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Phthalocyanines porphyrins

Although direct reaction of lanthanide mono-porphyrins with free phthalo-cyanine or its lithium derivatives is generally more efficient than the template synthesis, and gives rise to mixed-ligand complexes, the template strategy can also be applied for synthesis of phthalocyanine-porphyrin complexes, as in the case of unsymmetric bisphthalocyanine complexes (Scheme 8.2, B(b)) [106, 136, 145, 146]. Thus, metallation of free porphyrins with lanthanide salts in TCB or n-octanol leads to single-decker complexes, which then react with phthalonitriles under the action of DBU in alcoholic media to give the desired compounds. [Pg.237]

IK also claimed polymeric emitting materials comprising a polyimide, polyamideimide, polyurea, or polyazomethine with a dye component such as phthalocyanine, porphyrin, triphenylamine, oxadiazole moieties or polycarbonate with a diarylvinylene arylene skeleton or styrylamine core. [Pg.651]

EPR-IR. The neutral sandwich complexes of Lu and the one-electron oxidized sandwich complexes of Zr have a jr-radical anion that can be observed by EPR spectroscopy. The EPR spectra for compounds 21, 23, 25, 27 and Collman s mixed porphyrin-pz system (30) give a signal for an S = j system with a g value of 2.0037, which is typical for an organic n radical (35). Further evidence for the Jt-radical character in sandwich compounds of phthalocyanines, porphyrins, and porphyrazines may be obtained from infrared (IR) spectroscopy by the presence of diagnostic marker bands (81). These intense bands are found in the IR spectra of Lu(III) compounds (21) (1150 cm-1) (35), 23 (1140 cm-1) (78), and 25 (1261 cm4) (34) and are absent in the Zr(IV) and Ce(IV) compounds 27,29, and 31. [Pg.493]

Most of the devices described up to now are based on materials that tend to crystallize [phthalocyanines, porphyrins and perylenetetracarboxydiimids, (59)] [276, 277], or form liquid crystalline phases [278, 279]. With respect to amorphous glasses, light sensitive donor-acceptor type molecules, for example, the p-type triarylamines tris [4-methylphenyl(4-nitrophenyl)ammo]triphenylamine and tris[5-(dimesitylboryl)thiophen-2-yl]triphenylamine have been combined with an n-type material in a double-layer heterostructure [280]. The cells respond to visible light from 400 to 800 nm with overall efficiencies of 0.1%. [Pg.155]

Complexes with phthalocyanine, porphyrins and related macrocycles 271... [Pg.2]

Keywords Metal single-crystal surface Phthalocyanines Porphyrins Scanning tunneling microscopy (STM) Supramolecular assembly... [Pg.137]

Keywords Photocurrent Phthalocyanine Porphyrin Sensitizer Solar cell... [Pg.229]

Keywords Field effect transistors (FETs) Organic semiconductor Phthalocyanine Porphyrin Tetrapyrrole... [Pg.275]

Figure 1. Molecular structures of from left to right phthalocyanine porphyrins and subphthalocyanine... Figure 1. Molecular structures of from left to right phthalocyanine porphyrins and subphthalocyanine...
Adsorption of dyes (phthalocyanines, porphyrins, rhodamine 6G) onto superconductor YBa2Cu307 j-coated MgO surfaces Specific colors of light [49]... [Pg.216]

The optical detection of vapors was based on the changes in optical properties of thin films, such as dielectric constant, refractive index, and so forth, when they were exposed to the VOCs. In the solid thin films, there are n-n interactions between the analytes and phthalocyanines/porphyrins. Interactions with VOCs can induce a change of these interactions, leading to broad, splitting, and shift of absorbance bands in their UV-vis spectra. UV-vis spectra of phthalocyanines are typically represented... [Pg.75]

Although there is no tt-tt interaction between phthalocyanines/porphyrins and alcohols, there are many works carried out in sensing alcohols by using thin films of phthalocyanines and porphyrins. LB films of tetra-a-(2,2,4-trimethyl-3-pentyloxy) CuPc show good sensitivity to vapor of alcohol [61]. The response time of the LB film to alcohol is 2 minutes and recovery time is 1 minute. The response should be due to the hydrogen bonding between alcohol and the substituents. [Pg.84]

In general, phthalocyanines, porphyrins and corrins catalyze the reduction of organohalides and the overall reaction is shown by Equation (7.3) . ... [Pg.318]

Other important tetra-azamacrocycle ligands displaying interesting electrochemistry particularly with metals of the iron group are phthalocyanines, porphyrins, and related species. We now discuss two examples of catalytic small molecule reduction by iron-porphyrin catalyst. [Pg.3962]

The structure of the macrocyclic compounds. The N4chelates have the highest activity. Compared with phthalocyanines, porphyrins have higher activity in terms of the reduction potential, that is, O2 is reduced at higher potential when porphyrinic... [Pg.6604]


See other pages where Phthalocyanines porphyrins is mentioned: [Pg.102]    [Pg.231]    [Pg.262]    [Pg.492]    [Pg.389]    [Pg.117]    [Pg.2352]    [Pg.169]    [Pg.171]    [Pg.172]    [Pg.174]    [Pg.175]    [Pg.187]    [Pg.197]    [Pg.198]    [Pg.233]    [Pg.300]    [Pg.308]    [Pg.823]    [Pg.288]    [Pg.873]    [Pg.849]    [Pg.822]    [Pg.477]    [Pg.90]    [Pg.389]    [Pg.252]    [Pg.260]    [Pg.232]    [Pg.3]    [Pg.13]   
See also in sourсe #XX -- [ Pg.3 , Pg.557 ]

See also in sourсe #XX -- [ Pg.234 ]




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Adlayers phthalocyanine/porphyrin

Incorporation of Porphyrin and Phthalocyanine Complexes

Macrocycles (Porphyrins and Phthalocyanines)

Metal phthalocyanines and porphyrins

Photosensitization by Porphyrins and Phthalocyanines

Phthalocyanine-porphyrin hetero-arrays

Phthalocyanines and Porphyrins Complexes

Phthalocyanines picket fence’ porphyrins

Phthalocyanines porphyrin dyads

Porphyrin and Phthalocyanine-Based

Porphyrin and phthalocyanine

Porphyrin and phthalocyanine complexes

Porphyrin-phthalocyanine dyad

Porphyrins Group 14 phthalocyanines

Porphyrins and Phthalocyanins

Porphyrins and phthalocyanines

Porphyrins, Chlorins and Phthalocyanines

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