Despite the fact that chemists frequently draw electron density distributions, there are few good methods for
measuring this quantity, which has contributed to many longstanding controversies in chemistry. In this
paper, we report the first application of element specific L absorption spectra and the “white light” sum rule
to a series of nickel complexes, with wide oxidation state range from NiI to NiIV. Nickel L edge X-ray
absorption spectroscopy is turning out to be an excellent quantitative probe of 3d-vacancies.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.