Knowledge Bank

The zero-field splittings $\mathrm{<mrow\; data-mjx-texclass="ORD">3</mrow>}\Sigma (1X2)-\mathrm{<mrow\; data-mjx-texclass="ORD">3</mrow>}\Sigma (0X1)$ in the ground states of the three diatomic molecules $Se2$, TeSe, and $Te3$ have been observed in infrared absorption in neon, argon, and krypton matrices at $4K\mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}$ The magnetic-dipole character of these transitions was verified by the broadening effects of applied magnetic fields of up to 4T. The relative matrix shifts and Zeeman effects are discussed.