Document Detail

Hydrogen bond-promoted metallic state in a purely organic single-component conductor under pressure.
MedLine Citation:
PMID:  23299894     Owner:  NLM     Status:  In-Data-Review    
Purely organic materials are generally insulating. Some charge-carrier generation, however, can provide them with electrical conductivity. In multi-component organic systems, carrier generation by intermolecular charge transfer has given many molecular metals. By contrast, in purely organic single-component systems, metallic states have rarely been realized although some neutral-radical semiconductors have been reported. Here we uncover a new type of purely organic single-component molecular conductor by utilizing strong hydrogen-bonding interactions between tetrathiafulvalene-based electron-donor molecules. These conductors are composed of highly symmetric molecular units constructed by the strong intra-unit hydrogen bond. Moreover, we demonstrate that, in this system, charge carriers are produced by the partial oxidation of the donor molecules and delocalized through the formation of the symmetric intra-unit hydrogen bonds. As a result, our conductors show the highest room-temperature electrical conductivity and the metallic state under the lowest physical pressure among the purely organic single-component systems, to our knowledge.
Takayuki Isono; Hiromichi Kamo; Akira Ueda; Kazuyuki Takahashi; Akiko Nakao; Reiji Kumai; Hironori Nakao; Kensuke Kobayashi; Youichi Murakami; Hatsumi Mori
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nature communications     Volume:  4     ISSN:  2041-1723     ISO Abbreviation:  Nat Commun     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528555     Medline TA:  Nat Commun     Country:  England    
Other Details:
Languages:  eng     Pagination:  1344     Citation Subset:  IM    
The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
Data Bank Information
Bank Name/Acc. No.:
PubChem-Substance/160649153;  160649154
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