Interstellar C_2 Molecule Detected in UV Spectra of Reddened Stars

$C_2$ molecule is sometimes considered as a crucial component of carriers of some diffuse interstellar bands. Using UV data achieved by spectrometer STIS fed with HST we detected interstellar $C_2$ lines for few reddened target stars. We tried to verify the idea that intensity of $C_2$ lines around 2313 \AA is correlated with some diffuse interstellar bands.