Remnant Cis Bonds in 'Trans'-Polyacetylene

Autor: Ronald J. Weagley, William M. Prest, Samuel Kaplan, Arthur J. Epstein, Ralph A. Mosher, Harry W. Gibson
Rok vydání: 1985
Předmět:
Zdroj: Molecular Crystals and Liquid Crystals. 117:315-318
ISSN: 0026-8941
DOI: 10.1080/00268948508074644
Popis: We report the infrared spectra of “trans”-polyacetylene that has been thermally prepared from c/s-(CH)x. The minimum of 5-7 percent residual 740 cm−1 absorption observed for all cases studied is suggested to be due to isolated remnant c/s linkages. It is shown that these remnant cis linkages may confine the neutral soliton and hence affect the neutral soliton diffusion coefficient. Implications for the soliton generation mechanisms and for conjugation lengths derived from Raman spectra are pointed out.
Databáze: OpenAIRE