Rotational analysis of the B-2 Sigma(+)-X-2 Sigma(+) bands of (CO+)-C-12-O-18

The emission spectrum of the B(2)Sigma(+) - X(2)Sigma(+) (First Negative) system of the molecular ion (CO+)-C-12-O-18 have been photographed at a resolution sufficient to observe the spin splitting of the lines with N GT 18. Four bands, 0-1, 0-3, 1-4 and 2-5, have been rotationally analyzed and the molecular constants of the B(2)Sigma(+), nu = 0, 1, 2 and X(2)Sigma(+), nu = 1, 3, 4, 5 have been obtained