Experimental and Theoretical Investigations of the Existence of Cu<sup>II</sup>, Cu<sup>III</sup>, and Cu<sup>IV</sup>in Copper Corrolato Complexes
W. Sinha, M.G. Sommer, N. Deibel, F. Ehret, M. Bauer, B. Sarkar, S. Kar, Angewandte Chemie International Edition 54 (2015) 13769–13774.