Category: 12080-32-9

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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Square Planar Nucleophilic and Radical Pt(II) Carbenes.Application In Synthesis of Dichloro(1,5-cyclooctadiene)platinum(II).

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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Zhang, Pengfei; Behl, Marc; Peng, Xingzhou; Balk, Maria; Lendlein, Andreas published the article 《Chemoresponsive Shape-Memory Effect of Rhodium-Phosphine Coordination Polymer Networks》. Keywords: chemoresponsive shape memory rhodium phosphine coordination polymer network.They researched the compound: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9 ).Safety of Dichloro(1,5-cyclooctadiene)platinum(II). 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:12080-32-9) here.

Chemoresponsive polymers are of technol. significance for smart sensors or systems capable of mol. recognition. An important key requirement for these applications is the material’s structural integrity after stimulation. We explored whether covalently crosslinked metal ion-phosphine coordination polymers (MPN) can be shaped into any temporary shape and are capable of recovering from this upon chemoresponsive exposure to triphenylphosphine (Ph3P) ligands, whereas the MPN provide structural integrity. Depending on the metal-ion concentration used during synthesis of the MPN, the degree of swelling of the coordination polymer networks could be adjusted. Once the MPN was immersed into Ph3P solution, the reversible ligand-exchange reaction between the metal ions and the free Ph3P in solution causes a decrease of the coordination crosslink d. in MPN again. The Ph3P-treated MPN was able to maintain its original shape, indicating a certain stability of shape even after stimulation. In this way, chemoresponsive control of the elastic properties (increase in volume and decrease of mech. strength) of the MPN was demonstrated. This remarkable behavior motivated us to explore whether the MPN are capable of a chemoresponsive shape-memory effect. In initial experiments, shape fixity of around 60% and shape recovery of almost 90% were achieved when the MPN was exposed to Ph3P in case of rhodium. Potential applications for chemoresponsive shape-memory systems could be shapable semiconductors, e.g., for lighting or catalysts, which provide catalytic activity on demand.

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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 Stereochemical Effects on Platinum Acetylide Two-Photon Chromophores, published in 2019-10-31, which mentions a compound: 12080-32-9, mainly applied to stereochem effect platinum acetylide two photon nonlinear absorption chromophore, Application of 12080-32-9.

Cis-Pt(II) acetylide complexes containing 2-photon-absorbing chromophores were synthesized and characterized to explore the effects of stereochem. on the nonlinear absorption properties. The mols. feature 4-(phenylethynyl)phenylethynylene (PE2), diphenylaminofluorene (DPAF), and benzothiazolylfluorene (BTF) ligands. The photophys. properties were studied under 1- and 2-photon conditions and compared to the known trans analogs via UV-visible absorption, luminescence, femtosecond and nanosecond transient absorption (TA), nanosecond z-scan, and femtosecond 2-photon absorption (2PA). The bent cis complexes exhibit blue shifts in the absorption, emission, femtosecond, and nanosecond TA spectra along with lower molar absorptivities and lower phosphorescence yields relative to the trans complexes suggesting less efficient Pt-induced spin-orbit coupling and intersystem crossing in the cis configuration. The cis chromophores are noncentrosym. and therefore show dipolar behavior with a pronounced 2PA in the 0-0 transition of the S0 → S1 band, while the trans complexes show quadrupolar behavior with a forbidden 0-0 transition. In the S0 → Sn region, both cis and trans complexes show intense 2-photon-absorption bands (up to 3700 GM by the peak cross section for cis-BTF) which contain a significant contribution from the excited state absorption (S1 → Sn). All 6 complexes exhibit comparable nonlinear absorption response with a significant contribution from triplet-triplet absorption that slightly favors trans complexes but is more strongly dependent upon the structure of the π-conjugated chromophore. Crystallog. data are given.

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Recommanded Product: 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 2-Adamantyl Complexes of Platinum. Author is Taullaj, Fioralba; Armstrong, David; Datta, Shaishav; Lough, Alan J.; Fekl, Ulrich.

The first adamantyl platinum complexes were isolated and characterized, namely [(COD)Pt(2-Ad)Cl], [(dppe)Pt(2-Ad)Cl], [(COD)Pt(2-Ad)Me] and, [(dppe)Pt(2-Ad)Me] {COD = 1,5- cyclooctadiene, dppe = 1,2-bis(diphenylphosphino)ethane, Ad = adamantyl}. These complexes show considerable stability, including resistance to heating to 125° in solution for several days. It is therefore concluded that previously existing road blocks to synthesizing platinum adamantyls were due to complications in the transmetalation step, and not due to intrinsic instability of the final product. Counterintuitively, the key to successful transmetalation from ZnII onto PtII is imposing slow reaction progress via use of a solvent in which both the platinum chloride precursor and adamantyl anion precursor are poorly soluble

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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.Name: Dichloro(1,5-cyclooctadiene)platinum(II).Sayadi, Mohsen; Sabounchei, Seyyed Javad; Sedghi, Asieh; Bayat, Mehdi; Hosseinzadeh, Leila; Gable, Robert W. published the article 《Synthesis, characterization, theoretical and cytotoxicity studies of Pd(II) and Pt(II) complexes with new bidentate carbon donor ligand》 about this compound( cas:12080-32-9 ) in Polyhedron. Keywords: palladium platinum bidentate phosphorus ylide complex preparation DFT calculation; crystal structure bidentate phosphorus ylide ligand; fluorescence palladium platinum bidentate phosphorus ylide complex; antitumor activity palladium platinum bidentate phosphorus ylide complex. Let’s learn more about this compound (cas:12080-32-9).

The new phosphonium salt, the C,C-chelating phosphorus ylide ligand, (MeOC6H5C(O)CH:PPh2(CH2)2PPh2:CHC(O)C6H5OMe), and its Pd(II) and Pt(II) complexes were synthesized and the cytotoxic activity of the synthesized complexes against three human cancer cell lines, including HeLa (Human cervix cancer cell line), KB (human oral cancer cell line) and U87 MG (human glioblastoma cell line) were evaluated using an MTT assay. The new compounds were identified and characterized using multinuclear (1H, 13C and 31P) NMR, IR spectroscopy, elemental anal., and through UV absorption and fluorescence emission spectra. Also, the crystal structure of the phosphorus ylide ligand was determined by single-crystal x-ray diffraction anal. According to the obtained results from the MTT assay, the Pd(II) and Pt(II) complexes demonstrated a higher cytotoxic activity against KB human oral cancer cells in comparison with other cell lines, rendering these compounds into suitable candidates for further anti-oral cancer studies. Furthermore, a theor. study on structure and nature of the M-C bonding between the Y ligand (ylide) and MCl2 fragment in the [YMCl2] (M = Pd, Pt and Y = (MeOC6H5C(O)CH:PPh2(CH2)2PPh2:CHC(O)C6H5OMe)) complexes are reported via NBO and energy-decomposition anal. (EDA).

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HPLC of Formula: 12080-32-9. 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Platinum(II) Complexes of Tridentate N N- N -Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties. Author is Puttock, Emma V.; Sturala, Jiri; Kistemaker, Jos C. M.; Williams, J. A. Gareth.

Five Pt(II) complexes are described in which the metal ion is bound to anionic N N N-coordinating ligands. The central, deprotonated N atom is derived from an imide Ar-C(:O)-NH-C(:O)-Ar {PtL1-2Cl; Ar = pyridine or pyrimidine}, an amide py-C(:O)-NH-CH2-py {PtL3Cl}, or a hydrazide py-C(:O)-NH-N:CH-py {PtL4Cl}. The imide complexes PtL1-2Cl show no significant emission in solution but are modestly bright green/yellow phosphors in the solid state. PtL3Cl is weakly phosphorescent. PtL4Cl is formed as a mixture of isomers, bound through either the amido or imino nitrogen, the latter converting to the former upon absorption of light. Remarkably, the imino form displays fluorescence in solution, λ0,0=535 nm, whereas the amido shows phosphorescence, λ0,0=624 nm, τ=440 ns. It is highly unusual for two isomeric compounds to display emission from states of different spin multiplicity. The amido-bound PtL4Cl can act as a bidentate O N-coordinating ligand, demonstrated by the formation of bimetallic complexes with iridium(III) or ruthenium(II).

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Name: Dichloro(1,5-cyclooctadiene)platinum(II). 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 Platinum(II) complexes containing hydrazide-based aminophosphine ligands: Synthesis, molecular structures, computational investigation and evaluation as antitumour agents. Author is Gholivand, Khodayar; Maghsoud, Yazdan; Kahnouji, Mohammad; Hosseini, Mahdieh; Satari, Mohammad; Abdolmaleki, Parviz; Roe, Stephen Mark.

Four new N,N-bis(diphenylphosphino)amine ligands (amine = 1-amino-4-methylpiperazine (L1), N-aminophthalimide (L2), 4-aminomorpholine (L3) and hydrazine dihydrochloride (L4)) and their Pt(II) complexes C1, C2, C3 and C4 were synthesized and characterized using IR and NMR spectroscopies. The crystal structures of C1, C2 and C3 were determined using single-crystal x-ray diffraction techniques. The antitumor activities of the synthesized complexes determined using MTT assay on MDA-MB-231 cell line revealed that the studied complexes, especially C2, significantly suppressed the proliferation of these cancer cells in a dose- and time-dependent manner (e.g. at a complex concentration of 100 μg ml-1, in 24 h, the reduction of the cell viability was 88.00, 38.89, 83.35 and 64.28% for C1-C4, resp.). Theor. approaches were also used to investigate the energy and the nature of metal-ligand and metal-chlorine interactions in the complexes, which could explain their biol. activities. The interaction between ligand and Pt is stronger in C2, while the Pt-Cl interaction is weaker in this complex in comparison with the other complexes.

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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 Novel tetranuclear PdII and PtII anticancer complexes derived from pyrene thiosemicarbazones, the main research direction is tetranuclear palladium platinum cyclometalated pyrene thiosemicarbazone preparation antitumor activity; crystal mol structure cyclometalated pyrene thiosemicarbazone platinum tetranuclear complex.HPLC of Formula: 12080-32-9.

Cyclometalated palladium(II) and platinum(II) pyrenyl-derived thiosemicarbazone (H2PrR) complexes of the type [M4(μ-S-PrR-κ3-C,N,S)4] (M = PdII, PtII; R = Et, cyclohexyl) have been synthesized in good yields and fully characterized. X-ray crystallog. showed that the tetranuclear complex [Pt4(μ-S-PrCh-κ3-C,N,S)4](CH3)2COCHCl3 contains an eight-membered ring of alternating M-S atoms. The Et derivatives [M4(μ-S-PrEt-κ3-C,N,S)4] exhibit potent antiproliferative activity towards A2780 human ovarian cancer cells, with IC50 values of 1.27μM (for M = PdII) and 0.37μM (for M = PtII), the latter being an order of magnitude more potent than the anticancer drug cisplatin (IC50 1.20μM). These promising complexes had low toxicity towards non-cancerous human MRC5 cells, which points towards an early indication of differential toxicity between cancer and normal cells. Experiments that investigated the effects of these tetranuclear complexes on the cell cycle, integrity of the cell membrane, and induction of apoptosis, suggested that their mechanism of action of does not involve DNA targeting, unlike cisplatin, and therefore could be promising for combating cisplatin resistance.

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Category: alcohols-buliding-blocks. 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 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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Category: alcohols-buliding-blocks. 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 Platinum(II) Complexes of Tridentate N N- N -Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties. Author is Puttock, Emma V.; Sturala, Jiri; Kistemaker, Jos C. M.; Williams, J. A. Gareth.

Five Pt(II) complexes are described in which the metal ion is bound to anionic N N N-coordinating ligands. The central, deprotonated N atom is derived from an imide Ar-C(:O)-NH-C(:O)-Ar {PtL1-2Cl; Ar = pyridine or pyrimidine}, an amide py-C(:O)-NH-CH2-py {PtL3Cl}, or a hydrazide py-C(:O)-NH-N:CH-py {PtL4Cl}. The imide complexes PtL1-2Cl show no significant emission in solution but are modestly bright green/yellow phosphors in the solid state. PtL3Cl is weakly phosphorescent. PtL4Cl is formed as a mixture of isomers, bound through either the amido or imino nitrogen, the latter converting to the former upon absorption of light. Remarkably, the imino form displays fluorescence in solution, λ0,0=535 nm, whereas the amido shows phosphorescence, λ0,0=624 nm, τ=440 ns. It is highly unusual for two isomeric compounds to display emission from states of different spin multiplicity. The amido-bound PtL4Cl can act as a bidentate O N-coordinating ligand, demonstrated by the formation of bimetallic complexes with iridium(III) or ruthenium(II).

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