Functionalized higher acenes: hexacene and heptacene.
نویسندگان
چکیده
We have extended our functionalization strategy for pentacene to the higher acenes hexacene and heptacene. Provided a large enough alkyne substituent is used, these large aromatic rods are both stable and soluble and can be characterized spectroscopically as well as by single-crystal X-ray diffraction.
منابع مشابه
Synthesis and structural characterization of crystalline nonacenes.
Acenes and functionalized acenes have played a pivotal role in the development of organic electronic materials. From the first report of high-mobility organic transistors based on vapor-deposited pentacene, to high-efficiency organic lightemitting diodes based on anthracene, and the remarkable transport properties of rubrene, these linearly fused hydrocarbons have made significant contributions...
متن کاملThe synthesis, crystal structure and charge-transport properties of hexacene.
Acenes can be thought of as one-dimensional strips of graphene and they have the potential to be used in the next generation of electronic devices. However, because acenes larger than pentacene have been found to be unstable, it was generally accepted that they would not be particularly useful materials under normal conditions. Here, we show that, by using a physical vapour-transport method, pl...
متن کاملDecacene: On-Surface Generation.
Acenes are intriguing molecules with unique electronic properties. The difficulties in their preparation owing to low stability under ambient conditions are apparent because successful syntheses of long unsubstituted acenes are still scarce, in spite of the great attention they have attracted. Only unsubstituted acenes up to heptacene have been isolated in bulk, with nonacene being the largest ...
متن کاملTransport Properties of Pentacene, Hexacene and Their Bn Analogues
We have investigated transport properties of higher acenes pentacene and hexacene and compared it with the transport properties of their BN analogues. Charge hopping from one structure to another was investigated through calculations of reorganization energies based on DFT and Marcus semiempiric approach, while the investigation of charge transport along the investigated structures was based on...
متن کاملOpen-shell singlet character of stable derivatives of nonacene, hexacene and teranthene.
The electronic ground states of the recently synthesized stable nonacene derivatives (J. Am. Chem. Soc. 2010, 132, 1261) are open-shell singlets with a polyradical nature instead of closed-shell singlets as originally assumed, according to the unrestricted broken spin-symmetry density functional theory (UBS-DFT) computations (at B3LYP/6-31G*). It is the bulky protecting groups, not the transfer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of the American Chemical Society
دوره 127 22 شماره
صفحات -
تاریخ انتشار 2005