Počet záznamů: 1
A New Synthetic Approach to Thiophene-Nickel(II)porphyrin Hybrid Molecules and their Electrochemical and Computional Investigation
0346367 - UOCHB-X 2011 RIV DE eng J - Článek v odborném periodiku
Zöllner, M. J. - Frähmcke, J. S. - Elstner, M. - Jahn, Ullrich - Jones, P. G. - Becker, E. - Kowalsky, W. - Johannes, H. H.
A New Synthetic Approach to Thiophene-Nickel(II)porphyrin Hybrid Molecules and their Electrochemical and Computional Investigation.
Macromolecular Chemistry and Physics. Roč. 211, č. 3 (2010), s. 359-371 ISSN 1022-1352
Výzkumný záměr: CEZ:AV0Z40550506
Klíčová slova: hybrid material * porphyrin * thiophene
Kód oboru RIV: CC - Organická chemie
Impakt faktor: 2.437, rok: 2010
New synthetic strategies for thiophene-nickel(II)porphyrin hybrid molecules are described. Three principles-linear direct, linear spacer and lateral spacer connectivities-were realised and compared with respect to their electrochemical behaviour. Computational investigations by DFT methods confirm experimental data and explain cylic voltammetric oxidations. For the linear direct connectivity, the number of thiophene units per substituted position must be at least two, since the porphyrin core acts as conjugation breaker and hinders the formation of higher oligomers. Alternatively an ethynylene spacer can be introduced to increase conjugation and to optimise the conducting properties. The lateral spacer connection mode proved to be best suited to the electrochemical formation of hybrid compounds.
Trvalý link: http://hdl.handle.net/11104/0187413