Spectroscopic determination of the vibrational frequencies of the first 1B1 excited state of LiOLi

From the assignment of more than 30 vibronic transitions from the X̃1Σ+g(0,0,0) ground state to the 1B1,K′=1(ν′1,ν′2,ν′3) excited states, the vibrational frequencies ω′1,ω′2,ω′3, the anharmonicity constants x11 and x22, and the mode-coupling constant x23 of the lowest excited 1B1 (K′=1) state of 7Li16O7Li have been determined.