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Table 4

Selection of elements and chemical (gas+ice) species in the large network.

13 elements H, He, C, N, O, Ne, Na, Mg, Si, S, Ar, Fe, PAH

(H) H, H+, H, H2, H, H, H 7
(He) He, He+, 2
(He–H) HeH+, 1
(CH) C, C+, C++, CH, CH+, CH2, CH, CH3, CH, CH4, CH, CH, 12
(CC) C2, C, C2H, C2H+, C2H2, C2H, C2H3, C2H, C2H4, C2H, C2H5, C2H,
C3, C, C3H, C3H+, C3H2, C3H, C3H,
C4, C, C4H+, 23
(C–N) CN, CN+, HCN, HCN+, HCNH+, HNC, H2CN, OCN, OCN+, 9
(C–O) CO, CO+, HCO, HCO+,
CO2, CO, HCO, C2O, C2O+, HC2O+,
H2CO, H2CO+, CH3O, H3CO+, CH2OH,
CH3OH, CH3OH+, CH3OH, 18
(C–S) CS, CS+, HCS, HCS+, H2CS, H2CS+, H3CS+,
OCS, OCS+, HOCS+, 10
(N–H) N, N+, N++, NH, NH+, NH2, NH, NH3, NH, NH, 10
(N–N) N2, N, HN, 3
(N–O) NO, NO+, NO2, NO, HNO, HNO+, H2NO+, 7
(N–S) NS, NS+, HNS+ 3
(O–H) O, O+, O++, OH, OH+, H2O, H2O+, H3O+, 8
(O–O) O2, O, O2H+, 3
(O–S) SO, SO+, SO2, SO, HSO, 5
(S–H) S, S+, S++, HS, HS+, H2S, H2S+, H3S+, 8
(Si–H) Si, Si+, Si++, SiH, SiH+, SiH2, SiH, SiH3, SiH, SiH4, SiH, SiH, 12
(Si–C) SiC, SiC+, HCSi+, 3
(Si–N) SiN, SiN+, HNSi+, 3
(Si–O) SiO, SiO+, SiOH+, 3
(Si–S) SiS, SiS+, HSiS+, 3
(Na) Na, Na+, Na++, 3
(Mg) Mg, Mg+, Mg++, 3
(Fe) Fe, Fe+, Fe++, 3
(Ne) Ne, Ne+, Ne++, 3
(Ar) Ar, Ar+, Ar++, 3
(PAH) PAH-, PAH, PAH+, PAH++, PAH+++, 5
ice all neutral gas species except noble gases have ice counterparts 64

species total 235

Notes. Neutral more stable molecules are indicated in bold font.

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