Why Is Uranyl Formohydroxamate Red? #chempaperaday 236

Colors tell a lot in inorganic chemistry. While most of the reported U(VI) complexes are red, the complex in question here was reported as red. So, the reason was investigated and two factors were found to explain the color. If you are interested, you can read it here:

http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.5b00262