Version	1
Date of Entry	March 2010
Contributor	M. Araki
Lines Listed	9 (H2DO+) 21 (HD2O+) 54 (D3O+)
Frequency / GHz	211 - 717 (H2DO+) 380-719 (HD2O+) 220.4-565.0 (D3O+)
Max J	4 (H2DO+) 7 (HD2O+) 13 (D3O+)
Max K	3 (H2DO+) 3 (HD2O+) 11 (D3O+)
log STR0
log STR1
Isotope Corr.
Egy / (cm-1)
μa / D
μb / D
μc / D
A / MHz
B / MHz
C / MHz
Q(2000.)
Q(1000.)
Q(500.0)
Q(300.0)
Q(225.0)
Q(150.0)
Q(75.00)
Q(37.50)
Q(18.75)
Q(9.375)
References H2DO+ "Microwave spectrum of the H2DO+ ion: Inversion-rotation transitions and inversion splitting," T. Furuya, S. Saito, and M. Araki, Journal of Chemical Physics, Volume 127, Pages 244314(2007). HD2O+ "Microwave spectrum of the HD2O+ ion: Inversion-rotation transitions and inversion splitting," T. Furuya and S. Saito, Journal of Chemical Physics, Volume 128, Pages 034311(2008). D3O+ "Experimental determination of the ground-state inversion splitting in D3O+ by microwave spectroscopy," M. Araki, H. Ozeki, and S. Saito, Journal of Chemical Physics, Volume 109, Pages 5707 -5709(1998). "Microwave spectrum of the inversion-rotation transitions of the D3O+ ion: Δk = ±3n interaction and equilibriumstructure," M. ARAKI, H. OZEKI and S. SAITO, Molecular Physics, Volume 97, Pages 177 -183(1999). "Laboratory measurement of the J, K =1, 0--0, 0+ transition of ortho-D3O+," T. Furuya and S. SAITO, Astronomy & Astrophysics, Volume 441, Pages 1039-1041(2005). Ion-drift corrected frequencies are listed in ToyaMA. There is a typo in Table 1. The correct footnote is e (not c) for the 12- - 12+ transition at 458363.458(8) GHz.