-2,2′;6′,2”-terpyridine (ttpy), [Pb(ttpy)(μ-AcO)]2(PF6)2 (1) and [Pb(ttpy)(μ-AcO)I]2 (2), were synthesized and characterized by CHN elemental anal., 1H NMR, 13C NMR, IR spectroscopy, and structurally analyzed by x-ray single-crystal diffraction. The thermal stability of these compounds was studied by TGA and DTA. Single crystal x-ray anal. shows that 1 and 2 are dimeric units with Pb-(μ-AcO)2-Pb-type bridging, and the coordination number in 1 is six and in 2 is seven. The arrangement of donors suggests a gap in the coordination geometry around lead, possibly occupied by stereo-active lone pair of electrons on Pb(II), so the coordination sphere is hemidirected. Also, dimeric units are connected by a network of hydrogen bonds and π-π stacking as well. Electrochem. properties of free ligand and complexes were studied in the presence of tetra-Bu ammonium perchlorate as supporting electrolyte and by using a glassy carbon electrode. Both lead complexes show irreversible Pb(II) oxidation Cyclic voltammetry indicates that these processes are diffusion-controlled. The data from electrochem. studies show that the total limiting current of each of the studied complexes corresponds to two-electron transfer.

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

Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine. 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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Mitochondrial Dynamics Tracking with Two-Photon Phosphorescent Terpyridyl Iridium(III) Complexes. Author is Huang, Huaiyi; Zhang, Pingyu; Qiu, Kangqiang; Huang, Juanjuan; Chen, Yu; Ji, Liangnian; Chao, Hui.

Mitochondrial dynamics, including fission and fusion, control the morphol. and function of mitochondria, and disruption of mitochondrial dynamics leads to Parkinson′s disease, Alzheimer′s disease, metabolic diseases, and cancers. Currently, many types of com. mitochondria probes are available, but high excitation energy and low photo-stability render them unsuitable for tracking mitochondrial dynamics in living cells. Therefore, mitochondrial targeting agents that exhibit superior anti-photo-bleaching ability, deep tissue penetration and intrinsically high three-dimensional resolutions are urgently needed. Two-photon-excited compounds that use low-energy near-IR excitation lasers have emerged as non-invasive tools for cell imaging. In this work, terpyridyl cyclometalated Ir(III) complexes (Ir1-Ir3) are demonstrated as one- and two-photon phosphorescent probes for real-time imaging and tracking of mitochondrial morphol. changes in living cells.

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Towards ordered architectures: self-assembly and stepwise procedures to the hexameric metallomacrocycles [arylbis(terpyridinyl)6FeII6-n-RuIIn] (n = 0, 2, 3, 5), the main research direction is iron ruthenium arylbisterpyridinyl hexameric heterometallomacrocycle preparation self assembly electrochem.Formula: C22H17N3.

Hexameric metallomacrocycles [arylbis(terpyridinyl)6FeII6-n-RuIIn] (n = 0, 2, 3, 5) are a new class of ordered rigid-macromols. which possess unique structural, electronic, and phys. characteristics. Directed- and self-assembly methods for the construction of these stable bis(terpyridine)-based materials were studied by using both FeII and RuII as the coordinating metals. These heterometallomacrocycles and their homocounterparts are structurally compared, and their attendant electrochem. properties are analyzed and evaluated. These studies demonstrate the potential to create stable, nanoscale, doughnut-shaped, mol. assemblies with envisioned ramifications for energy storage and release, as well as nanoscale mol. electronic and magnetic devices.

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

Computed Properties of C22H17N3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Synthesis and Characterization of Two Copper (II) Complexes of 4′-tolyl-2,2′:6′,2”-Terpyridine and Simultaneous Detection and Separation of [Cu(ttpy)(NO3)2] and CuO by Capillary Zone Electrophoresis Method. Author is Saghatforoush, Lotf Ali; Sahin, Ertan; Mehdizadeh, Robabeh; Hasanzadeh, Mohammad; Sanati, Soheila; Musevi, Seyed Javad.

A simple synthetic method has been used to prepare copper(II) complexes of 4′-tolyl-2,2′:6′,2”-terpyridine (ttpy) ligand, [Cu(ttpy)(NO3)2] (1) and [Cu2(ttpy)(ClO4)4]n (2), in good yields. Also capillary zone electrophoresis (CZE) method was used for simultaneous detection and separation of complex 1 and CuO obtained from its calcination.

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

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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about New starburst metallodendrimers based on octa(diphenylphosphino)-functionalized silsesquioxane cores.Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine.

Surface-modified starburst dendrimers were prepared by reaction of terpyridine-functionalized polyether monodendrons with an oligomeric polyhedral silsesquioxane (POSS) core. Subsequent reaction of these starburst dendrimers with ruthenium (II)-based precursors affords starburst metallodendrimers. These new dendrimers were characterized using a combination of mass spectral (MALDI-TOF, ESI, and FAB/MS) and NMR (1H, 13C, and 31P{1H}) analyses. Other characterization methods include photophys. (absorption, emission, excited-state lifetime, and quantum yield) and electrochem. (cyclic and square wave voltammetric) analyses. Photophys. data indicate that there is no intramol. excited-state quenching even in the generation 3 metallodendrimer, which possesses 32 ruthenium (II) centers. Electrochem. studies reveal the presence of charge trapping effects, as well as ligand-centered and metal-centered redox couples.

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

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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about New starburst metallodendrimers based on octa(diphenylphosphino)-functionalized silsesquioxane cores.Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine.

Surface-modified starburst dendrimers were prepared by reaction of terpyridine-functionalized polyether monodendrons with an oligomeric polyhedral silsesquioxane (POSS) core. Subsequent reaction of these starburst dendrimers with ruthenium (II)-based precursors affords starburst metallodendrimers. These new dendrimers were characterized using a combination of mass spectral (MALDI-TOF, ESI, and FAB/MS) and NMR (1H, 13C, and 31P{1H}) analyses. Other characterization methods include photophys. (absorption, emission, excited-state lifetime, and quantum yield) and electrochem. (cyclic and square wave voltammetric) analyses. Photophys. data indicate that there is no intramol. excited-state quenching even in the generation 3 metallodendrimer, which possesses 32 ruthenium (II) centers. Electrochem. studies reveal the presence of charge trapping effects, as well as ligand-centered and metal-centered redox couples.

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

Collin, Jean Paul; Heitz, Valerie; Sauvage, Jean Pierre 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 ).COA of 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.

Cyclocondensation of diethyldimethylpyrrylmethane with terpyridinylbenzaldehyde followed by oxidation of the porphyrinogen gave terpyridinylphenylporphyrin I. The complexation of I with (4′-(p-tolyl)-2,2′,6′,2”-terpyridine)ruthenium trichloride was also examined

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

Recommanded Product: 4-(p-Tolyl)-2,2:6,2-terpyridine. 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: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Luminescent platinum(II) complexes. Electronic spectroscopy of platinum(II) complexes of 2,2′:6′,2”-terpyridine (terpy) and p-substituted phenylterpyridines and crystal structure of [Pt(terpy)Cl][CF3SO3]. Author is Yip, Hon Kay; Cheng, Luk Ki; Cheung, Kung Kai; Che, Chi Ming.

[Pt(terpy)L]n+ (terpy = 2,2′:6′,2”-terpyridine; L = Cl, Br, I, N3, SCN-, n = 1; L’ = NH3, n = 2) were prepared and their spectroscopic and emission properties studied. Absorption bands are found at 300-350 and 370-450 nm, which are assigned to the intraligand and metal-to-ligand charge-transfer (MLCT) transitions, resp. [Pt{4′-(p-RC6H4)terpy}Cl]ClO4 (R = MeO, Me, Br, CN) were prepared by the reaction of K2[PtCl4] with 4′-(p-RC6H4)terpy in H2O-MeCN. Unlike [Pt(terpy)L’]n+ which show emission in the solid state only, [Pt{4′-(p-RC6H4)terpy}Cl]+ display 3MLCT emission in fluid solution at room temperature The crystal structure of [Pt(terpy)Cl][CF3SO3] was determined: monoclinic, space group P21/n, a 13.808(4), b 6.873(1), c 19.477(5) Å, β 105.54(2)°, Z = 4, R = 0.028, R’ = 0.034. In the unit cell, 2 [Pt(terpy)Cl]+ ions stack in a head-to-tail fashion with an intermol. Pt…Pt distance of 3.329(1) Å.

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

Application of 89972-77-0. 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 Synthesis and optical properties of two 2,2′: 6′,2”-Terpyridyl-based two-photon initiators. Author is Hu, Zhang-Jun; Yang, Jia-Xiang; Tian, Yu-Peng; Zhou, Hong-Ping; Tao, Xu-Tang; Xu, Gui-Bao; Yu, Wen-Tao; Yu, Xiao-Qiang; Jiang, Min-Hua.

Two donor-π-acceptor (D-π-A) type 2,2′: 6′,2”-terpyridyl-based organic heterocyclic mols. have been efficiently synthesized via solvent-free Wittig reactions in good yields. One crystal structure of them was determined by single crystal x-ray diffraction determination The two compounds exhibit sensitive single-photon-excited fluorescence (SPEF) emission with high fluorescence quantum yields and long lifetimes. The two-photon-excited fluorescence (TPEF), two-photon absorption (TPA) cross-sections and two-photon initiation polymerization (TPIP) microfabrication experiments have been investigated. Exptl. results confirm that they are effective organic two-photon photopolymerization initiators.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine(SMILESS: CC1=CC=C(C2=CC(C3=NC=CC=C3)=NC(C4=NC=CC=C4)=C2)C=C1,cas:89972-77-0) is researched.Synthetic Route of C10H16O4. The article 《A ternary memory module using low-voltage control over optical properties of metal-polypyridyl monolayers》 in relation to this compound, is published in Chemical Communications (Cambridge, United Kingdom). Let’s take a look at the latest research on this compound (cas:89972-77-0).

A ternary memory module was designed as a function of precise voltage command. The monolayer based module displays perpetual stability and nonhysteretic reversibility for multiple scans (102). Ternary-state readout provides a vision to integrate the next generation of smart electrooptical devices viable for multi-state memory.

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