Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mohamed M. Ahmida"'
Publikováno v:
Organic Letters. 15:558-561
Quinoxalino[2',3':9,10]phenanthro[4,5-abc]phenazine (QPP) dyes have been studied as electron acceptor materials, fluorophores, and building blocks for self-organizing organic semiconductors. Condensation of tetraketopyrene with electron-rich diamino-
Autor:
Christine E. DeWolf, S. Holger Eichhorn, Scott Dufour, Himadri Kayal, Hui-Sheng Li, Mohamed M. Ahmida, Rolf Schmidt
Publikováno v:
Soft Matter. 9:811-819
Polyaromatic dyes, such as phthalocyanines and tetraazaporphyrins (TAPs), arrange with an edge-on orientation of the macrocycle in almost all Langmuir and Langmuir–Blodgett (LB) monolayers, especially when condensed at higher surface pressures. Pre
Publikováno v:
ECS Meeting Abstracts. :1001-1001
In contrast to phthalocyanines, the self-organization and -assembly of tetraazaporphyrins (TAPs) is much better controlled by molecular design because their intermolecular interactions are less dominated by the cofacial interactions between TAP macro
Autor:
M. Sharif Ahmed, Daniel Guillon, Raymond Larocque, Mohamed M. Ahmida, Alina Vacaru, S. Holger Eichhorn, Bertrand Donnio
Publikováno v:
J. Mater. Chem.. 20:1292-1303
A series of discotic octa- and tetra-alkylthio substituted phthalocyanines containing four Cl, Br, I atoms or twelve fluorine atoms have been prepared. All compounds display columnar mesomorphism as confirmed by polarized optical microscopy, thermal
Publikováno v:
ECS Meeting Abstracts. :849-849
Despite the many advances in the design of porphyrin derivatives for Langmuir Blodgett (LB) films, the formation of compressible monolayers with a flat-on orientation of the macrocycle has remained elusive. Presented here is the synthesis of tetraaza
Autor:
Ferdinand C. Grozema, Dmitrii F. Perepichka, Laurens D. A. Siebbeles, A. P. Demenev, Mohamed M. Ahmida, Bilal R. Kaafarani, Shuai Chen, Himadri Kayal, Tyler Taerum, Farah S. Raad, Richard A. Klenkler, Sameer Patwardhan, S. Holger Eichhorn
Publikováno v:
Proceedings of SPIE, 2011 vol. 8114
Donor-acceptor structures have recently gained great popularity for the design of low band gap polymeric organic semiconductors. Presented here is a first systematic study of organic semiconductors based on columnar liquid crystals that consist of di
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Publikováno v:
Journal of the American Chemical Society. 128(48)
Important aspects of the electrochemical reduction of a series of substituted arene sulfenyl chlorides are investigated. A striking change is observed in the reductive cleavage mechanism as a function of the substituent on the aryl ring of the arene
Publikováno v:
ECS Meeting Abstracts. :670-670
not Available.
Publikováno v:
Journal of Materials Chemistry C. 1:7064
An intrinsic shortcoming of self-organizing materials is their susceptibility to structural changes by mechanical forces and exposure to chemicals and radiation. Cross-linking of the molecules in the desired supramolecular structure is a generally ap
Publikováno v:
ECS Meeting Abstracts. :2254-2254
not Available.