When liquid Fe(CO)5 was first isolated, two structures were postulated, a C4v square pyramidal structure and a D3h trigonal bipyramidal structure. Using the 5 CO stretching vibrations as generating vectors in each of these point groups, generate the corresponding reducible representation, reduce each down to their respective irreps, and determine the symmetries of the IR and Raman active stretching vibrations. Required:
Using this information with knowledge of the experimental data, indicate the correct liquid phase structure of Fe(CO)5.

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.