Dissociation of dimethyl sulfide on water ice initiated by low-energy (<20 eV) electrons
文献信息
Hassan Abdoul-Carime, Léon Sanche
Dimethyl sulfide (CH3SCH3) is the most widespread of biogenic sulfur compounds responsible for sulfur aerosol production in the atmosphere. Here, we show that low-energy electrons, produced by ionization in the upper troposphere, can dissociate DMS and generate a variety of anion fragments, e.g., H−, CH2−, CH3−, S−, SH−, SCH2− and SCH3− as well as their neutral counterparts, e.g., CH3SCH2, HSCH3, SCH3, (CH3)2, CH2CH3, CH4, CH3, respectively. The ions H−, CH2− and CH3− arise from dissociative electron attachment (DEA) below 13 eV and from direct dipolar dissociation above that energy. The other anions, which contain a sulfur atom, appear to be formed only via DEA. The anion desorption yields for CH3SCH3 adsorbed on water ice were measured between 1 and 18 eV. In units of 10−3 anion per incident electron and per cm3, these yields averaged over the 1–18 eV range are 60 (H−), 0.1 (CH2−), 1.0 (CH3−), 1.2 (S−), 0.1 (SH−), 0.1 (SCH2−) and 0.3 (SCH3−).
相关文献
Temperature dependent structured absorption spectra of molecular chlorine
I. A. K. Young, C. Murray, C. M. Blaum, R. A. Cox, R. L. Jones, F. D. Pope
DOI: 10.1039/C1CP21337G
Hydroxideoxidation and peroxide formation at embedded binuclear transition metal sites; TM = Cr, Mn, Fe, Co
M. Busch, E. Ahlberg, I. Panas
DOI: 10.1039/C1CP20487D
π-Stacking between Casiopeinas® and DNA bases
Rodrigo Galindo-Murillo, Joseelyne Hernandez-Lima, Mayra González-Rendón, Lena Ruíz-Azuara, Rafael Moreno-Esparza
DOI: 10.1039/C1CP20183B
Structures, spectroscopic properties and redox potentials of quaterpyridyl Ru(ii) photosensitizer and its derivatives for solar energy cell: a density functional study
Qing-Jiang Pan, Yuan-Ru Guo, Li Li, Samuel O. Odoh, Hong-Gang Fu, Hong-Xing Zhang
DOI: 10.1039/C1CP00030F
Excited-state N–H⋯S hydrogen bond between indole and dimethyl sulfide: time-dependent density functional theory study
Yufang Liu, Kai Jiang, Deheng Shi, Jinfeng Sun
DOI: 10.1039/C1CP20729F
Nanoparticle-coated separators for lithium-ion batteries with advanced electrochemical performance
Jason Fang, Antonios Kelarakis, Yueh-Wei Lin, Chi-Yun Kang, Ming-Huan Yang, Cheng-Liang Cheng, Yue Wang, Emmanuel P. Giannelis, Li-Duan Tsai
DOI: 10.1039/C1CP22017A
Bias-controlled selective excitation of vibrational modes in molecular junctions: a route towards mode-selective chemistry
Roie Volkovich, Rainer Härtle, Michael Thoss, Uri Peskin
DOI: 10.1039/C1CP21161G
Hierarchical micro/nano structures of carbon composites as anodes for microbial fuel cells
Yong Zhao
DOI: 10.1039/C1CP21813A
A theoretical study of pure and mixed caesium clusters and cluster ions, CslHmO 0/+n, l ≤ 5: geometry, energetics and photofragmentation
Sebastian Krapf, Maria Schill, Sebastian Krötz, Thorsten Koslowski
DOI: 10.1039/C1CP21274E
Depolarization of water in protic ionic liquids
Stefan Zahn, Katharina Wendler, Luigi Delle Site, Barbara Kirchner
DOI: 10.1039/C1CP20288J
您可能还喜欢
3 - (二氟甲基)-1 -氟苯(CAS号:26029-52-7)适用哪些法规指南?
3 - (二氟甲基)-1 -氟苯需遵循联合国全球化学品统一分类和标签制度(GHS),包括急性毒性、皮肤腐蚀/刺激、严重眼损伤/眼刺激等分类。同时,该化合物还需符...
3,5-二甲基苯胺(CAS号:108-69-0)通常如何合成?
3,5-二甲基苯胺通常通过乙苯的氨解反应合成。反应中使用硫酸作为催化剂,反应温度为120-130°C。乙苯在硫酸存在下与氨反应,生成3,5-二甲基苯胺和苯胺副产...
3-甲基异噻唑-5-胺(CAS号:24340-76-9)安全吗?
3-甲基异噻唑-5-胺在适当使用和储存条件下是相对安全的,但在操作时应注意防护措施。应避免吸入粉尘,避免与皮肤和眼睛直接接触。在操作过程中,应穿戴适当的防护装备...
3-(1,3-Thiazol-2-yl)-1H-indole(CAS号:135531-86-1)通常如何合成?
3-(1,3-噻唑-2-基)-1H-吲哚通常通过多步合成方法制备。首先,由噻唑-2-基溴化物和吲哚进行偶联反应,得到中间体。然后,通过还原反应将中间体转化为所需...
4-溴-2-氟苯甲基氯(CAS号:85510-82-3)的主要用途是什么?
4-溴-2-氟苯甲基氯主要用于有机合成中间体,特别是在医药、农药和染料等领域。作为一种具有特定结构的化合物,它在合成复杂有机分子时扮演重要角色。
处理Fmoc-β-(3-噻吩基)-D-Ala-OH(CAS号:220497-90-5)时应注意哪些实验室安全事项?
处理Fmoc-β-(3-噻吩基)-D-Ala-OH时,应佩戴防护手套、护目镜和实验服。操作应在通风橱内进行。如发生泄露,应立即用大量水冲洗,并通知实验室管理人员...
氮化硅(CAS号:12033-89-5)通常如何合成?
氮化硅通常通过氮化硅的直接反应合成,即在高温下将四氯化硅与氨气反应。具体步骤是将四氯化硅和氨气混合并加热至1300-1700℃,在该条件下,四氯化硅与氨气反应生...
Cetirizine EP Impurity B DiHCl(CAS号:1000690-91-4)通常如何合成?
Cetirizine EP Impurity B DiHCl通常通过一锅法合成,首先将4-氯苯基-苯甲基氯甲酸酯与1-哌嗪乙酸反应,生成相应的酸,然后与盐酸反应...
如何储存1-哌啶-4-基丁-1-酮(CAS号:3509-15-7)?
1-哌啶-4-基丁-1-酮应储存在阴凉、干燥的地方,避免阳光直射。存储容器应密封,并确保通风良好。建议储存温度不超过25℃,湿度保持在相对较低的水平。
如何处理含有VORUCICLIB(CAS号:1000023-04-0)的废料?
含有VORUCICLIB的废料应进行专业的收集和处理,包括使用适当的容器进行隔离,避免与其他化学品接触。处理方法通常包括化学中和、沉淀反应或吸附过程,随后进行焚...
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














