Biphenyl-2yl-isobutylate (synthesized at Díaz-Calleja’s laboratory at Universidad Politécnica de Valencia),

Albena I. Nielsen, Tage Christensen, Bo Jakobsen, Kristine Niss, Niels Boye Olsen,
Ranko Richert, and Jeppe C. Dyre,THE JOURNAL OF CHEMICAL PHYSICS 130, 154508 (2009)

The data  set is organized as 5 files:
BP2IB.png - the plot of data
BP2IB_Freq.dat - the frequencies
BP2IB_Imag.dat - the imaginary parts
BP2IB_Real.dat - the real parts 
BP2IB_Temp.dat - the temperatures