Fig. 6From: Analytical characterization of 5,5′-dibromoindigo and its first discovery in a museum textileCorrelation plot of the experimental Raman peaks for 5,5′-DBI using 532 nm excitation with their associated DFT calculated peaks. The linear regression was used to create a set of “scaled” Raman peak positions that present the best match of experiment and theoryBack to article page