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Table B.4

Grain-surface/ice-mantle hydrogen-abstraction reactions involved in the formation of butane, pentane, propyl cyanide, butyl cyanide, and related radicals.

# Reaction EA (K) Ref.
61 H2OH + CH3CN → CH3OH + H2CN 6200 Evans-Polanyi
62 H2OH + C2H5CN → CH3OH + H2CH2CN 6490 Evans-Polanyi
63 H2OH + C2H5CN → CH3OH + CH3HCN 5990 Evans-Polanyi
64 CH3 + CH3CN → CH3OH + H2CN 2070 Evans-Polanyi
65 CH3 + C2H5CN → CH3OH + H2CH2CN 2340 Evans-Polanyi
66 CH3 + C2H5CN → CH3OH + CH3HCN 1950 Evans-Polanyi
67 CH3 + C3H7CN → CH3OH + H2CH2CH2CN 3660 Evans-Polanyi
68 CH3 + C3H7CN → CH3OH + CH3HCH2CN 3260 Evans-Polanyi
69 CH3 + C3H7CN → CH3OH + CH3CH2HCN 3260 Evans-Polanyi
70 CH3 + i-C3H7CN → CH3OH + CH3(CH3)CN 3260 Evans-Polanyi
71 CH3 + i-C3H7CN → CH3OH + H2CH(CH3)CN 3660 Evans-Polanyi
72 CH3 + C2H6 → CH3OH + H2CH3 3560 Evans-Polanyi
73 CH3 + C3H8 → CH3OH + CH3HCH3 3260 Evans-Polanyi
74 CH3 + C3H8 → CH3OH + H2CH2CH3 3660 Evans-Polanyi
75 CH3 + C4H10 → CH3OH + H2CH2CH2CH3 3450 Evans-Polanyi
76 CH3 + C4H10 → CH3OH + CH3HCH2CH3 3060 Evans-Polanyi
77 CH3 + i-C4H10 → CH3OH + CH3(CH3)CH3 3310 Evans-Polanyi
78 CH3 + i-C4H10 → CH3OH + H2CH(CH3)CH3 3700 Evans-Polanyi
79 H2 + CH3CN → NH3 + H2CN 2680 Evans-Polanyi
80 H2 + C2H5CN → NH3 + CH3HCN 2480 Evans-Polanyi
81 H2 + C2H5CN → NH3 + H2CH2CN 3280 Evans-Polanyi
82 H2 + C3H7CN → NH3 + CH3HCH2CN 5160 Evans-Polanyi
83 H2 + C3H7CN → NH3 + CH3CH2HCN 5160 Evans-Polanyi
84 H2 + C3H7CN → NH3 + H2CH2CH2CN 5980 Evans-Polanyi
85 H2 + i-C3H7CN → NH3 + H2CH(CH3)CN 5980 Evans-Polanyi
86 H2 + i-C3H7CN → NH3 + CH3(CH3)CN 5160 Evans-Polanyi
87 H2 + C2H6 → NH3 + H2CH3 5770 Hennig & Wagner (1995)
88 H2 + C3H8 → NH3 + CH3HCH3 5150 Evans-Polanyi
89 H2 + C3H8 → NH3 + H2CH2CH3 5980 Evans-Polanyi
90 H2 + C4H10 → NH3 + H2CH2CH2CH3 5550 Evans-Polanyi
91 H2 + C4H10 → NH3 + CH3HCH2CH3 4730 Evans-Polanyi
92 H2 + i-C4H10 → NH3 + H2CH(CH3)CH3 6100 Evans-Polanyi
93 H2 + i-C4H10 → NH3 + CH3(CH3)CH3 5290 Evans-Polanyi
94 H + CH3CN → H2O + H2CN 500 Kurylo & Knable (1984)
95 H + C2H3CN → H2O + C2H2CN 4000 Evans-Polanyi
96 H + C2H5CN → H2O + H2CH2CN 1200 Estimate, based on #103
97 H + C2H5CN → H2O + CH3HCN 1000 Estimate, based on #104
98 H + C3H7CN → H2O + H2CH2CH2CN 1000 Estimate, based on #103
99 H + C3H7CN → H2O + CH3HCH2CN 800 Estimate, based on #104
100 H + C3H7CN → H2O + CH3CH2HCN 800 Estimate, based on #104
101 H + i-C3H7CN → H2O + H2CH(CH3)CN 1000 Estimate, based on #103
102 H + i-C3H7CN → H2O + CH3(CH3)CN 800 Estimate, based on #104
103 H + C2H6 → H2O + H2CH3 1000 Atkinson et al. 2001
104 H + C3H8 → H2O + H2CH2CH3 1310 Hu et al. (1997)
105 H + C3H8 → H2O + CH3HCH3 1120 Hu et al. (1997)
106 H + C4H10 → H2O + H2CH2CH2CH3 823 Greiner (1970)
107 H + C4H10 → H2O + CH3HCH2CH3 428 Greiner (1970)
108 H + i-C4H10 → H2O + H2CH(CH3)CH3 823 Estimate, based on #105
109 H + i-C4H10 → H2O + CH3(CH3)CH3 428 Estimate, based on #106

Notes. Dots indicate which carbon atom hosts the radical site (i.e. an unpaired electron), where appropriate. The origins of each adopted activation energy are indicated.

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