Two electrically different molecular conductors based on unsymmetrical Au(III)-Dithiolene complexes with similar crystal structures

Kazuya Kubo, Akiko Nakao, Yasuyuki Ishii, Masafumi Tamura, Reizo Kato, Gen Etsu Matsubayashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The cation radical salt based on unsymmetrical metal-dithiolene complexes [Au(ppy)(C 8H 4S 8)] 2[PF 6] (1) is a semiconductor with small activation energy under ambient pressure, and shows metallic behavior under high pressure. On the other hand, [Au(ppy)(C 8H 4 S 6O 2)] 2[BF 4] (2) is an insulator in spite of the structural similarity. Effective conduction pathways through the S⋯S contacts were found in the crystal structure of 1. However, the crystal of 2 contains no such conduction pathways. Comparison of the energy band structures of 1 and 2 suggests that even a subtle difference in cation arrangements makes a remarkable difference between the electrical properties of 1 and 2.

Original languageEnglish
Pages (from-to)417-420
Number of pages4
JournalJournal of Low Temperature Physics
Volume142
Issue number3-4
DOIs
Publication statusPublished - 2006 Feb
Externally publishedYes

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Band structure
Cations
conductors
Crystal structure
Positive ions
cations
conduction
crystal structure
Metal complexes
energy bands
Electric properties
Activation energy
Salts
electrical properties
insulators
Semiconductor materials
activation energy
salts
Crystals
metals

Keywords

  • 71.20.Rv
  • 72.20.-i
  • 75.30.Cr
  • 75.30.Kz

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Two electrically different molecular conductors based on unsymmetrical Au(III)-Dithiolene complexes with similar crystal structures. / Kubo, Kazuya; Nakao, Akiko; Ishii, Yasuyuki; Tamura, Masafumi; Kato, Reizo; Matsubayashi, Gen Etsu.

In: Journal of Low Temperature Physics, Vol. 142, No. 3-4, 02.2006, p. 417-420.

Research output: Contribution to journalArticle

Kubo, Kazuya ; Nakao, Akiko ; Ishii, Yasuyuki ; Tamura, Masafumi ; Kato, Reizo ; Matsubayashi, Gen Etsu. / Two electrically different molecular conductors based on unsymmetrical Au(III)-Dithiolene complexes with similar crystal structures. In: Journal of Low Temperature Physics. 2006 ; Vol. 142, No. 3-4. pp. 417-420.
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