Method of producing a metal phthalocyanine pigment
申请人:Sato Tadahisa
公开号:US20060116511A1
公开(公告)日:2006-06-01
A method of producing a metal phthalocyanine pigment, which contains the step of: allowing an alkali metal salt of phthalocyanine to react with a metal salt, in a solvent which is mainly composed of a sulfur-containing aprotic polar solvent.
Method of producing fine particles of metal complex pigment and dispersion containing fine particles of metal complex pigment obtained by the method
申请人:FUJIFILM CORPORATION
公开号:US07578880B2
公开(公告)日:2009-08-25
A method of producing fine particles of metal complex pigment, containing the step of reacting a solution of an alkali metal salt of a ligand that constitutes the metal complex with a solution of salts of a metal that constitutes the metal complex, in the course of a laminar flow in a channel; and a method of producing fine particles of metal complex pigment, containing the step of bringing a solution of an alkali metal salt of a ligand that constitutes the metal complex and a solution of salts of a metal that constitutes the metal complex into contact with each other in a channel having an equivalent diameter of 1 mm or less to form a liquid flow.
Theoretical and experimental investigation on the electronic properties of the shuttlecock shaped and the double-decker structured metal phthalocyanines, MPc and M(Pc)2 (M = Sn and Pb)
The molecular geometries, electronic structures, and excitation energies of tin and lead phthalocyanine compounds, SnPc, PbPc, Sn(Pc)2, and Pb(Pc)2, were investigated using the B3LYP method within a framework of density functional theory (DFT). The geometries of SnPc, PbPc, Sn(Pc)2, and Pb(Pc)2 were optimized under C4v, C4v, D4d, and D4d molecular symmetries, respectively. The excitation energies of these molecules were computed by the time-dependent DFT (TD-DFT) method. The calculated results for the excited states of three compounds other than the unknown Pb(Pc)2 corresponded well with the experimental results of electronic absorption spectroscopy. The non-planar C4v molecular structure of SnPc and PbPc influences especially on the orbital energy of the HOMO−1 through mixing of the s-type atomic orbital of the central metal atom to the π system of the Pc ring in an anti-bonding way; however, the HOMO and the LUMO have little effect of the deviation from the planar structure because they have no contribution from the atomic orbital of the central metal. This orbital mixing pushes up the orbital energy of the HOMO−1, and reduces the energy of the metal-to-ligand charge transfer band of SnPc and PbPc. The calculated results also reproduced well the excitation profile of Sn(Pc)2, which was quite different from that of SnPc. The strong interactions between the π-type orbitals of two Pc moieties altered the electronic structure resulting in the characteristic excitation profile of Sn(Pc)2. In addition, this caused a reduction of about 0.8 eV in the ionization potential as compared to usual MPcs including SnPc, which was consistent with the experimental results.
Kroenke, W. J.; Kenney, M. E., Zeitschrift fur Chemie, 1984, vol. 24, p. 449 - 450
作者:Kroenke, W. J.、Kenney, M. E.
DOI:——
日期:——
UHV deposition of titanium bis-phthalocyanine on the GaAs-β2- and on graphite surface: an STM-UHV study
作者:Aldo Capobianchi、Anna Maria Paoletti、Giovanna Pennesi、Gentilina Rossi、Guido Scavia
DOI:10.1016/s0039-6028(03)00604-6
日期:2003.6
An STM-UHV study of the deposition of titanium bis-phthalocyanine under high vacuum (UHV) conditions on two different substrates such as GaAs(I 0 0)-beta2-(2 x 4) and highly oriented pyrolytic graphite (HOPG) has been carried out. An STM spectroscopic analysis on the local density of states has been also performed. In the case of GaAs as substrate, the STM images show that the molecules align themselves preferentially along the dimer rows, typical of the (2 x 4) reconstruction, thus revealing the fundamental role of the interaction between the molecule and the reconstructed substrate in orienting the adsorbed molecules. In the case of HOPG, the images indicate the formation of irregular channels thus suggesting an auto-assembling of the molecules between themselves rather than a strong interaction with the substrate, as in the GaAs case. (C) 2003 Elsevier Science B.V. All rights reserved.