THz extended spectrum of the monodeuterated methyl formate (DCOOCH3)

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Volume 576 (April 2015)

A&A, 576 (2015) A39

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Table 3

Rotational constants in the RHO axis system (RAM) and in the principal axis system (PAM) for DCOOCH₃.

	Margulès et al. (2010)		This work
	(RAM)^a	(PAM)^b	(RAM)^c	(PAM)^d

A (MHz)	16430.65(38)	18416.97(37)	16429.49(27)	18417.74(27)
B (MHz)	8780.79(28)	6794.48(30)	8782.71(23)	6794.45(25)
C (MHz)	5121.065(11)	5121.065(11)	5121.765(26)	5121.765(26)
D_ab (MHz)	–4374.98(24)		–4376.86(20)
<(i,a)		50.903		50.9200(24)
θ _RAM		24.42		24.43064(93)
σ ^e	1.11		0.97
N^f of transitions	1703		3763
N^g of fitted parameters	24		27

Notes.

^(a)

Rotational constants obtained in the former work for RAM-axis system (Margulès et al. 2010).

^(b)

Rotational constants of the former work transformed to the principal axis system and angles <(i,a) and θ_RAM in degrees between the principal a-axis and the methyl top axis (i) and between the principal a-axis and the RAM a-axis (Margulès et al. 2010).

^(c)

Rotational constants obtained in this work for the RAM-axis system (see Table 2).

^(d)

Rotational constants of this work transformed to the principal axis system and angles <(i,a) and θ_RAM in degrees between the principal a-axis and the methyl top axis (i) and between the principal a-axis and the RAM a-axis.

^(e)

Unitless standard deviation.

^(f)

Number of transitions included in the fit.

^(g)

Number of fitted Hamiltonian parameters.

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