Radiation-induced transformations of isolated phosphine molecules at cryogenic temperatures: Spectroscopic and chemical aspects

Article Chemistry, Physical

Radiation-induced transformations of acetaldehyde molecules at cryogenic temperatures: a matrix isolation study

Pavel Zasimov et al.

Summary: This paper presents the first systematic study on the chemical transformations of acetaldehyde molecules under X-ray irradiation conditions in different solid noble gases, identifying CO, CH4, ketene, and various other radiolysis products. The dominant pathway of acetaldehyde degradation involves C-C bond cleavage, while matrix effects significantly influence the decomposition efficiency and reaction channel distribution. The study also discusses the probable mechanisms of acetaldehyde radiolysis and their implications for astrochemistry, atmospheric chemistry, and low-temperature chemistry.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

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Article Multidisciplinary Sciences

Identification of a prismatic P3N3 molecule formed from electron irradiated phosphine-nitrogen ices

Cheng Zhu et al.

Summary: This study reports the preparation of prismatic P3N3 by exposing phosphine and nitrogen ice mixtures to energetic electrons. The existence of prismatic P3N3 was confirmed through mass spectrometry analysis, revealing some structural and chemical bond characteristics of the molecule.

NATURE COMMUNICATIONS (2021)

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Review Chemistry, Multidisciplinary

Matrix isolation in laboratory astrochemistry: state-of-the-art, implications and perspective

Vladimir Feldman et al.

Summary: Recent progress in observational astronomy and astrophysics has led to intensive laboratory studies focusing on the evolution mechanisms of molecular matter in interstellar space and various space objects. Cold astrochemistry, a rapidly developing field, explores complex processes in astrophysical ices using the matrix isolation technique. This technique is crucial for interpreting astrophysical observations and verifying key astrochemical processes, contributing to spectroscopy of important molecules in cryogenic matrices and experimental modeling of chemical reactions in cold space environments.

RUSSIAN CHEMICAL REVIEWS (2021)

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Article Chemistry, Multidisciplinary

Formation of phosphine imide (HN=PH3) and its phosphinous amide (H2N-PH2) isomer

Cheng Zhu et al.

Summary: The first formation of phosphine imide and its isomer phosphinous amide was achieved by exposing phosphine and ammonia ices to ionizing radiation. This method can be used to prepare, separate, and detect highly reactive compounds like intermediates of Wittig reactions.

CHEMICAL COMMUNICATIONS (2021)

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Article Astronomy & Astrophysics