Near Infrared (NIR)-ECD spectra of metallo-protein and metal complexes are known to be sensitive to conformations of the metal’s ligands as well as the configuration around the central metal atom, which is used for structural analysis of these molecules.

The J-1500 CD spectrometer can be used for spectral measurements into the NIR region using an extended wavelength range light source and detector. In this configuration, the InGaAs detector kit includes a halogen lamp unit and allows for measurement up to 1600 nm.