Category: 12080-32-9

Product Details of 12080-32-9. 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Cyclic metal(oid) clusters control platinum-catalysed hydrosilylation reactions: from soluble to zeolite and MOF catalysts. Author is Rivero-Crespo, Miguel; Oliver-Meseguer, Judit; Kaplonska, Klaudia; Kustrowski, Piotr; Pardo, Emilio; Ceron-Carrasco, Jose Pedro; Leyva-Perez, Antonio.

The Pt-catalyzed addition of silanes to functional groups such as alkenes, alkynes, carbonyls and alcs., i.e. the hydrosilylation reaction, is a fundamental transformation in industrial and academic chem., often claimed as the most important application of Pt catalysts in solution However, the exact nature of the Pt active species and its mechanism of action is not well understood yet, particularly regarding regioselectivity. Here, exptl. and computational studies together with an ad hoc graphical method show that the hydroaddn. of alkynes proceeds through Pt-Si-H clusters of 3-5 atoms (metal(oid) association) in ppm amounts (ppm), which decrease the energy of the transition state and direct the regioselectivity of the reaction. Based on these findings, new extremely-active (ppm) microporous solid catalysts for the hydrosilylation of alkynes, alkenes and alcs. have been developed, paving the way for more environmentally-benign industrial applications.

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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: 12080-32-9, is researched, SMILESS is C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-], Molecular C8H12Cl2PtJournal, Journal of Molecular Structure called Spectroscopic, structural and DFT studies of luminescent Pt(II) and Ag(I) complexes with an asymmetric 2,2′-bipyridine chelating ligand, Author is Yilmaz, Ismail; Acar-Selcuki, Nursel; Coles, Simon J.; Pekdemir, Fatih; Sengul, Abdurrahman, the main research direction is carbomethoxybipyridine preparation platinum silver complexation; crystal mol structure methylcarbomethoxybipyridine platinum silver complex; DFT luminescent platinum silver methylcarbomethoxybipyridine asym bipyridine chelating ligand.Recommanded Product: 12080-32-9.

A new unsym. substituted 2,2′-bipyridine ligand, 5-methyl-5′-carbomethoxy-2,2′-bipyridine (L) was isolated from the dry distillation of the copper(II) complex, mono-aqua-bis(trans-5-methyl-pyridine-2-carboxylato-N,O)copper(II). The ligand was fully characterized. The spectroscopic and single-crystal x-ray diffraction (SCXRD) studies of the coordination compounds of the ligand with platinum(II) and silver(I); cis-Pt(L)Cl2 (1) and [Ag(L)2]PF6 (2), resp. are reported. In 1, the Pt center coordinates to tertiary N atoms of the ligand and two chloride ions to form a neutral square-planar coordination sphere, while in 2, the Ag(I) center is coordinated by two ligands through N atoms to generate a cationic flattened tetrahedron geometry in which two mean planes intersect each other at 50.93°. The pyridine rings are nearly coplanar as revealed by the torsion angle of N2-C7-C6-N1 1.32(5)°. In both complexes, L acts as a chelating ligand through pyridyl N atoms. In 1, the mol. units are stacked in a head-to-tail fashion with a Pt···Pt separation of 3.5 Å. Supramol. self-assembly of the mol. units by extensive intermol. contacts through C-H···Cl and C-H···O between the adjacent units results in an infinite two-dimensional flattened-out herringbone structure in the crystalline state. In 2, the mol. units are interconnected with each other by C-H···O contacts between the adjacent units running parallel to each other. Both complexes are fluorescent in solution and have emission maxima in the UV-Vis regions, which is a very important property for optoelectronic applications. DFT (d. functional theory) and TD-DFT (time-dependent-DFT) calculations were performed at B3LYP/6-311+G(d,p)/LANL2DZ level to explore structural, electronic, and spectroscopic properties to compare with the exptl. results. The MOs were carried out with DFT at the same level.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about The importance of intramolecular conductivity in three dimensional molecular solids, the main research direction is macrocyclic semiconductor preparation crystal structure electron mobility conductivity.Quality Control of Dichloro(1,5-cyclooctadiene)platinum(II).

Recent years have seen tremendous progress towards understanding the relation between the mol. structure and function of organic field effect transistors. The metrics for organic field effect transistors, which are characterized by mobility and the on/off ratio, are known to be enhanced when the intermol. interaction is strong and the intramol. reorganization energy is low. While these requirements are adequate when describing organic field effect transistors with simple and planar aromatic mol. components, they are insufficient for complex building blocks, which have the potential to localize a carrier on the mol. Here, we show that intramol. conductivity can play a role in controlling device characteristics of organic field effect transistors made with macrocycle building blocks. We use two isomeric macrocyclic semiconductors that consist of perylene diimides linked with bithiophenes and find that the trans-linked macrocycle has a higher mobility than the cis-based device. Through a combination of single mol. junction conductance measurements of the components of the macrocycles, control experiments with acyclic counterparts to the macrocycles, and analyses of each of the materials using spectroscopy, electrochem., and d. functional theory, we attribute the difference in electron mobility of the OFETs created with the two isomers to the difference in intramol. conductivity of the two macrocycles.

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Category: alcohols-buliding-blocks. 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Synthesis and structure of thienyl Fischer carbene complexes of PtII for application in alkyne hydrosilylation.

Transmetalation of Group 6 thienylene Fischer carbene complexes to Pt(II) precursors yielded new examples of neutral Pt(II) bisethoxycarbene complexes with either 2-thienyl (T) or 5-thieno[2,3-b]thienylene (TT) carbene substituents. The use of analogous aminocarbene group 6 precursors proceeded to give isomeric Pt(II) product mixtures where the resultant bisaminocarbene ligands displayed different orientations due to restricted rotation around the Pt-aminocarbene bond caused by the sterically demanding TT substituents. The well-defined Pt(II) ethoxycarbene complexes were screened as catalyst precursors in the benchmark hydrosilylation reaction employing phenylacetylene and triethylsilane substrates. Marked selectivity for the β-E isomer (E)-triethyl(styryl)silane was observed, and the (pre)catalysts proved recyclable, active in solvent-free reactions, and displaying a high alkyne functional group tolerance.

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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.Radhakrishna, Latchupatula; Kunchur, Harish S.; Namdeo, Pavan K.; Butcher, Ray J.; Balakrishna, Maravanji S. researched the compound: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9 ).Product Details of 12080-32-9.They published the article 《New 1,2,3-triazole based bis- and trisphosphine ligands: synthesis, transition metal chemistry and catalytic studies》 about this compound( cas:12080-32-9 ) in Dalton Transactions. Keywords: crystal structure transition metal complex containing triazolebisphosphine triazoletrisphosphine ligand; mol structure transition metal complex containing triazolebisphosphine triazoletrisphosphine ligand; transition metal complex containing triazolebisphosphine ligand preparation Heck catalyst; Heck reaction aryl bromide alkene metal triazolephosphine catalyst. We’ll tell you more about this compound (cas:12080-32-9).

The syntheses and transition metal chem. of triazole-based bis- and tris-phosphines, 5-(diphenylphosphanyl)-1-(2-(diphenylphosphanyl)phenyl)-4-phenyl-1H-1,2,3-triazole (2), 5-(diphenylphosphanyl)-4-(2-(diphenylphosphanyl)phenyl)-1-phenyl-1H-1,2,3-triazole (5), 1,4-bis(2-(diphenylphosphanyl)phenyl)-1H-1,2,3-triazole (6) and 5-(diphenylphosphanyl)-1,4-bis(2-(diphenylphosphanyl)phenyl)-1H-1,2,3-triazole (7), are described. Bisphosphines 5 and 6 show versatile coordination behavior due to the presence of at least four donor atoms. The reactions of 5 and 6 with Group VI metal carbonyl derivatives are highly sensitive to the reaction conditions. Bisphosphine 5 upon treatment with [M(CO)4(piperidine)2] (M = Mo and W) yielded both P,P and P,N coordinated complexes [M(CO)4(5)] [M = Mo-κ2-P,N (8); W-κ2-P,N (9); Mo-κ2-P,P (10); W-κ2-P,P (11)], whereas 6 afforded only P,N coordinated complexes [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))CH}-κ2-P,N}Mo(CO)4] (12) and [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))CH}-κ2-P,N}W(CO)4] (13). The reactions of 5 with [M(COD)Cl2] (M = Pd and Pt) yielded κ2-P,P chelate complexes 14 and 15, resp., whereas the treatment of 6 with [Pd(COD)Cl2] at ambient temperature gave a rare fused six-membered PCP pincer complex [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))C}-κ3-P,C,P}PdCl] (16). Similar reactions of 6 with [NiCl2(DME)] and [Pt(COD)Cl2] in the presence of LiHMDS yielded [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))C}-κ3-P,C,P}NiCl] (17) and [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))C}-κ3-P,C,P}PtCl] (18), resp. The reaction between 6 and [M(COD)Cl]2 (M = Rh and Ir) produced cationic complexes [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))CH}-κ2-P,N}Rh(C8H12)]Cl (19) and [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))CH}-κ2-P,N}Ir(C8H12)]Cl (20), resp., whereas the reaction with [Rh(acac)(CO)2] resulted in a pincer complex [{o-Ph2P(C6H4){1,2,3-N3C(o-Ph2P(C6H4))C}-κ3-P,C,P}Rh(CO)] (21). The structures of most of the compounds were determined by single crystal x-ray analyses. The fused six-membered PCP Pd pincer complex 16 is an excellent catalyst for the Mizoroki-Heck coupling reaction.

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HPLC of Formula: 12080-32-9. 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Multifunctional Pt(II)-Based Metallo-Supramolecular Polymer with Carboxylic Acid Groups: Electrochemical, Mechanochemical, Humidity, and pH Response. Author is Chakraborty, Chanchal; Rana, Utpal; Moriyama, Satoshi; Higuchi, Masayoshi.

We report multifunctional Pt(II)-based metallo-supramol. polymer with carboxylic acid groups (polyPtC). The polymer showed multi-stimuli-responsive emission to electrochem. redox, mech. force, humidity, and pH. It also exhibited humidity-responsive ionic conductivity Furthermore, it displayed electrofluorochromism. The emission switching between the two transition states (3MLCT/3LLCT and 3MMLCT) was based on the reversible changes of the interchain Pt-Pt interaction in polyPtC, which was caused by the secondary interaction or the crystalline-amorphous transition. The ionic conductivity of polyPtC was responsible for the humidity and the real-time humidity sensor with the polymer film was demonstrated on interdigitated Pt-electrodes. A solid-state electrochromic device with the polymer film was successfully fabricated to show reversible yellow-to-black electrochromism. In addition, it was revealed by the electrofluorochromic study that the pristine 3MLCT/3LLCT emission was quenched in the electrochem. reduced state (the black state), because the radical anion species of the ligand (tpy·-) generated at the neg. potential caused the repulsion among the polymer chains, expanded the Pt-Pt distance, and prevented the emission.

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HPLC of Formula: 12080-32-9. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about pH-mediated colorimetric and luminescent sensing of aqueous nitrate anions by a platinum(II) luminophore@mesoporous silica composite. Author is Norton, Amie E.; Sharma, Malvika; Cashen, Christina; Dourges, Marie-Anne; Toupance, Thierry; Krause, Jeanette A.; Motkuri, Radha Kishan; Connick, William B.; Chatterjee, Sayandev.

Increased levels of nitrate (NO3-) in the environment can be detrimental to human health. Herein, we report a robust, cost-effective, and scalable, hybrid material-based colorimetric/luminescent sensor technol. for rapid, selective, sensitive, and interference-free in situ NO3- detection. These hybrid materials are based on a square-planar platinum(II) salt [Pt(tpy)Cl]PF6 (tpy = 2,2′;6′,2′′-terpyridine) supported on mesoporous silica. The platinum salt undergoes a vivid change in color and luminescence upon exposure to aqueous NO3- anions at pH ≤ 0 caused by substitution of the PF6- anions by aqueous NO3-. This change in photophysics of the platinum salt is induced by a rearrangement of its crystal lattice that leads to an extended Pt···Pt···Pt interaction, along with a concomitant change in its electronic structure. Furthermore, incorporating the material into mesoporous silica enhances the surface area and increases the detection sensitivity. A NO3- detection limit of 0.05 mM (3.1 ppm) is achieved, which is sufficiently lower than the ambient water quality limit of 0.16 mM (10 ppm) set by the United States Environmental Protection Agency. The colorimetric/luminescence of the hybrid material is highly selective to aqueous NO3- anions in the presence of other interfering anions, suggesting that this material is a promising candidate for the rapid NO3- detection and quantification in practical samples without separation, concentration, or other pretreatment steps.

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Electric Literature of C8H12Cl2Pt. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Synthesis and catalytic performance of highly dispersed platinum nanoparticles supported on alumina via supercritical fluid deposition. Author is Jiang, Haoxi; Yao, Chuanxu; Wang, Yaodong; Zhang, Minhua.

Highly dispersed platinum nanoparticles (NPs) supported on alumina were prepared by supercritical fluid deposition (SFD) with the aid of co-solvent ethanol using inorganometallic Na2PtCl6·6H2O as Pt precursor. The mean Pt particle size (1.5 nm) was obtained at the optimized deposition conditions of 40°C and 110 bar and 3 h of deposition time. The catalysts were characterized by high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), CO diffuse reflectance IR Fourier transform spectroscopy (CO-DRIFTS), XPS, inductively coupled plasma optical emission spectrometry (ICP-OES) and hydrogen-oxygen titrations to investigate the structure-activity relationship. Compared with the catalyst prepared via an impregnation method, the Pt was highly dispersed to smaller particles for Pt/Al2O3 catalysts prepared by SFD and showed much higher catalytic activity of catalytic reforming of cyclohexane dehydrogenation.

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Reference of Dichloro(1,5-cyclooctadiene)platinum(II). Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Square Planar Nucleophilic and Radical Pt(II) Carbenes. Author is Deziel, Anthony P.; Hoffbauer, Melissa R.; Iluc, Vlad M..

A square planar platinum(II) carbene complex [{PC(sp2)P}HPt(PMe3)] ([PC(sp2)P]H = (bis[2-(di-iso-propylphosphino)phenyl]methylene)) was synthesized through the dehydrohalogenation of [{PC(sp3)HP}HPtCl] in a microwave reactor. The tert-Bu substituted analog, [{PC(sp2)P}tBuPt(PMe3)] ([PC(sp2)P]tBu = bis[2-(di-iso-propylphosphino)-4-tert-butylphenyl]methylene), was synthesized via an analogous route. The nucleophilic nature of the carbene carbon was confirmed through DFT calculations and reactivity with HCl. Addnl., [{PC(sp2)P}HPt(PMe3)] was treated with 0.5 equiv of I2 to generate a paramagnetic product, [{PC(sp2)P}HPtI]. The Evans method and EPR spectroscopy revealed that a one-electron oxidation occurred at the carbene carbon, thus generating a persistent radical carbene.

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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: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9 ) is researched.HPLC of Formula: 12080-32-9.Soellner, Johannes; Strassner, Thomas published the article 《Mesoionic 1,2,3-Triazolo[1,5-a]pyridine-3-ylidenes in Phosphorescent Platinum(II) Complexes》 about this compound( cas:12080-32-9 ) in ChemPhotoChem. Keywords: crystal structure mol triazolopyridinylidene platinum diketone complex optimized DFT; uv vis photoluminescence phosphorescence triazolopyridinylidene platinum diketone complex redox. Let’s learn more about this compound (cas:12080-32-9).

Mesoionic carbene ligands based on 1,2,3-triazole platforms can be used in cyclometalated platinum(II) complexes to achieve an efficient phosphorescence even at room temperature In this report, 1,2,3-triazolo[1,5-a]pyridine-3-ylidenes are employed in such mols. along with β-diketonates with varying steric demand. For full structural characterization, NMR spectroscopy and XRD experiments were employed. The photophys. properties were studied in solid poly(Me methacrylate) (PMMA) matrixes, as well as dichloromethane solutions In PMMA, the synthesized complexes show quantum yields of 47-54% with emission bands in the yellow region of the visible spectrum. Cyclic voltammetry measurements along with DFT calculations helped to assign the nature of the observed emissions.

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