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• W2769898038 endingPage "2812" @default.
• W2769898038 startingPage "2796" @default.
• W2769898038 abstract "Peptide bonds (N–C = O) play a key role in metabolic processes since they link amino acids into peptide chains or proteins. Recently, several molecules containing peptide-like bonds have been detected across multiple environments in the interstellar medium, growing the need to fully understand their chemistry and their role in forming larger pre-biotic molecules. We present a comprehensive study of the chemistry of three molecules containing peptide-like bonds: HNCO, NH2CHO, and CH3NCO. We also included other CHNO isomers (HCNO, HOCN) and C2H3NO isomers (CH3OCN, CH3CNO) to the study. We have used the uclchem gas–grain chemical code and included in our chemical network all possible formation/destruction pathways of these peptide-like molecules recently investigated either by theoretical calculations or in laboratory experiments. Our predictions are compared to observations obtained towards the proto-star IRAS 16293−2422 and the L1544 pre-stellar core. Our results show that some key reactions involving the CHNO and C2H3NO isomers need to be modified to match the observations. Consistently with recent laboratory findings, hydrogenation is unlikely to produce NH2CHO on grain surfaces, while a combination of radical–radical surface reactions and gas-phase reactions is a better alternative. In addition, better results are obtained for NH2CHO when a slightly higher activation energy of 25 K is considered for the gas-phase reaction NH2 + H2CO → NH2CHO + H. Finally, our modelling shows that the observed correlation between NH2CHO and HNCO in star-forming regions may come from the fact that HNCO and NH2CHO react to temperature in the same manner rather than from a direct chemical link between the two species." @default.
• W2769898038 created "2017-12-04" @default.
• W2769898038 creator A5015005711 @default.
• W2769898038 creator A5049901895 @default.
• W2769898038 creator A5066335883 @default.
• W2769898038 creator A5083920844 @default.
• W2769898038 creator A5087529957 @default.
• W2769898038 date "2017-11-21" @default.
• W2769898038 modified "2023-10-18" @default.
• W2769898038 title "Chemical modelling of complex organic molecules with peptide-like bonds in star-forming regions" @default.
• W2769898038 cites W1826738425 @default.
• W2769898038 cites W1972568324 @default.
• W2769898038 cites W1980744721 @default.
• W2769898038 cites W1986702566 @default.
• W2769898038 cites W1992321484 @default.
• W2769898038 cites W2001127951 @default.
• W2769898038 cites W2017531437 @default.
• W2769898038 cites W2019578386 @default.
• W2769898038 cites W2024016948 @default.
• W2769898038 cites W2024389974 @default.
• W2769898038 cites W2028976482 @default.
• W2769898038 cites W2032086775 @default.
• W2769898038 cites W2033697868 @default.
• W2769898038 cites W2041579602 @default.
• W2769898038 cites W2042321087 @default.
• W2769898038 cites W2046589040 @default.
• W2769898038 cites W2056621089 @default.
• W2769898038 cites W2065679218 @default.
• W2769898038 cites W2072716591 @default.
• W2769898038 cites W2073223635 @default.
• W2769898038 cites W2073313654 @default.
• W2769898038 cites W2074705265 @default.
• W2769898038 cites W2081670553 @default.
• W2769898038 cites W2084349571 @default.
• W2769898038 cites W2092202334 @default.
• W2769898038 cites W2093481769 @default.
• W2769898038 cites W2095429191 @default.
• W2769898038 cites W2102175885 @default.
• W2769898038 cites W2102869773 @default.
• W2769898038 cites W2105217969 @default.
• W2769898038 cites W2108626611 @default.
• W2769898038 cites W2109541781 @default.
• W2769898038 cites W2112358592 @default.
• W2769898038 cites W2113172499 @default.
• W2769898038 cites W2113951090 @default.
• W2769898038 cites W2116525101 @default.
• W2769898038 cites W2127300181 @default.
• W2769898038 cites W2135082835 @default.
• W2769898038 cites W2146354185 @default.
• W2769898038 cites W2146956686 @default.
• W2769898038 cites W2153071671 @default.
• W2769898038 cites W2159773133 @default.
• W2769898038 cites W2159890286 @default.
• W2769898038 cites W2170292914 @default.
• W2769898038 cites W2171275163 @default.
• W2769898038 cites W2233790594 @default.
• W2769898038 cites W2285360094 @default.
• W2769898038 cites W2329820724 @default.
• W2769898038 cites W2340083868 @default.
• W2769898038 cites W2473649420 @default.
• W2769898038 cites W2527511019 @default.
• W2769898038 cites W2529156293 @default.
• W2769898038 cites W2556231741 @default.
• W2769898038 cites W2572992421 @default.
• W2769898038 cites W2576293918 @default.
• W2769898038 cites W2578394145 @default.
• W2769898038 cites W2603809202 @default.
• W2769898038 cites W2616829910 @default.
• W2769898038 cites W2620864525 @default.
• W2769898038 cites W2623663205 @default.
• W2769898038 cites W2625083004 @default.
• W2769898038 cites W2757878606 @default.
• W2769898038 cites W2915092619 @default.
• W2769898038 cites W2949868509 @default.
• W2769898038 cites W2952210053 @default.
• W2769898038 cites W3097995847 @default.
• W2769898038 cites W3098018368 @default.
• W2769898038 cites W3098107243 @default.
• W2769898038 cites W3098239546 @default.
• W2769898038 cites W3098681222 @default.
• W2769898038 cites W3099394683 @default.
• W2769898038 cites W3099470610 @default.
• W2769898038 cites W3100496936 @default.
• W2769898038 cites W3100599794 @default.
• W2769898038 cites W3101217625 @default.
• W2769898038 cites W3101442519 @default.
• W2769898038 cites W3101478111 @default.
• W2769898038 cites W3101740986 @default.
• W2769898038 cites W3102500414 @default.
• W2769898038 cites W3102762515 @default.
• W2769898038 cites W3102920198 @default.
• W2769898038 cites W3104001772 @default.
• W2769898038 cites W3104041625 @default.
• W2769898038 cites W3105147212 @default.
• W2769898038 cites W3106131492 @default.
• W2769898038 cites W3106271570 @default.
• W2769898038 cites W3122870766 @default.
• W2769898038 cites W3124995313 @default.

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