Light harvesting, dendrimers

Light-Harvesting Dendrimers with a FuUerene Core. 93... 

Another example of hypermonomer-based dendrimer synthesis was reported by Gilat et al. for the rapid preparation of a new family of laser dye-labeled dendrimers that were critical to our study of energy transfer in light harvesting dendrimers (Scheme 6) [29]. In order to avoid undesirable through-bond energy transfer in the poly(benzyl ether dendrimers, the reversed monomer unit,... 

Figure 4.31 Partial structure of a light harvesting dendrimer.

Probably the larger class of light-harvesting dendrimers investigated up to now is constituted of dendrimers based on Ru(II) and Os(II) polypyridine complexes, and the more extensive studies within these species involve the systems containing... 

Balzani V, Ceroni P, Maestri M, Vicinelli V. Light-harvesting dendrimers. Curr Opin Chem Biol 2003 7 657-65. 

A. Adronov, J. Fr4chet, Light-Harvesting Dendrimers , Chem. Commun., 1701 (2000)... 

Purely organic light-harvesting dendrimers have been prepared by Moore and coworkers [42], In these systems (Figure 17), the light absorbed by the peripheral chromophores (phenylacetylene monodendrons) is transferred to the core (per-ylene) via a coulombic mechanism. The efficiency of the process depends on the... 

Figure 17. Schematic representation of the light-harvesting dendrimers prepared by Moore and co-workers [42],...

Scheme 1 Building blocks for multimetaUic light harvesting dendrimers [4,5]...

Stapert HR, Nishiyama N, Kataoka K, Jiang DL, Aida T. Polyion complex micelles encapsulating light-harvesting dendrimer porphyrins. Langmuir 2000 16 8182-8188. 

Adronov, A. Frechet, J.M.J. Light-harvesting dendrimers. Chem. Commun. 2000, 1701-1710. 

Nishiyama, N., Stapert, H. R., Zhang, G.-D., Takasu, D., Jiang, D.-L., Nagano, T., Aida, T., Kataoka, K., Light-harvesting dendrimer porphyrins as new photosensitizers for photodynamic therapy, Bioconj. Chem. In press. 

Fig. 1. Building blocks for multimetallic light harvesting dendrimers.

Dendrimers have been shown to act as efficient light harvesters. Since they can be easily synthesized and modified to include chromophores, many routes to light-harvesting dendrimers have been explored and will continue to be developed. Energy transfer efficiency in many dendritic systems is near quantitative, establishing them as viable photosynthetic mimics. The high energy transfer efficiency in these systems has led to their use in optoelectronic devices such as OLEDs and fluorescent... 

Adronov A, Frechet JMJ (2000) Light-harvesting dendrimers. Chem Commun 1 1701... 

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