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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ) is researched.Product Details of 89972-77-0.Wang, Song; Li, Bao-Ding; Wang, Rui-Ying; Wu, Ben-Lai; Zhang, Hong-Yun published the article 《Synthesis and Crystal Structure of A Novel Mixed-valent Tri-copper Complex of 4′-p-Tolyl-2,2′:6′,2′-terpyridine》 about this compound( cas:89972-77-0 ) in Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. Keywords: copper tolylterpyridine chloro complex solvothermal preparation crystal structure. Let’s learn more about this compound (cas:89972-77-0).

Two copper complexes of 4′-p-tolyl-2,2′:6′,2′-terpyridine (ttpy), namely, monomer [CuII(ttpy)Cl2] (1) and trinuclear complex [CuII(ttpy)Cl2]. [CuIICuI(ttpy)Cl3] (2), were prepared through solvothermal synthesis and structurally determined by single crystal x-ray diffraction. Compound 1 obtained by another way before was firstly solvothermally synthesized and structurally studied herein. In 1 metal center Cu2+ ligated by a ttpy mol. and two chloride ions is in a distorted square pyramidal geometry. However, complex 2 is a novel mixed-valent tri-copper complex which contains a monomeric [CuII(ttpy)Cl2] part being very similar to 1, and a mixed-valent chloride-bridged di-nuclear [CuIICuI(ttpy)Cl3] part, presented interesting co-crystallization behavior.

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Metal catalyst and ligand design,
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HPLC of Formula: 89972-77-0. 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 DNA binding property, nuclease activity and cytotoxicity of Zn(II) complexes of terpyridine derivatives. Author is Jiang, Qin; Zhu, Jianhui; Zhang, Yangmiao; Xiao, Nan; Guo, Zijian.

Two zinc(II) terpyridine complexes Zn(atpy)2(PF6)2 (1) (atpy = 4′-p-N9′-adeninylmethylphenyl-2,2′:6,2″”-terpyridine) and Zn(ttpy)2(PF6)2 (2) (ttpy = 4′-p-tolyl-2,2′:6,2″”-terpyridine) were synthesized and characterized by elemental anal., 1H NMR and electrospray mass spectrometry. The structure of complex 2 was also determined by x-ray crystallog., which revealed a ZnN6 coordination in an octahedral geometry with two terpyridine acting as equatorial ligands. The CD data showed that complex 1 exhibited an ICD signal at ∼300 nm and induced more evident disturbances on DNA base stacking than complex 2, reflecting the impact of the adenine moiety on DNA binding modes. Complex 1 exhibited higher cleavage activity to supercoiled pUC 19 DNA than complex 2 under aerobic conditions, suggesting a promotional effect of adenine moiety in DNA nuclease ability. Both complexes demonstrated potent in vitro cytotoxicity against a series of human tumor cell lines such as human cervix carcinoma cell line (HeLa), human liver carcinoma cell line (HepG2), human galactophore carcinoma cell line (MCF-7) and human prostate carcinoma cell line (pc-3). The cytotoxicity is approx. 10 times more active than the anticancer drug cisplatin.

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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 From large 3D assembly to highly dispersed spherical assembly: weak and strong coordination mediated self-aggregation of Au colloids, the main research direction is self assembly gold nanoparticle weak strong coordination bond.Reference of 4-(p-Tolyl)-2,2:6,2-terpyridine.

Distinctly different 3D assemblies of ∼1.6 nm Au nanoparticles are constructed based on weak and strong coordination strategies. Reduction of KAuCl4 with NaBH4 in the presence of newly-synthesized 4-(4-phenylmethanethiol)-2,2′:6′,2”-terpyridine (1) yields functionalized Au nanoparticles which assemble in situ into large 3D aggregates via weak coordination between alkali metal ions and terpyridine attached to separated particles. These assemblies are disassembled into individual nanoparticles via addition of DMF solvent and further reassembled into highly dispersed 3D spherical nanostructures via addition of Co2+ (strong coordination with 1). Wide and small angle XRD measurements show that the assemblies are formed from small Au nanoparticles, consistent with TEM results. It is significant that the large aggregates formed in situ can be directly transformed into nearly monodispersed 3D spherical assemblies via strong coordination (with Co2+), presenting the first example of a direct transformation of one 3D nanonetwork into another distinctly different 3D nanonetwork. The controlled assembly and disassembly processes are accompanied by distinct shifts in the surface plasmon resonance.

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Hu, Zhang-Jun; Yang, Jia-Xiang; Tian, Yu-Peng; Tao, Xu-Tang; Tian, Lei; Zhou, Hong-Ping; Xu, Gui-Bao; Yu, Wen-Tao; Yan, Yun-Xing; Sun, Yuan-Hong; Wang, Chuan-Kui; Yu, Xiao-Qiang; Jiang, Min-Hua 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 ).Computed Properties of 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.

Efficient aqueous-phase aldol condensation, Michael addition, and solvent-free Wittig reactions were successfully employed to synthesize two two-photon initiators 9-ethyl-3-[4-(2,2′:6′,2”-terpyridinyl-4′-yl)styryl]carbazole and 9-{4-[4-(2,2′:6′,2”-terpyridinyl-4′-yl)styryl]phenyl}carbazole. These two initiators with carbazolyl moiety attached to 2,2′:6′,2”-terpyridine present D-π-A-type framework, where A is a π-deficient terpyridine ring. The crystal structures were determined by single-crystal X-ray diffraction determination The exptl. results confirmed that the two initiators have sensitive single-photon-excited fluorescence (SPEF) and two-photon-excited fluorescence (TPEF) properties. The exptl. and theor. two-photon absorption (TPA) cross-sections were investigated. Two-photon initiation polymerization (TPIP) microfabrication experiments were carried out, and possible polymerization mechanisms are discussed based on the theor. evaluation.

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Product Details of 89972-77-0. 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 Functional polycationic and neutral starburst dendrimers with silsesquioxane cores.

Starburst dendrimers featuring iodo- or phosphonate- silsesquioxane cores and terpyridyl end groups were prepared The terpyridyl terminal groups allow for future incorporation of transition metal centers. Silsesquioxane-based starburst dendrimers with mol. weights from 3332 to 15985 g/mol were prepared The monodendrons and silsesquioxane-based dendrimers were studied using a combination of NMR, ESI/MS, FAB/MS, MALDI-TOF/MS, and GPC.

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Romain, Sophie; Duboc, Carole; Neese, Frank; Riviere, Eric; Hanton, Lyall R.; Blackman, Allan G.; Philouze, Christian; Lepretre, Jean-Claude; Deronzier, Alain; Collomb, Marie-Noelle published the article 《An unusual stable mononuclear MnIII bis-terpyridine complex exhibiting Jahn-Teller compression: electrochemical synthesis, physical characterisation and theoretical study》. Keywords: trivalent manganese tolylterpyridine complex electrooxidative preparation Jahn Teller compression; crystal structure manganese tolylterpyridine complex; zero field splitting manganese tolylterpyridine complex.They researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Category: catalyst-ligand. 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:89972-77-0) here.

The mononuclear Mn bis-terpyridine complex [Mn(tolyl-terpy)2](X)3 (1(X)3; X = BF4, ClO4, PF6; tolyl-terpy = 4′-(4-methylphenyl)-2,2′:6′,2”-terpyridine), containing Mn in the unusual +III oxidation state, was isolated and characterized. The 13+ ion is a rare example of a mononuclear MnIII complex stabilized solely by neutral N ligands. Complex 13+ is obtained by electrochem. oxidation of the corresponding MnII compound 12+ in anhydrous MeCN. Under these conditions the cyclic voltammogram of 12+ exhibits not only the known MnII/MnIII oxidation at E1/2 = +0.91 V vs. Ag/Ag+ (+1.21 V vs. SCE) but also a 2nd metal-based oxidation process corresponding to MnIII/MnIV at E1/2 = +1.63 V (+1.93 V vs. SCE). Single crystals of 1(PF6)3·2MeCN were obtained by an electrocrystn. procedure. X-ray anal. unambiguously revealed its tetragonally compressed octahedral geometry and high-spin character. The electronic properties of 13+ were studied in detail by magnetic measurements and theor. calculations, from which a D value of +4.82 cm-1 was precisely determined D. functional and complete active space SCF ab initio calculations both correctly predict a pos. sign of D, in agreement with the compressed tetragonal distortion observed in the x-ray structure of 1(PF6)3·2MeCN. The different contributions to D were calculated, and (1) the spin-orbit coupling part (+2.593 cm-1) is predominant compared to the spin-spin interaction (+1.075 cm-1) and (2) the excited triplet states make the dominant contribution to the total D value.

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SDS of cas: 89972-77-0. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about Synthesis, crystal structure and thermal properties of Cd(II) and Hg(II) terpyridine based compounds. Author is Saghatforoush, Lotfali; Pourmohsen, Mehrdad; Asgari, Parvin.

Cd(II) and Hg(II) compounds of 4′-(4-methylphenyl)-2,2′:6′,2”-terpyridine (Mephtpy), [Cd(Mephtpy)I2] and [Hg(Mephtpy)I2], were synthesized and characterized by CHN elemental anal., FTIR, 1H and 13C NMR, thermal anal. and analyzed structurally by x-ray single-crystal diffraction. X-ray anal. showed that the coordination number in the complexes were the same with an N3I2 coordination sphere. Both metal ions adopt a distorted square-pyramidal geometry. The thermogravimetric analyses showed that the complexes were stable up to 365 and 340°, resp.

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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.Farran, Rajaa; Le-Quang, Long; Mouesca, Jean-Marie; Maurel, Vincent; Jouvenot, Damien; Loiseau, Frederique; Deronzier, Alain; Chauvin, Jerome researched the compound: 4-(p-Tolyl)-2,2:6,2-terpyridine( cas:89972-77-0 ).Application of 89972-77-0.They published the article 《[Cr(ttpy)2]3+ as a multi-electron reservoir for photoinduced charge accumulation》 about this compound( cas:89972-77-0 ) in Dalton Transactions. Keywords: chromium ruthenium polypyridyl photoinduced electron transfer. We’ll tell you more about this compound (cas:89972-77-0).

[Cr(ttpy)2]3+ (ttpy = 4′-(4-methylphenyl)-2,2′:6,2′′-terpyridine) exhibits rich electrochem. and photophys. properties. Cyclic voltammetry performed in CH3CN shows in the cathodic part the presence of three one-electron reversible systems at -0.47, -0.85 and -1.35 V vs. Ag/AgNO3 10-2 M. These systems are attributed to the reduction of the terpyridine ligands with a partial delocalization of the charge on the tolyl for the last reduction event. The three different reduced species were generated by exhaustive electrolysis and characterized by EPR and UV-visible spectroscopy; DFT calculations were performed to locate the spin d. of the electrons added during the reduction Visible light irradiation of [Cr(ttpy)2]3+ induces the population of a luminescent metal-centered excited state with a lifetime of 270 ns in deoxygenated CH3CN. This excited state can be quenched by an electron transfer process with triphenylphosphine (PPh3) or triethanolamine (TEOA). Using TEOA as a sacrificial electron donor, the doubly reduced species (i.e.[Cr(ttpy)2] +) can be generated under continuous irradiation In the presence of [Ru(bpy)3]2+ as an addnl. photosensitizer, the photoreduction of [Cr(ttpy)2]3+ towards [Cr(ttpy)2]+ is accelerated. The trinuclear [{RuII(bpy)2(bpy-O-tpy)}2CrIII]7+ complex ([Ru2Cr]7+) in which a CrIII-bis-terpyridine center is covalently linked to two RuII-tris-bipyridine moieties by oxo bridges has been synthesized. Its electrochem., photophys. and photochem. properties were investigated in deoxygenated CH3CN. Cyclic voltammetry indicates only a poor electronic communication between the different subunits, whereas luminescence experiments show a strong quenching of the RuII* excited state by an intramol. process. Continuous irradiation of [Ru2Cr]7+ under visible conditions in the presence of TEOA leads to [Ru2Cr]4+ where three electrons are stored on the [Cr(ttpy)] subunit.

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HPLC of Formula: 89972-77-0. 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 Surmounting tumor resistance to metallodrugs by co-loading a metal complex and siRNA in nanoparticles. Author is Qiao, Hongzhi; Zhang, Lei; Fang, Dong; Zhu, Zhenzhu; He, Weijiang; Hu, Lihong; Di, Liuqing; Guo, Zijian; Wang, Xiaoyong.

Copper complexes are promising anticancer agents widely studied to overcome tumor resistance to metal-based anticancer drugs. Nevertheless, copper complexes per se encounter drug resistance from time to time. Adenosine-5′-triphosphate (ATP)-responsive nanoparticles containing a copper complex CTND and B-cell lymphoma 2 (Bcl-2) small interfering RNA (siRNA) were constructed to cope with the resistance of cancer cells to the complex. CTND and siRNA can be released from the nanoparticles in cancer cells upon reacting with intracellular ATP. The resistance of B16F10 melanoma cells to CTND was terminated by silencing the cellular Bcl-2 gene via RNA interference, and the therapeutic efficacy was significantly enhanced. The nanoparticles triggered a cellular autophagy that amplified the apoptotic signals, thus revealing a novel mechanism for antagonizing the resistance of copper complexes. In view of the extensive association of Bcl-2 protein with cancer resistance to chemotherapeutics, this strategy may be universally applicable for overcoming the ubiquitous drug resistance to metallodrugs.

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Safety of 4-(p-Tolyl)-2,2:6,2-terpyridine. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 4-(p-Tolyl)-2,2:6,2-terpyridine, is researched, Molecular C22H17N3, CAS is 89972-77-0, about 4′-(4-Methylphenyl)-2,2′:6′,2”-terpyridine. Author is Liu, Han-Guo; Qiu, Yong-Cai; Wu, Jian-Zhong.

There are two crystallog. independent mols. in the asym. unit of the title compound, C22H17N3. In each mol., the three pyridyl groups are nearly coplanar, whereas the tolyl groups are twisted out of the plane of the attached pyridyl rings by ∼28°. The mol. components are assembled through C-H···π and π-π interactions [centroid-centroid distances are 3.677(4) and 3.707(7) Å] into a 1-dimensional chain running in the a-axis direction. Crystallog. data and at. coordinates are given.

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