On the question of metallic "poly(carbon diselenide)"

Y. Okamoto, L. S. Choi, Z. Iqbal, R. H. Baughman

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


In 1982, we found that when carbon diselenide in organic solvents such as methylene chloride or dioxane was pressurized at about 5 Kbar and heated at 100°C for several hours, a black solid was obtained in >95% yield. The solid was amorphous and electrically insulating (<10-12 S cm-1), but when this compound was heated at 160 °C it was transferred to a different material which was found to be a semiconductor (10-3 S cm-1). In a series of recent papers, Kobayashi and coworkers have reported the synthesis of a metallic crystalline poly(carbon diselenide) via the pressurization and annealing of pure liquid CSe2 instead of its solution. Using a variety of techniques, we find that the metallic poly(carbon diselenide) synthesized is a mixture of an amorphous CSe polymeric material and trigonal selenium. Percolation of the CSe polymer probably provides the observed metallic conductivity of the material ({A figure is presented}. The relationship between structure and electrical properties of poly(carbon diselenide) prepared under various conditions is discussed.

Original languageEnglish (US)
Pages (from-to)265-275
Number of pages11
JournalSynthetic Metals
Issue number1-3
StatePublished - Feb 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'On the question of metallic "poly(carbon diselenide)"'. Together they form a unique fingerprint.

Cite this