Tetracene- fullerene

Fullerenes and their chemical compounds are perspective materials for application in nanotechnology, spintronics and single-electronics [1], Thus, the search of ways of high-speed, contactless, selective control of electron-optical properties of fullerene-based materials is actual problem. It is well known, that weak magnetic field (MF) with induction B < IT effectively influences electron-optical properties of some organic compounds (for instance, anthracene, tetracene, etc.) [2]. 

The charge densities for the anions can be displayed in HYPERCHEM as illustrated in Figure 7.5, where the charges on C and H are shown for the naphthalene anion. The Values of the linear acenes vary from —0.06 to 0.26q for benzene to —0.05 to 0.15q for naphthalene, to 0.04 to 0.18q for anthracene and tetracene. For pentacene the range is lowered to 0.03 to 0.14q. Thus, the solution energy differences should be smaller for the higher acenes and fullerenes. In predicting the reduction potential value for heptacene, this variation should be included. The reduction potential based on a value of 0.6 V versus Hg pool for hexacene is predicted to be —0.5 V versus the Hg pool. The value, if we assume a constant... 

The origin of the small reorganization energy valnes in tetracene and pentacene can be traced to a combination of macrocyclic rigidity and full delocalization of the frontier molecular orbitals [24,26,27], Accordingly, other molecules that have been found to present small intramolecular values are fullerenes, as described by Devos and Lannoo [43], phthalocyanines [39,44], or discotic macrocycles [45],... 

The synthesis of a tetracene-[60]fullerene dyad was accomplished via RhCl(PPh3)3-catalyzed [2 + 2 + 2 cycloaddition of a naphthalene-linked 1,7-diyne with propargyl alcohol (Scheme 4.28) [35],... 

---