im afraid not,
umm ok think of it this way formation is O2 is a molecule which means all of its bondong for both atoms are used . so where is carbon going to join ? but if you have o alone, then you get co which is not what you want .so its 2 O .
technically O in element form or standard state is O thats why O2 is not in the periodic table only O. its theory based. But in reality or practically O2 exists as a molecule. consider sulphur and phosphorous. they two are stated as p and s and not p4 and s8 which is what it really exists as