39001-64-4Relevant academic research and scientific papers
Gas-phase structure and conformations of copper(II) 2,9,16,23-tetra-tert-butyl phthalocyanine
Pimenov, Oleg A.,Giricheva, Nina I.,Blomeyer, Sebastian,Mayzlish, Vladimir E.,Mitzel, Norbert W.,Girichev, Georgiy V.
, p. 1531 - 1541 (2015)
The molecular structure of copper(II) 2,9,16,23-tetra-tert-butyl phthalocyanine (Cu(pc t )) was investigated by gas-phase electron diffraction with mass spectrometric control of vapor composition. Two conformers of C 4h symmetry and three conformers of C s symmetry are predicted by quantum chemical calculations using the hybrid DFT method UB3LYP with 6-31G and cc-pVTZ basis sets. According to the relative energies at the temperature of GED experiments (436°C), the two C 4h symmetric conformers occur in 1.1 and 2.3 % abundance in the gas phase. The highest mole fraction (66.6 %) and lowest R-factor (4.25 %) correspond to one of the C s symmetric conformers; however, the two C 4h symmetric models cannot be disproved by the Hamilton R-factor ratio test. The GED structural data of the three models mentioned reliably confirm approximate local D 4h symmetry of the phthalocyanine ligand core.
Synthesis of Metal Complexes of Tetra-(2,3-anthra)-tetraazaporphin and Comparison of their Electronic Absorption Spectra with other Linearly Annellated Tetraazaporphin Systems
Freyer, Wolfgang,Minh, Le quoc
, p. 475 - 490 (1986)
Copper, nickel and aluminium derivatives of tetra-2,3-anthratetraazaporphin bearing different substituents in the anthracen part have been prepared: The absorption spectra of these substances in different solvents are given and compared with metal complex
Some peculiarities of metal exchange reactions in porphyrin and phthalocyanine complexes
Berezin,Shukhto,Nikol'skaya,Berezin
, p. 95 - 100 (2008/10/09)
Kinetics of metal exchange reaction Cd(II) → Zn(II) and Cd(II) → Cu(II) in Cd complexes with tetraphenylporphyrin in DMSO is studied. Reaction with Cu(II) nitrate occurs in both cases more vigorously as compared to that with Zn(II) nitrate. Conditions for metal exchange reactions are studied depending on the nature of metal porphyrinate, a salt (nitrates, acetates, and chlorides of Zn(II), Cu(II), and Co(II), and of organic solvent (DMSO, CH 3CN). It is shown that Zn(II) complexes with nonplanar porphyrins do not show metal exchange Zn(II) → Cu(II) or Zn(II) → Co(II) under mild conditions in DMSO and CH3CN.
Microwave-assisted synthesis and reverse saturable absorption of phthalocyanines and porphyrins
Liu, Mark O.,Tai, Chia-Hon,Wang, Wei-Ya,Chen, Jun-Rong,Hu, Andrew Teh,Wei, Tai-Huei
, p. 1078 - 1084 (2007/10/03)
Soluble phthalocyanines, including tetrakis(2,9,16,23-cumylphenoxy) copper phthalocyanines (CuPc(β-CP)4), tetrakis(1,8,15, 22-cumylphenoxy) copper phthalocyanines (CuPc(α-CP)4) as well as tetrakis(2,9,16,23- tert -butyl) copper phthalocyanines (CuPc(β-t-butyl)4), and porphyrins (5,10,15,20-tetrakis (4- tert -butylphenyl)porphyrins; M(TBP), M=H2, Zn, Cu, Mg, InCl, AlCl) have been quickly synthesized by microwave irradiation. Furthermore, their reverse saturable absorption have also been investigated by dissolving them in solvent or incorporating them in polymer-silica hybrid material with a sol-gel process with polyvinyl butyral and tetraethyl orthosilicate as precursors. A new method for the preparation process of phthalocyanines and porphyrins in the solids has been successfully used.
