L. Piseri
9 Papers
115 Citations
L. Piseri is an academic researcher. The author has contributed to research in topics: Polyacetylene & Raman spectroscopy. The author has an hindex of 6, co-authored 9 publications.
Chat about Author
Papers
Polarized infrared spectra of highly oriented polyacetylenes
TL;DR: In this paper, the polarization properties of the infrared bands of pure and halogendoped polyacetylene have been studied using highly oriented samples and the vibrational assignment of pure trans and cis isomers is discussed on the basis of the present polarization data.
47
Lattice dynamics and conjugation length in Trans-polyacetylene
TL;DR: In this paper, a force field for the infinite trans-polyene chain which includes the contribution of delocalized forces is proposed, and the phonon energies throughout the Brillouin zone are evaluated and compared with the i.r. and Raman data of trans polyacetylene and with the C=C streching frequencies of short polyenes.
31
Resonance Raman spectra of highly oriented trans polyacetylene
TL;DR: In this article, the polarization properties of the Raman active phonons of trans polyacetylene have been determined for different scattering configurations at various exciting wavelengths, and it has been shown that the dispersion of Raman bands originates from a distribution of conjugation lengths.
18
Phonons intrans-polyacetylene: delocalized bond—bond interactions
TL;DR: In this paper, the authors derived localized force constants arising from extended π-electronic states for an infinitetrans-polyene chain in the internal coordinate space, which is suitable for the calculation of the phonon dispersion curves in semi-conducting polymer chains.
16
Vibrational spectra of highly oriented polyacetylene.
Paolo Piaggio,Giovanna Dellepiane,R. Tubino,L. Piseri,Giuseppe Zannoni,Giuseppe Zerbi,G. Lugli +6 more
TL;DR: In this paper, the infrared spectra of highly oriented polyacetylenes have been recorded and analyzed in terms of their polarization properties, and the infrared data for the iodine doped polymer are also reported and discussed.
11