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Table 1

Spin symmetries of molecules with 24 H or D nuclei.

H2 3A B D2 6A 3B

I = 1 I = 0 I = 0,2 I = 1
gI = 3 gI = 1 gI = 6 gI = 3
ortho para ortho para
H3 4A1 2E D3 10A1 A 2 8E

I = 3/2 I = 1/2 I = 1,3 I = 0 I = 1,2
gI = 4 gI = 4 gI = 10 gI = 1 gI = 16
ortho para meta para ortho
H4 5A1 E 3F1

I = 2 I = 0 I = 1
gI = 5 gI = 2 gI = 9
meta para ortho
D4 15A1 6E 15F1 3F2

I = 0,2,4 I = 0,2 I = 1,2,3 I = 1
gI = 15 gI = 12 gI = 45 gI = 9

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