The irradiation of pure CH3OH and 1:1 mixture of NH3:CH3OH ices at 30 K using low energy electrons

被引：34
作者：
Jheeta, Sohan [1 ]
Domaracka, A. [2 ]
Ptasinska, S. [1 ,3 ,4 ]
Sivaraman, B. [5 ]
Mason, N. J. [1 ]
机构：
[1] Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England
[2] Univ Caen Basse, ENSICAEN, CNRS, CEA, Normandie, France
[3] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA
[4] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
[5] Indian Inst Sci, INSPIRE Fac, Bangalore 560012, Karnataka, India
来源：
CHEMICAL PHYSICS LETTERS | 2013年 / 556卷
关键词：
ORGANIC-MOLECULES; INTERSTELLAR ICE; GRAIN MANTLES; METHANOL; ANALOGS; OCN; ENVIRONMENT; REACTIVITY; CHEMISTRY; RELEVANCE;
D O I：
10.1016/j.cplett.2012.11.074
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The results of an experimental investigation of 1 keV electron irradiation of ices (deposited at 30 K) of (i) pure methanol and (ii) of a 1:1 mixture of NH3:CH3OH are reported. Molecular products formed within the ice were detected and monitored using FTIR spectroscopy. The products observed were methyl formate (H3COHCO), methane (CH4), hydroxymethyl (CH2OH), formamide (HCONH2), formic acid (HCOOH), formaldehyde (H2CO), formyl radical (HCO), cyanate ion (OCN-), isocyanic acid (HNCO), carbon monoxide (CO) and carbon dioxide (CO2). The consequences of these results for prebiotic chemistry in the interstellar medium and star forming regions are discussed. Crown Copyright (C) 2012 Published by Elsevier B. V. All rights reserved.
引用
收藏
页码：359 / 364
页数：6
相关论文
共 33 条
[11]   Molecular abundance enhancements in the highly collimated bipolar outflow BHR 71 [J].
Garay, G ;
Köhnenkamp, I ;
Bourke, TL ;
Rodríguez, LF ;
Lehtinen, KK .
ASTROPHYSICAL JOURNAL, 1998, 509 (02) :768-784
[12]   Are gas-phase models of interstellar chemistry tenable? The case of methanol [J].
Garrod, Robin ;
Park, In Hee ;
Caselli, Paola ;
Herbst, Eric .
FARADAY DISCUSSIONS, 2006, 133 :51-62
[13]  
Gerakines PA, 1996, ASTRON ASTROPHYS, V312, P289
[14]   Interstellar ice:: The Infrared Space Observatory legacy [J].
Gibb, EL ;
Whittet, DCB ;
Boogert, ACA ;
Tielens, AGGM .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2004, 151 (01) :35-73
[15]   Searching for ammonia in grain mantles toward massive young stellar objects [J].
Gibb, EL ;
Whittet, DCB ;
Chiar, JE .
ASTROPHYSICAL JOURNAL, 2001, 558 (02) :702-716
[16]  
HENKEL C, 1993, ASTRON ASTROPHYS, V268, pL17
[17]   Laboratory studies of the formation of methanol and other organic molecules by water plus carbon monoxide radiolysis: Relevance to comets, icy satellites, and interstellar ices [J].
Hudson, RL .
ICARUS, 1999, 140 (02) :451-461
[18]   Crystalline water ice on the Kuiper belt object (50000) Quaoar [J].
Jewitt, DC ;
Luu, J .
NATURE, 2004, 432 (7018) :731-733
[19]   The irradiation of 1:1 mixture of ammonia:carbon dioxide ice at 30 K using 1 kev electrons [J].
Jheeta, S. ;
Ptasinska, S. ;
Sivaraman, B. ;
Mason, N. J. .
CHEMICAL PHYSICS LETTERS, 2012, 543 :208-212
[20]   Molecular structure and infrared spectrum of solid amino formate (HCO2NH2):: Relevance to interstellar ices [J].
Khanna, RK ;
Lowenthal, MS ;
Ammon, HL ;
Moore, MH .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2002, 140 (02) :457-464
1234