The d2 ions have been reported. a. Which of these has the largest value of Which ha...

The d² ions have been reported.

a. Which of these has the largest value of Which has the smallest? Explain briefly.

b. Of the first three, which ion has the shortest metal– oxygen bond distance? Explain briefly.

c. The charge-transfer transitions for the first three complexes occur at 43,000, 33,000, and 21,000 cm^-1, respectively. Are these more likely to be ligand-to-metal or metal-to-ligand charge-transfer transitions? Explain briefly. (See T. C. Brunhold, U. Güdel, Inorg. Chem ., 1997 , 36 , 2084.)