Indium <i>K</i>α radiation from a MetalJet X-ray source: the long way to a successful charge-density investigation

The MetalJet X-ray source provides indium K α radiation with a wavelength even shorter than Ag radiation. This paper reports on problematic spectral impurities and presents possible countermeasures so that collection of data excellent quality up to high resolution is possible. It demonstrated these can be used in the refinement multipole model, results which are for topological analysis assess bonding situation sulfur ylide compound.