Show with a ChemDraw diagram how the nitrate ligand might bind bidentate

4. In discussing the actinides, a standard reference text reads: There are a great many actinide nitrato complexes, many of which are important in the separation procedures whereby the elements are extracted from aqueous nitric acid into nonpolar solvents. Of these, the UO22+ complexes are the best characterized; they are typically eight-coordinate with two bidentate NO3ions and two neutral ligands (H20, THF, DMSO, and R3PO) forming a distorted equatorial hexagon. [DMSO is dimethylsulfoxide; R = alkyl or aryl. The two oxo ligands in UO2-* are trans. ] a. Show with a ChemDraw diagram how the nitrate ligand might bind bidentate (4 pts). b. What atom of a trialkylphosphine oxide is most likely to coordinate to any metal center? Apply VSEPR as necessary (4 pts). c. Based on this evidence, is UO22+ a hard or a soft acid? Justify your answer. What is the f- electron configuration of uranium in UO22*? (4 pts). d. What atom of dimethylsulfoxide is most likely to coordinate to uranium? Your answer should include a clear structure obtained from VSEPR, and rendered in ChemDraw. What is the geometry at sulfur? (6 pts)