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Table A.3

Spectroscopic data of the gGg ethylene glycol lines displayed in Fig. 4.

frequency Quantum numbera A u,l g up E up
(MHz) JKa,Kc, v(up) JKa,Kc, v(low) (s-1) (K)

217 539.718 22(2,20), v = 0 21(2,19), v = 1 1.495E-04 315 126.6
218 712.336 22(3,20), v = 1 21(3,19), v = 0 1.512E-04 315 126.7
220 249.787 22(2,20), v = 1 21(2,19), v = 0 1.550E-04 405 126.7
229 906.833 24(2,23), v = 1 23(1,22), v = 1 1.013E-04 343 142.7
231 212.070 24(1,23), v = 1 23(1,22), v = 0 1.210E-04 441 142.7
231 366.043 25(1,25), v = 0 24(1,24), v = 1 1.185E-04 357 147.0
231 366.176 25(0,25), v = 0 24(0,24), v = 1 1.184E-04 459 147.0
232 706.108 25(0,25), v = 1 24(1,24), v = 1 1.199E-04 357 147.1
232 706.561 25(1,25), v = 1 24(0,24), v = 1 1.201E-04 459 147.1
233 690.540 22(4,18), v = 1 21(4,17), v = 0 1.118E-04 405 134.2
234 047.938 25(1,25), v = 1 24(1,24), v = 0 1.225E-04 459 147.1
234 048.079 25(0,25), v = 1 24(0,24), v = 0 1.226E-04 357 147.1
234 150.007 23(8,15), v = 0 22(8,14), v = 1 1.039E-04 423 166.1
236 771.321 23(6,17), v = 0 22(6,16), v = 1 1.139E-04 423 153.1
236 845.214 23(7,17), v = 1 22(7,16), v = 0 1.102E-04 423 159.0
236 864.590 23(3,20), v = 1 22(3,19), v = 0 1.058E-04 329 142.4
245 205.575 25(2,23), v = 0 24(3,22), v = 0 1.714E-04 459 160.6
245 215.148 24(7,18), v = 0 23(7,17), v = 1 1.232E-04 441 170.8
245 238.282 24(12,12), v = 1 23(12,11), v = 0 1.016E-04 441 216.4
245 238.282 24(12,13), v = 1 23(12,12), v = 0 1.016E-04 343 216.4
245 424.852 24(11,14), v = 1 23(11,13), v = 0 1.073E-04 343 205.3
245 424.853 24(11,13), v = 1 23(11,12), v = 0 1.073E-04 441 205.3
245 681.514 24(10,15), v = 1 23(10,14), v = 0 1.126E-04 343 195.2
245 681.559 24(10,14), v = 1 23(10,13), v = 0 1.126E-04 441 195.2
245 742.900 24(6,19), v = 0 23(6,18), v = 1 1.280E-04 441 164.8
246 042.955 24(9,16), v = 1 23(9,15), v = 0 1.176E-04 343 186.0
246 044.081 24(9,15), v = 1 23(9,14), v = 0 1.176E-04 441 186.0
250 230.085 19(4,15), v = 0 18(3,15), v = 1 1.043E-04 351 102.1
250 473.822 25(4,22), v = 0 24(4,21), v = 1 1.059E-04 357 166.5

Notes.

(a)

Tunnelling is observed between two equivalent equilibrium configurations and splits each rotational level into two distinct states designated v = 0 and v = 1 (BD15).

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