Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative 2D IR spectra of PAAD+ in water for waiting times of 100 fs (top), 500 fs (middle), and 1 ps (bottom) focusing on the positive feature that we analyze to extract the frequency correlations. Blue circles correspond to the center line points determined from the spectrum. The red line is the linear fit to the center line.
