Intramolecular transfer processes in porphyrin-phthalocyanine heterodimers covalently linked by an oxygen atom (restricted conformation) and/or by a flexible chain of variable length were investigated. Fluorescence spectroscopy shows that singlet-singlet energy transfer from the porphyrin to the pht
Energy transfer and aggregation in monolayers containing porphyrins and phthalocyanines
✍ Scribed by M. Flörsheimer; H. Möhwald
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 552 KB
- Volume
- 159
- Category
- Article
- ISSN
- 0040-6090
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## Abstract Photophysical properties of a porphyrin‐phthalocyanine heterodimer covalently linked with a dipentoxy chain have been studied. Absorption spectra show that there is weak exciton coupling between the two chromophores in the ground state. Fluorescence spectra show that intramolecular ener
Relativistic effects in general lead to a radial contraction of the s and p orbitals and to an expansion of the d this is particularly true in the case of Hf because of the increase of relativistic effects with Z2.[351 The result is a volume contraction of the Hf phosphide because of its smaller, st