Several techniques in X-ray spectroscopy have emerged as powerful tools to analyzing molecular and electronic structure, and dynamics . In particular, resonant inelastic X-ray scattering (RIXS) and X-ray emission (XE) spectroscopy has been a forerunner in the investigation of a gamut of chemical systems in both gas and condensed phases . For light elements, fluorescence decay is a minority channel in relation to Auger decay, but it is more readily associated with a molecular orbital analysis. Hence, the emitted photons give a rich probe containing convoluted information about structural, electronic and dynamical degrees of freedom . The RIXS technique has revealed precise quantum mechanical effects at play at the molecular level and have been able to map accurately the photo-physical and photo-chemical processes even at the ultra-fast regime .