Sequence dependence of low-frequency Raman-active modes in nucleic acids

Published

Journal Article

We have measured the low-frequency (<200 cm-1) Raman activity of dehydrated fibers and films of polynucleotides and random-sequenced nucleic acids. The spectra exhibit a pronounced, unresolved band in the range 10150 cm-1. A nonlinear least-squares algorithm optimally fits the spectra from all samples with three low-frequency modes in the range 25100 cm-1 and a fourth mode near 200 cm-1. A mode near 25 cm-1 is sequence independent, but does shift to marginally higher frequency in RNA. The mode frequencies and oscillator strengths of two modes in the range 35100 cm-1 exhibit sequence dependence. © 1991 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Edwards, G; Liu, C

Published Date

  • January 1, 1991

Published In

Volume / Issue

  • 44 / 4

Start / End Page

  • 2709 - 2717

International Standard Serial Number (ISSN)

  • 1050-2947

Digital Object Identifier (DOI)

  • 10.1103/PhysRevA.44.2709

Citation Source

  • Scopus