Electronic structure of two-band molecular conductors

New Journal of Chemistry

Volumn 21, Issue 11, 1997, Pages 1147-1159

  Canadell, Enric ^a  

^a UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000689912     PISSN: 11440546     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (46)

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41. Ravy S., personal communication.
42. An obvious way to create two-band systems is by coupling two molecular donors and/or acceptors. A recently studied case is bis(dimethyltetrathiafulvalene)ethane, which led to several charge transfer salts. However, the coupling between the two units leads to a too-small energy gap between the two orbitals of the molecular species. Consequently, the two molecular moities behave almost independently and the salts are not two-band systems. See: Dolbecq A., Boubekeur K., Batail P., Canadell E., Auban-Senzier P., Coulon C., Lerstrup K., Bechgaard K., J. Mater. Chem., 1995, 5, 1707.
43. 2 chains and consequently, the system must be semiconducting. It thus could be thought that at higher temperatures, if stable, this system could be an undoped metal. Although this is probably not likely, this system provides some support for our speculations.
44. 2 stronger metal-metal interactions can lead to differences in the structure with respect to the BEDT-TTF salts.
45. See for instance: Doublet M.-L., Canadell E., Pouget J.-P., Shibaeva R. P., J. Phys. I (France), 1994, 4, 1439.
46. For an interesting suggestion, see: Kato R., Liu Y.-L., Aonuma S., Sawa M., Synth. Metals., 1997, 96, 2087.