Table 2: Permanent electric dipole moments in Debye of the neutral molecules. References are given for those cases in which the values of the dipole moments have been updated since RATE99.

Species		 $\mu_{\rm D}$ Species $\mu_{\rm D}$ Species $\mu_{\rm D}$ Species $\mu_{\rm D}$ Species $\mu_{\rm D}$

H2		 0 CH 1.46 CH2 0.57 NH 1.3 CH3 0
NH2 1.83 CH4 0 NH3 1.47 OH 1.66 H2O 1.85
HF 1.83 C2 0 C2H 0.8 C2H2 0 CN 1.45
HNC 2.7 HCN 2.98 C2H3 1.5 H2CN 2.54 N2 0
C2H4 0 CO 0.11 C2H5 0 HCO 1.0 SiH 0.12
CH2NH 2.02 SiH2 0.18 NO 0.15 C2H6 0 H2CO 2.33
HOCH 0 SiH3 0 HNO 1.67 SiH4 0 PH 0.64
CH3OH 1.7 O2 0 O2H 2.09 PH2 0.0 HS 0.76
H2O2 1.57 H2S 0.97 C3 0 HCl 1.08 l-C3H 3.1
c-C3H2 3.4 H2CCC 4.1 C2N 0.6 C3H3 4.0 CH2CN 3.99
C2O 1.3 CH3CCH 0.78 SiC 1.7 CH3CN 3.92 HCSi 0.07
NH2CN 0 CH2CO 1.42 SiCH2 ... OCN 0.64 SiN 2.3
SiCH3 0.65 HNSi 0.16 CP 0.86 N2O 0.16 CS 1.96
HCP 0.3 CH3CHO 2.69 CO2 0 SiO 3.1 HCS 1.02
PN 2.75 CH3OCH3 1.3 C2H5OH 1.44 CH2PH 0 H2SiO 3.82
H2CS 1.65 NO2 0.32 NS 1.81 HCOOH 1.41 CCl 1.22
PO 1.88 C4 0 HPO 2.33 SO 1.55 C4H 0.9
C4H2 0 C3N 2.2 C4H3 0 ClO 1.24 HC3N 3.6
NCCN 0 SiC2 2.39 C3O 2.39 CH2CHCN 3.89 SiC2H 1.4
SiNC 2.03 SiC2H2 2.5 CCP 3.5 C2S 2.8 HC2P ...
C2H6CO 2.8 C5 0 HCOOCH3 1.77 OCS 0.71 SiS 1.73
SiO2 0.5 C5H 4.3 C4N 0.14 C5H2 5.9 SO2 1.63
S2 0 CH3C4H 1.21 SiC3 4.2 SiC3H 2.0 ? CH3C3N 4.91
HS2 1.4 H2S2 1.2 C3P 2.77 C3S 3.7 C6 0
C6H 5.0 C6H2 6.2 C5N 3.38 HC5N 4.33 SiC4 6.3
C6H6 0 C4P 4.18 C4S 3.8 C7 0 C7H 4.5
C7H2 7.7 CH3C6H 1.5 CH3C5N 5.75 C8 0 C8H 5.0
C7N 3.0 C8H2 8.2 HC7N 4.62 C9 0 C9H 4.7
C9H2 9.7 CH3C7N 5.47 C10 0 C9N 3.3 HC9N 4.84
Notes: c-C3H = 2.4D; HCCCCH = 0D; H2C3H(propargyl) = 0.14D; H2CCCC = 4.1D from Oswald & Botschwina (1995); HCSi from Smith et al. (2001); HCS from Ochsenfeld et al. (1999); HS2 from Zhuo et al. (1994); CCP from El-Yazal et al. (1997); CCl from Largo et al. (2001); H2SiO from Ma & Schaeffer (1994); CH2CN from Gutsev & Adamowicz (1995); SiCH3 from Kaiser & Osamura (2005); C3P from del Rio et al. (1996); C4P from Yu et al. (2005); C4S from Pascoli & Lavendry (1998); C5N from Botschwina (1996); CnH2, n = 5-9, from Maluendes & McLean (1992).

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