The bond length of CoKr+

Rotationally resolved photodissociation spectra of CoKr+ have been observed for an electronic transition in the isolated ion. Analysis yields rotational constants and the angular momentum (spin plus orbit) for both states in the transition. The bond length in vibrationless level of the ground state of this ion is determined to be r0 = 2.447 ± 0.005 Å with a rotational structure consistent with a 3Δ3 electronic state. Excited-state diabatic dissociation limits enable the determination of the adiabatic binding energy of ground state of CoKr+ as D0 = 5405 ± 15 cm−1. These data are discussed in comparison with similar observations in CoAr+ and CoXe+.