provide answer for each step thoroughly and complete

2. (25 points) An unknown compound has a molecular formula C6H7NS and the following R spectrum. Please assign five IR-absorption bands and provide the structure of this unknown: IR (KRr Rellet ) - Brief reasoning on how you deduced this structure from the available data: Explain briefly why there are two bands at 3360 and 3440cm1; what are the vibrational modes involved