Question

Please answer. Inorganic chemistry

TICS evtra Credit: The reaction of Ta(OR)3 with BH3 results in the formation of (RO)3TaBH3 (R SitBus). The X-ray crystal structure of (RO)3TaBH3 shows that the BH3 group leans over to participate in a 3-center-2-electron Ta-H-B bond. Derive the MO diagram for linear (RO)3TaBH3 in Cav symmetry (structure in brackets) and draw out the orbitals that describe Ta-B bond (5 points). The d-orbitals in C3v symmetry are given below. Determine the Walsh diagram for the perturbation to the isolated complex in Cs symmetry where the BH3 group leans over to form the 3-center-2-electron Ta-H-B bond. (10 points). Draw out the orbital(s) that change in energy with this perturbation. (10 points) HH7 BH3 ROOR ROTOR S ROTORRO OR RO LRO RO RO isolated 2e 1e + a1

Answer 1

Answer Illes GI BH. RO 11 Ta. Ralinin -OR Rolumn la ROOR RO RO isolated Explanation 3ouco *) on B 3cuco) IT g(**) 1 Tg (T1*) & AHR 2 g * 1 u (T) , - - 30860) i v 3 (T) The po 30 g(6) 200* - 2090) Ha