Infrared Spectroscopy of Neutral and Cationic Sumanene (C21H12 & C21H12 +) in the Gas Phase: Implications for Interstellar Aromatic Infrared Bands (AIBs) [0.03%]
中性和带正电的苏满烯（C21H12和C21H12+）的红外光谱：对星际芳香红外线波段的意义
Pavithraa Sundararajan,Piero Ferrari,Sandra Brünken et al.
Pavithraa Sundararajan et al.
Polycyclic aromatic hydrocarbons (PAHs) are known to be omnipresent in various astronomical sources. Ever since the discovery of C60 and C70 fullerenes in a young planetary nebula in 2010, uncovering the reaction pathways between PAHs and f...
Hot Sulfur on the Rocks: The Reaction of Electronically Excited Sulfur Atoms with Water in an Ice-Surface Model [0.03%]
热点上的硫：电子激发的硫原子与冰表面模型中水反应
Gabriella Di Genova,Jessica Perrero,Marzio Rosi et al.
Gabriella Di Genova et al.
In this contribution, we present a theoretical investigation of the reaction involving atomic sulfur in its first electronically excited state, 1D, and H2O on an ice-surface model. This study is motivated by the work of Giustini et al. (ACS...
Alexandre Zanchet,Jia Lei Chen-Qiu,Pascal Larregaray et al.
Alexandre Zanchet et al.
Endothermic reactions such as S +(4 S) + H 2 are not expected to play a significant role in the chemistry of the interstellar medium (ISM). However, in some specific environments, such as photon-dominated regions (PDR), UV radiation may cat...
Geochemical Transformations of Gypsum Under Multiple Environmental Settings and Implications for Ca-Sulfate Detection on Mars [0.03%]
多环境条件下石膏的地球化学转化及对火星上硫酸钙检测的意义
Merve Yeşilbaş,Tuan H Vu,Robert Hodyss et al.
Merve Yeşilbaş et al.
Calcium sulfate minerals are found in multiple environments on Earth and Mars, with chloride (Cl) salts widely distributed on both planets. Low-temperature studies have explored geochemical processes, including the formation of transient li...
Evaluating Infrared Absorption Parameters for Low-Temperature Ices Using Reflection-Absorption Infrared Spectroscopy [0.03%]
使用反射吸收红外光谱评估低温冰的红外吸收参数
Jack E Fulker,Martin McCoustra,Wendy A Brown
Jack E Fulker
We present infrared absorption coefficients, cross sections, and band strengths calculated from reflection-absorption infrared spectroscopy (RAIRS) data of molecular ices deposited on a highly oriented pyrolytic graphite (HOPG) surface at 2...
Photochemical Degradation of Iron Citrate in Anoxic Viscous Films Enhanced by Redox Cascades [0.03%]
氧化还原级联增强厌氧粘性膜中铁柠檬酸的光化学降解
Ashmi Mishra,Kevin Kilchhofer,Lucia Iezzi et al.
Ashmi Mishra et al.
Iron contained in atmospheric aerosol particles can form complexes with organic ligands and initiate photochemical reactions that alter the composition and physicochemical properties of the particles. Depending on the temperature and humidi...
Exploring Forsterite Surface Catalysis in HCN Polymerization: Computational Insights for Astrobiology and Prebiotic Chemistry [0.03%]
探索方石表面催化在HCN聚合中的作用：为天体生物学和前生物化学提供的计算洞察力
Niccolò Bancone,Stefano Pantaleone,Piero Ugliengo et al.
Niccolò Bancone et al.
Understanding the catalytic role of cosmic mineral surfaces is crucial for elucidating the chemical evolution needed for the emergence of life on Earth and other planetary systems. In this study, the catalytic role of silicate forsterite (M...
Formation and Stability of the Propionitrile:Acetylene Co-Crystal Under Titan-Relevant Conditions [0.03%]
在泰坦相关条件下丙腈：乙炔共晶的形成与稳定性
Ellen C Czaplinski,Tuan H Vu,Helen Maynard-Casely et al.
Ellen C Czaplinski et al.
Propionitrile (also known as ethyl cyanide, CH3CH2CN) and acetylene (C2H2) are two organic molecules that have been detected in Titan's atmosphere. Over time, they may interact with each other as they are transported to Titan's surface. We ...
Multigeneration Chemistry in Secondary Organic Aerosol Formation from Nitrate Radical Oxidation of Isoprene [0.03%]
异戊二烯经硝酸根自由基氧化生成二次有机气溶胶的多代化学反应
Tianchang Xu,Masayuki Takeuchi,Jean C Rivera-Rios et al.
Tianchang Xu et al.
The nitrate radical (NO3) oxidation of isoprene is an important contributor to secondary organic aerosol (SOA). Isoprene has two double bonds which allow for multigeneration oxidation to occur. The effects of multigeneration chemistry on th...
Infrared Cooling in an Anharmonic Cascade Framework: 2-Cyanoindene, the Smallest Cyano-PAH Identified in Taurus Molecular Cloud-1 [0.03%]
非谐级联框架中的红外冷却:2-氰基茚，太空中分子云-1中鉴定出的最小的氰基-PAH
Mark H Stockett,Vincent J Esposito,Eleanor K Ashworth et al.
Mark H Stockett et al.
Infrared (IR) cooling of polycyclic aromatic hydrocarbon (PAH) molecules is a major radiative stabilization mechanism of PAHs present in space and is the origin of the aromatic infrared bands (AIBs). Here, we report an anharmonic cascade mo...