118-20-7Relevant academic research and scientific papers
UV-Light Photoelectrochemical Sensor Based on the Copper Tetraamino-Phthalocyanine-modified ITO Electrode for the Detection of Nifedipine in Drugs and Human Serum
Peng, Jinyun,Zhuge, Wenfeng,Huang, Yingying,Zhang, Cuizhong,Huang, Wei
, p. 214 - 219 (2019)
In this study, a new photoelectrochemical (PEC) sensor based on the copper tetraamino-phthalocyanine-modified ITO electrode (CuTAPc/ITO) was designed for the determination of nifedipine. The prepared CuTAPc materials were characterized using UV–Visible spectrophotometry (UVS), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). Then, the CuTAPc solution was coated on the ITO electrode surface to fabricate a simple PEC sensing platform. Then, the photoelectrochemical behavior of nifedipine at the CuTAPc/ITO electrode was investigated by chronoamperometry under ultraviolet light irradiation. The obtained results indicated that the modified electrode showed a higher response signal than the blank electrode. The photocurrent of CuTAPc/ITO increased with the increasing concentration of nifedipine. The peak photocurrents were linearly dependent on the nifedipine concentration in the range of 0.25–18.0 μmol/L, thereby providing the detection limit of 0.15 μmol/L (S/N = 3). Due to the good responses for the determination of nifedipine, this sensor can be used as an alternative analysis tool for the detection of nifedipine in various real samples with high sensitivity, low detection limit, and wide linearity range.
Self-assembly of phthalocyanine and polyacrylic acid composite multilayers on cellulose nanofibers
Mao, Xue,Ding, Bin,Wang, Moran,Yin, Yanbing
, p. 839 - 844 (2010)
In this study, a novel nanocomposite multilayers was deposited on the electrospun nanofibrous mats by an electrostatic layer-by-layer (LBL) self-assembly technique. The positively charged water-insoluble 2,9,16,23-tetraaminophthalocyanine copper (CuTaPc) and the negatively charged water-soluble poly(acrylic acid) (PAA) were alternately deposited on the surface of negatively charged nanofibrous cellulose mats. The cationic CuTaPc was synthesized and characterized by UV-Vis and Fourier transform infrared (FT-IR) spectroscopy. The template nanofibrous cellulose mats were obtained from the alkaline hydrolysis of electrospun nanofibrous cellulose acetate mats. The resultant nanofibrous mats were characterized by scanning electron microscopy (SEM) and FT-IR spectroscopy. The SEM images showed that the composite LBL structured films were homogeneously deposited on the surface of the nanofibers. The diameters of nanofibers increased with the number of deposition bilayers. The average thickness of each CuTaPc/PAA bilayer is about 10 nm. Additionally, the FT-IR spectra results also indicated that the CuTaPc and PAA were coated on the nanofibrous cellulose mats.
Electron Spin Resonance Study of the Copper(II) and Cobalt(II) Chelates of 2,3;7,8;12,13;17,18-Tetrakis-(9,10-dihydroanthracene-9,10-diyl)porphyrazine
Oliver, Stuart W.,Smith, Thomas D.,Hanson, Graeme R.,Lahy, Neil,Pilbrow, John R.,Sinclair, Geoffrey R.
, p. 1475 - 1490 (1988)
The X-band e.s.r. spectra due to the benzene soluble copper(II) (1a) chelate of 2,3; 7,8; 12,13; 17,18-tetrakis-(9,10-dihydroanthracene-9,10-diyl)porphyrazine and the corresponding cobalt(II) chelate (1b) in the absence and presence of axially coordinating heterocyclic bases have been recorded.Spin Hamiltonian parameters have been determined by computer simulation of the various e.s.r. spectra and, in the case of the copper(II) chelate, compared with those obtained from the copper(II) chelates of certain phthalocyanines.The e.s.r. spectral properties of the cobalt(II) chelate (1b) porphyrazine in benzene solution were found to be remarkably dependent on the water hydration which accompanies the chelate in its isolation, requiring drying of the solution by molecular sieves.Axial coordination of the cobalt(II) centre of the chelate by pyridine, tetrahydrofuran or thiophene results in a large shift in the g region of the spectrum, observed in the absence of axial coordination, to higher fields while causing a dramatic fall in the numerical values of CoA and CoA.The e.s.r. spectra due to frozen benzene solutions of the cobalt chelate (1b) containing various amounts of N-methylimidazole show that axial coordination of the cobalt(II) chelate centre by one heterocyclic base occurs at low concentrations of N-methylimidazole.At higher concentrations, two modes of binding of the N-methylimidazole may be clearly discerned, one characterized by an e.s.r. spectral component typical of low spin cobalt(II) (g ) and a very unusual spectrum where the g-values are ca. 1.98.
Synthesis and spectral studies on substituted metal (II)-tetra-1-(thiophene-2-yl)methanimine phthalocyanine complexes
Fasiulla,Yashoda
, p. 1526 - 1532 (2018/07/15)
The synthesis, characterization of symmetrically substituted transition metal (ΙΙ)–tetra-1-(thiophene-2-yl) methaniminephthalocyanine complexes by condensation of tetraamino phthalocyanines with 2-thiophenecarboxaldehyde had been prepared. The structural and characterization of theblue colour tetra -1-(thiophene-2- yl)methanimine phthalocyanine complexesare elucidated by using a number of analytical techniques like FT-Infrared, UV-Vis spectroscopy, XRD, magnetic measurements and thermo-gravimetric analysis.The kinetic parameters and thermal decomposition of synthesized phthalocyanines complexes were calculated using thermo-gravimetric analytical data.
Carbon nanotubes chemically modified by metal phthalocyanines with excellent electrocatalytic activity to Li/SOCl2 battery
Gao, Yan,Li, Siwen,Wang, Xiao,Zhang, Ronglan,Zhang, Gai,Zheng, Ying,Zhao, Jianshe
, p. A1140 - A1147 (2017/08/26)
Carbon nanotubes (CNTs)-templated metal phthalocyanines (MPc) (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II)) assemblies (CNTs-CONH-MPc) were synthesized and characterized by IR, XRD, SEM, XPS. The lithium-thionyl chloride (Li/SOCl2) cells using CNTs
Synthesis and evaluation of antibacterial activity of water-soluble copper, nickel and zinc tetra (n-carbonylacrylic) aminephthalocyanines
Pavaskar,Patil,Furtado,Salker
, p. 4300 - 4307 (2013/09/02)
Water-soluble copper, nickel, and zinc tetra (n-carbonylacrylic) aminephthalocyanines were synthesized with an aim to evaluate their role as therapeutic materials. They were characterized by UV-Vis spectrophotometer, infra-red spectra, elemental analysis, nuclear magnetic resonance, and thermogravimetry. Efforts were made to optimize the synthesis of intermediates and final products. Photoluminescence studies were carried out on these compounds. The investigation of antibacterial activity of these aqueous soluble phthalocyanines was carried out on Staphylococcus citreus, Serratia marcescens, Proteus vulgaris, Bacillus subtilis, and Pseudomonas fluorescence, showed good inhibitory activity.
New 'molecular metals' based on symmetrically tetrasubstituted copper phthalocyanine comlexes
Achar,Jayasree
, p. 1690 - 1696 (2007/10/03)
Pure copper(II) tetrasubstituted phthalocyanine complexes, CuPTX (where X = -NO2, -N2, -SO3H, and -OH) were synthesized. The electrical conductivity properties of these complexes were investigated both before and after iod
