Molecular electronic materials

An excihng new scientific direction emerged in the 1980s and 1990s for exploring molecular sieves as advanced solid state materials. In a 1989 review, Ozin et al. [88] speculated that zeolites (molecular sieves) as microporous molecular electronic materials with nanometer dimension window, channel and cavity architecture represent a new fronher of solid state chemistry with great opportunihes for innovahve research and development . The applicahons described or envisioned included molecular electronics, quantum dots/chains, zeolite electrodes, batteries, non-linear ophcal materials and chemical sensors. More recently there have been significant research reports on the use of zeolites as low k dielectric materials for microprocessors [89]. 

The low stability of the magnesium porphyrins has precluded most potential applications. Other metallotetrapyrroles have found industrial uses for oil desulfurization, as photoconducting agents in photocopiers, deodorants, germicides, optical computer disks, semiconductor devices, photovoltaic cells, optical and electrochemical sensing, and molecular electronic materials. A few scattered examples of the use of Mg porphyrins in nonlinear optical studies have appeared" and magnesium phthalocyanines have been used in a few studies as semiconductor or photovoltaic materials" " One of the few... 

Finally, some electron rich, sulphur-containing species have been prepared as part of a study of potential molecular electronic materials containing diborane(4) compounds. In a... 

Molecular Electronics Materials and Methods Lazarev, P. I., Ed. Kluwer Academic Publishers Dordrecht, The Netherlands, 1991. 

T. Otsubo, Y. Aso and K. Takimiya, Functional oligothiophenes as advanced molecular electronic materials, J. Mater. Chem., 12, 2565-2575 (2002). 

Polymers—Congresses. 2. Microelectronics— Materials—Congresses. 3. Molecular electronics—Materials—Congresses. 

Ratner, M.A. 2002. Introducing molecular electronics. Materials Today 5(2) 20-27. 

Other hand, the photoluminescence spectrum (used a laser photosource) of azomethine/ -CD assembly 7 in DMF gives two maximum peaks at 438.9 and 713.6 nm with an excitation wavelength of 375.0 nm. These results indicate that j8-CD can be used as the insulator for the azomethine backbone 8 and thus increases the stability of molecular electronic materials [29]. 

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