A form of this molecule can be indirectly measured by EPR spectroscopy by measuring the nitroxide radicals this molecule forms upon reacting with TEMPD (“temp-dee”). Exposing this molecule to very high pressures allows it to transition into a superconducting “zeta phase.” The impact of this molecule on dye lasers can be minimized through the addition of DABCO. This molecule (10[1])pairs with itself through antiparallel spins in its liquid state, which allows (10[1])it (10[1])to violate Curie’s law. (-5[1])This molecule’s (10[1])ability to act as a diradical can be explained (10[1]-5[1])by its two degenerate (10[1]-5[1])half-filled (10[1])pi-star orbitals (10[1])according (10[1])to MO theory. (10[2])This molecule is converted from its unstable singlet state (10[3])to its stable (10[2])triplet state during photodegradation. (-5[1])For 10 points, name this reactive diatomic molecule (10[1])that is the second most abundant in the atmosphere. ■END■ (10[4])