نتایج جستجو برای: cobalt phthalocyanine

تعداد نتایج: 32940  

Journal: :Chemical communications 2005
Joseph Sly Peter Kasák Elba Gomar-Nadal Concepció Rovira Lucía Górriz Pall Thordarson David B Amabilino Alan E Rowan Roeland J M Nolte

A tetra(thiafulvalene-crown-ether) phthalocyanine self-assembles into helical tapes nanometers wide and micrometers long. Formation of these scrolled molecular architectures is a first for phthalocyanine fibres and shows potential as a novel conducting material.

A. Yahyazadeh V. Azimi

Copper (II) phthalocyanine and 2, 9, 16, 23 tetrakis nitro copper (II) phthalocyanine has been synthesized respectively from phthalonitrile and 4-nitro phthalonitrile under solvent-free condition using two different catalysts over nanodimensional zeolites. 4-Nitro phthalonitrile synthesized from phthaimide in three steps. The newly prepared compounds have been characterized by IR, UV-Vis,1H N...

Journal: :Biocell : official journal of the Sociedades Latinoamericanas de Microscopia Electronica ... et. al 2003
Marcelo de Castro Pazos Cristina Pacheco-Soares Newton Soares da Silva Renato Augusto DaMatta Marcos Tadeu T Pacheco

The effects of Photodynamic Therapy using 2nd generation photosensitizers have been widely investigated aiming clinical application treatment of solid neoplasms. In this work, ultrastructure changes caused by the action of two 2nd generation photosensitizers and laser irradiation on CHO-K1 and HeLa (neoplastic) cells were analyzed by transmission electron microscopy. Aluminum phthalocyanine chl...

Journal: :Physical chemistry chemical physics : PCCP 2011
Liang Wan Dongdong Qi Yuexing Zhang Jianzhuang Jiang

Density functional theory (DFT) calculation on the molecular structures, charge distribution, molecular orbitals, electronic absorption spectra of a series of eight unsymmetrical phthalocyaninato zinc complexes with one peripheral (E)-2-cyano-3-(5-vinylthiophen-2-yl) acrylic acid substituent at 2 or 3 position as an electron-withdrawing group and a different number of electron-donating amino gr...

Journal: :Nature Catalysis 2023

Abstract Support-induced strain engineering is useful for modulating the properties of two-dimensional materials. However, controlling planar molecules technically challenging due to their sub-2 nm lateral size. Additionally, effect on molecular remains poorly understood. Here we show that carbon nanotubes (CNTs) are ideal substrates inducing optimum through curvature. In a tandem-flow electrol...

Journal: :Baghdad Science Journal 2021

The synthesis of new substituted cobalt Phthalocyanine (CoPc) was carried out using starting materials Naphthalene-1,4,5, tetracarbonic acid dianhydride (NDI) employing dry process method. Metal oxides (MO) alloy (60%Ni3O4 40%-Co3O4 ) have been functionalized with multiwall carbon nanotubes (F-MWCNTs) to produce (F-MWCNTs/MO) nanocomposite (E2) and mixed CoPc yield (F-MWCNT/CoPc/MO) (E3). These...

Journal: :Photochemistry and photobiology 1991
B Paquette R W Boyle H Ali A H MacLennan T G Truscott J E van Lier

The photocytotoxicity of sulfonated phthalimidomethyl aluminum phthalocyanine, a more hydrophobic photosensitizer as compared to phthalocyanine substituted with sulfonate groups only, was investigated. Inclusion of 1-2 phthalimidomethyl groups into disulfonated aluminum phthalocyanine, resulted in increased partition coefficients between n-octanol and water, and a six-fold increase in both cell...

2011
Pei-Yen Chen Chin-Hsiang Luo Mei-Chin Chen Feng-Jie Tsai Nai-Fang Chang Ying Shih

Cobalt phthalocyanine (CoPc) films were deposited on the surface of a screen-printed carbon electrode using a simple drop coating method. The cyclic voltammogram of the resulting CoPc modified screen-printed electrode (CoPc/SPE) prepared under optimum conditions shows a well-behaved redox couple due to the (Co(I)/Co(II)) system. The CoPc/SPE surface demonstrates excellent electrochemical activi...

Journal: :The journal of physical chemistry. B 2006
Karla A Miller Richard D Yang Michael J Hale Jeongwon Park Bernd Fruhberger Corneliu N Colesniuc Ivan K Schuller Andrew C Kummel William C Trogler

The electrical properties of 50 nm thick metallophthalocyanine films, prepared by organic molecular beam epitaxy (OMBE) on interdigitated electrodes, were studied with DC current-voltage measurements and impedance spectroscopy. The transition from Ohmic behavior at low voltages to space-charge-limited conductivity (SCLC) at higher voltages depends on the metal electrode (Pt, Pd, and Au), but do...

2009
Yves Henri Geerts Olivier Debever Claire Amato Sergey Sergeyev

A series of phthalocyanine-C(60) dyads 2a-d was synthesized. Key steps in their synthesis are preparation of the low symmetry phthalocyanine intermediate by the statistical condensation of two phthalonitriles, and the final esterification of the fullerene derivative bearing a free COOH group. Structural characterization of the molecules in solution was performed by NMR spectroscopy, UV-vis spec...

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