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¹³O has been produced in the reaction ¹⁶O(³He, ⁶He)¹³O at E(³He) = 65 MeV; the mass excess of ¹³O is 23.11 ± 0.07 MeV (CE66). ¹³O is then bound with respect to ¹²N + p by 1.54 MeV. A computation using three other members of the T = 3/2 quartet predicts M - A(¹³O) = 23.10 ± 0.05 (CE66).

¹³O has also been reported in the ¹⁴N(p, 2n)¹³O reaction initiated by 50 MeV protons: τ_1/2 = 8.7 ± 0.4 msec. ¹³O is a delayed proton emitter decaying via ¹³N*(8.92, 9.52) to ¹²C + p. The relative intensities are 100:24; on this scale the intensities of possible transitions to ¹³N*(7.39; 5/2^-) is < 15, log ft > 5.5 (MC65G). On the basis of charge symmetry, and the ¹³B β^- decay, the half-life of ¹³O should be 7.7 ± 0.8 msec and the β⁺ branching to ¹³N*(0, 3.51, 7.39, 8.92, 9.52) should be, respectively, (89 ± 11)%, (10 ± 2)%, (0.24 ± 0.06)%, (0.57 ± 0.12)% and < 0.2% (JO69E).

See also (GO60P, ZE60A, BA61F, BA63T, VL63, GO64J, JA65C, GO66J, KE66C, GA69M).