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Table 3

Measured frequencies of the gauche conformer of 2-hydroxyacetonitrile and residuals from the fit (full fit is available at the CDS: S1).

Upper level Lower level Frequency(Unc.) o.-c.
J ′′ a J a (in MHz) (in MHz)

75 0 75 1 74 1 74 1 657 112.073(0.030) 0.0230
75 1 75 1 74 0 74 1 657 112.073(0.030) 0.0230
18 9 9 1 17 8 10 1 657 168.387(0.030) 0.041
18 9 10 1 17 8 9 1 657 168.387(0.030) 0.041
44 10 35 1 44 9 35 0 657 260.517(0.030) 0.002
43 10 34 1 43 9 34 0 657 600.923(0.030) 0.027
12 8 4 1 11 7 4 0 658 010.623(0.030) 0.035
12 8 5 1 11 7 5 0 658 010.623(0.030) 0.035
36 10 27 1 36 9 27 0 659 576.402(0.030) 0.057
28 14 15 0 28 13 15 1 659 608.388(0.030) 0.059
35 10 26 1 35 9 26 0 659 806.414(0.030) 0.017
25 6 19 1 24 5 19 0 659 980.141(0.030) 0.022

Notes.

(a)

Following SPFIT format the torsional substate 0 and 0+ are labeled 0 and 1, respectively.

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