Determine the structure for a compound Z with formula C10H803. The infrared spectrum shows strong bands at 1720 and 1620 am-1. In addition, the infra red spectrum has bands at 1580, 1508, 1464, and 1125 cm-1. The proton NMR spectrum, with expensions, along with the COSY and DEPT are provided in this problem. Assign all of the protons and carbons for this compound. Analyse the compound as complete as possible IR, 1H, DEPT and COSY. Finally, draw the expected molecular structures of compound Z with their IUPAC nomenclature.