77474-63-6Relevant academic research and scientific papers
METALLOPHTHALOCYANINE-ZNO HOLLOW NANOSPHERES COMPOSITE
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Paragraph 0032, (2021/03/19)
A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO
Synthesis and characterization of tetra-substituted palladium phthalocyanine complexes
Lokesh, Koodlur Sannegowda,Adriaens, Annemie
, p. 269 - 277 (2012/11/06)
Tetra-substituted palladium phthalocyanine complexes with different electron withdrawing and electron donating substituents (-H, -NO2, -NH2, -Cl, -COOH, aryl thio) have been synthesized with a good yield. The synthesized complexes were characterized using XPS, UV-Vis, IR, Raman, XRD, TGA and electrochemistry. The XPS spectra show that the central metal ion is in the +2 state, while the UV-Vis spectra demonstrate split absorption peaks in the Q-band region 600-700 nm due to the presence of dimeric and oligomeric molecules in addition to the monomeric species. The UV-Vis and Raman spectra demonstrate a shift in the peaks/bands which is a result of the electron withdrawing and electron donating substituents at the periphery of the benzene ring compared to the parent palladium phthalocyanine. The thermogravimetic stability studies show that these complexes undergo two separate decomposition processes. The thermal stability for different complexes are in the order: PdPc a redox process and the redox behaviour observed is mainly due to the macrocyclic ring reduction process.
Sulfanylphthalonitrile analogues as selective and potent inhibitors of monoamine oxidase B
Van Der Walt, Mietha M.,Terre'Blanche, Gisella,Lourens, Anna C.U.,Petzer, Anél,Petzer, Jacobus P.
supporting information, p. 7367 - 7370 (2013/02/21)
It has recently been reported that nitrile containing compounds frequently act as potent monoamine oxidase B (MAO-B) inhibitors. Modelling studies suggest that this high potency inhibition may rely, at least in part, on polar interactions between nitrile functional groups and polar moieties within the MAO-B substrate cavity. In an attempt to identify potent and selective inhibitors of MAO-B and to contribute to the known structure-activity relationships of MAO inhibition by nitrile containing compounds, the present study examined the MAO inhibitory properties of series of novel sulfanylphthalonitriles and sulfanylbenzonitriles. The results document that the evaluated compounds are potent and selective MAO-B inhibitors with most homologues possessing IC50 values in the nanomolar range. In general, the sulfanylphthalonitriles exhibited higher binding affinities for MAO-B than the corresponding sulfanylbenzonitrile homologues. Among the compounds evaluated, 4-[(4-bromobenzyl)sulfanyl]phthalonitrile is a particularly promising inhibitor since it displayed a high degree of selectivity (8720-fold) for MAO-B over MAO-A, and potent MAO-B inhibition (IC50 = 0.025 μM). Based on these observations, this structure may serve as a lead for the development of therapies for neurodegenerative disorders such as Parkinson's disease.
μ-oxo-bridged subphthalocyanine dimers: Preparation and characterization by X-ray structure analysis
Yamasaki, Yasuhiro,Mori, Tomohiro
experimental part, p. 1208 - 1214 (2012/01/31)
In connection with our previous research on μ-oxo-bridged metal phthalocyanine dimers, we have synthesized μ-oxo-bridged subphthalocyanine dimers (μ-oxo subpc dimers) with various peripheral substituents and studied their properties. Compared to the corre
Subphthalocyanines having axial substituent with direct B-C bond: General preparation and physical properties
Yamasaki, Yasuhiro,Mori, Tomohiro
supporting information; experimental part, p. 1108 - 1109 (2011/01/11)
A novel synthetic methodology and the characterization of subphthalocyanines (SubPcs) having an axial substituent with a direct boron-carbon bond are reported. The SubPcs are found to be more light- and/or heat resistant than analogs with a heteroatom bet
Synthesis, electrochemical and photophysical properties of phthalocyaninato oxotitanium(iv) complexes tetra-substituted at the α and β positions with arylthio groups
Tau, Prudence,Nyokong, Tebello
, p. 4482 - 4490 (2007/10/03)
The synthesis, electrochemical and photophysical properties of the following tetra-substituted thiol oxotitanium phthalocyanines are reported for the first time: 1,(4)-(tetraphenylthiophthalocyaninato)titanium(iv)oxide (5a); 1,(4)-(tetrabenzylthiophthalocyaninato)titanium(iv)oxide (5b); 2,(3)-(tetraphenylthiophthalocyaninato)titanium(iv)oxide (6a) and 2,(3)-(benzylthiophthalocyaninato)titanium(iv)oxide (6b). Cyclic voltammograms of all four complexes are similar, with three reversible reduction couples each involving a one electron transfer process. The first two reductions were confirmed by spectroelectrochemistry to be metal-based reductions due to Ti IVPc-2/TiIIIPc-2 and Ti IIIPc-2/TiIIPc-2 redox processes, while the last reduction was confirmed to be a ring-based reduction due to TiIIPc-2/TiIIPc-3. Low fluorescence quantum yields (0.05-0.14), relatively long triplet lifetimes (150-210 s) and triplet yields (0.31 to 0.82) were observed. The Royal Society of Chemistry 2006.
