Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: porphyrin derivatives

Sortuj według:

Ogranicz wyniki do:

Porfiryny zamknięte w żelu krzemionkowym

Wiglusz R. J.

Wiadomości Chemiczne

2011

[Z] 65, 7-8

675-703

The need for new, chemically and physically stable luminescent materials operating with UV excitations has stimulated research on luminescence properties of doped sol–gel material. In this work, it has been presented a technology of production of silica gels doped with organic molecules, lanthanide compounds and organic/inorganic composites. Optical properties of these materials as functions of temperature, concentration and excitation wavelength are presented. Dynamics of excited states has been discussed based on the decay times and emission efficiencies data. Mechanisms of ligand-to-metal energy transfer as well as other processes affecting emission efficiency are considered. Silica sol–gels doped with di-aminoacid derivatives of porphyrins: PP(Ser)2(Arg)2, PP(Ala)2(Arg)2, PP(Met)2(Arg)2, where Met, Arg and Ser denote methionine, serine and arginine aminoacids, respectively, and H2TTMePP {tetrakis[4-(trimethylammonio)phenyl]-21H,23H-porphine} have been obtained and spectroscopically studied. These materials can find applications as phosphors or sensors of UV irradiation.

Porphyrln derivatives-properties and applications

Śliwa W., Mianowska B.

Prace Naukowe. Chemia / Wyższa Szkoła Pedagogiczna w Częstochowie

1999

Vol. 4

69---85

In the paper structure and properties of chosen porphyrin derivatives are presented, along with possibilities of their applications.

W artykule przedstawiono budowę i właściwości pochodnych porfiryn, wraz z podaniem możliwości ich zastosowań.