New dimeric supramolecular structure of mixed (phthalocyaninato)(porphyrinato)-europium(III) sandwiches : preparation and spectroscopic characteristics
Data(s) |
2003
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Resumo |
The mixed double-decker Eu\[Pc(15C5)4](TPP) (1) was obtained by base-catalysed tetramerisation of 4,5-dicyanobenzo-15-crown-5 using the half-sandwich complex Eu(TPP)(acac) (acac = acetylacetonate), generated in situ, as the template. For comparative studies, the mixed triple-decker complexes Eu2\[Pc(15C5)4](TPP)2 (2) and Eu2\[Pc(15C5)4]2(TPP) (3) were also synthesised by the raise-by-one-story method. These mixed ring sandwich complexes were characterised by various spectroscopic methods. Up to four one-electron oxidations and two one-electron reductions were revealed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). As shown by electronic absorption and infrared spectroscopy, supramolecular dimers (SM1 and SM3) were formed from the corresponding double-decker 1 and triple-decker 3 in the presence of potassium ions in MeOH/CHCl3. |
Identificador | |
Publicador |
Royal Society of Chemistry |
Relação |
DOI:10.1039/B300529A Arnold, Dennis, Bai, Ming, Bao, Meng, Choi, Michael, Jiang, Jianzhuang, Ma, Changqin, & Ng, Dennis (2003) New dimeric supramolecular structure of mixed (phthalocyaninato)(porphyrinato)-europium(III) sandwiches : preparation and spectroscopic characteristics. Journal of Materials Chemistry, 13, pp. 1333-1339. |
Fonte |
Faculty of Science and Technology |
Palavras-Chave | #030300 MACROMOLECULAR AND MATERIALS CHEMISTRY #030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL) |
Tipo |
Journal Article |