Wyniki wyszukiwania - BazTech

1

Ogniwa hybrydowe - iminy tiofenowe jako HTM

Kotowicz Sonia, Pająk Agnieszka Katarzyna, Korzec Mateusz, Schab-Balcerzak Ewa

Przegląd Elektrotechniczny

|

2022

|

R. 98, nr 2

76--78

PL

W pracy przedstawiono wybrane właściwości fizykochemiczne imin tiofenowych z wolną grupą –NH2. Celem było określenie wpływu rodzaju podstawnika przy wiązaniu iminowym na właściwości termiczne, elektrochemiczne oraz optyczne. Przetestowano syntezowane związki jako materiały transportujące ładunki dodatnie w ogniwach perowskitowych o strukturze FTO/b-TiO2/m-TiO2/perowskit/imina/Au. Stwierdzono korzystny wpływ obecności pochodnej morfoliny oraz metylobenzenu w strukturze imin na wydajność ogniw.

EN

This article presents selected physicochemical properties of the thiophene imines with a free –NH2 group. The study was focused on investigations of impact of substituent in imine bond structure on thermal, electrochemical and optical properties. The synthesized compounds tested as hole transporting materials in perovskite cells with the structure FTO/b-TiO2/m-TiO /perovskite /imine/Au. The advantageous effect of the presence of morpholine derivative and methylbenzene unit in imines on cells efficiency was found.

2

Review on thermoelectrical properties of selected imines in neat and multicomponent layers towards organic opto-electronics and photovoltaics

Bogdanowicz Krzysztof Artur, Iwan Agnieszka

Opto-Electronics Review

|

2021

|

Vol. 29, No. 4

201--212

EN

The present review is mainly focused on the extended analysis of the results obtained from coupled measurement techniques of a thermal imaging camera and chronoamperometry for imines in undoped and doped states. This coupled technique allows to identify the current-voltage characteristics of thin films based on imine, as well as to assess layer defects in thermal images. Additional analysis of results provides further information regarding sample parameters, such as resistance, conductivity, thermal resistance, and Joule power heat correlated with increasing temperature. As can be concluded from this review, it is possible not only to study material properties at the supramolecular level, but also to tune macroscopic properties of -conjugated systems. A detailed study of the structure-thermoelectrical properties in a series of eight unsymmetrical and symmetrical imines for the field of optoelectronics and photovoltaics has been undertaken. Apart from this molecular engineering, the imines properties were also tuned by supramolecular engineering via protonation with camphorsulfonic acid and by creation of bulk-heterojunction compositions based on poly(4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl) and/or [6,6]-phenyl-C71-butyric acid methyl ester, poly(3,4-ethylenedioxythiophene) towards the analysed donor or acceptor ability of imines in the active layer. The use of coupled measurement techniques of a thermal imaging camera and chronoamperometry allows obtaining comprehensive data on thermoelectric properties and defects indicating possible molecule rearrangement within the layer.

3

Zasady Schiffa : wybrane syntezy, reakcje i aktywność biologiczna

Nowicka A., Liszkiewicz H., Nawrocka W. P.

Wiadomości Chemiczne

|

2014

|

[Z] 68, 3-4

187--209

EN

Schiff bases are compounds with a functional group that contains a carbon- -nitrogen double bond with the nitrogen atom connected to an aryl or alkyl group. Schiff bases are condensation products of primary amines with carbonyl compound. Several studies showed that the presence of a lone pair of electrons on the nitrogen atom of the azomethine determine biological and chemical properties of imines. Schiff bases are generally excellent chelating agents, because of the special properties of C=N bond. Their metal complexes have been widely studied because they possess anticancer in vitro and herbicidal applications. Imines also have biological importance. Schiff bases are common enzymatic intermediates where an amine reacts with an aldehyde or ketone of a cofactor or a substrate. Imines have been reported for their biological properties such as antibacterial (E. coli, S. aureus), antifungal (C. albicans) activities. A large number of different Schiff bases are active against a wide range of protozoan (T. gypseum, P. viticola).

4

Synteza nitronów

Socha J., Jabłońska M., Głąb K., Mikulska M., Jasiński R., Barański A.

Czasopismo Techniczne. Chemia

|

2012

|

R. 109, z. 2-Ch

183--207

PL

W artykule przeprowadzono krytyczną analizę danych literaturowych dotyczących syntezy nitronów.

EN

The paper is a critical review of available literature data that are connected with synthesis of nitrones.

5

[2+3]-Cycloadditions of Diazoalkanes with Imines of Hexafluoroacetone and Chloral

Mloston G., Bodzioch A., Cebulska Z., Linden A., Heimgartner H.

Polish Journal of Chemistry

|

2007

|

Vol. 81, nr 5-6

631-641

EN

The reactions of N-arylimines 1 and 2 of hexafluoroacetone and chloral, respectively, with diazoalkanes at –60C to room temperature led to the corresponding 4,5-dihydro- 1H-[1,2,3]triazoles 4 and 5, in a regioselective [2+3]-cycloaddition. The structure of one example in each case has been established by X-ray crystallography. The thermal decomposition of these adducts yielded the corresponding aziridines, bearing two trifluoromethyl and one trichloromethyl group, respectively, at C(2).