(1) write the mechanism for the two steps of the hydroboration/oxidation reaction of indene. (2) compare the ir spectra of your purified product and the indene starting material. they will be rather similar, with one big difference. describe the nature (frequency, broadness, strength) of the new peak in the product spectrum, and explain what functional group this new peak denotes. (3) a key concept in 13c nmr spectroscopy is symmetry - if two carbon atoms are related by symmetry, only one peak is seen for them in the spectrum. with that in mind, how many peaks would you expect to see in the 13c nmr spectra of the following molecules?