Photolysis of phosphine in the presence of acetylene and propyne, gas mixtures of planetary interest

Prebiotic, planetary and interstellar chemistry starting from compounds detected in the interstellar medium

“…This reaction pathway is consistent with the nature of the products observed starting from ammonia and an alkene. Starting from a dissymmetric alkene, the proposed reaction pathway is consistent with the nature of the more abundant product, the hydrogen radical mainly adding on the less substituted carbon (Guillemin et al, 1995(Guillemin et al, , 1997(Guillemin et al, , 1998. On the contrary, starting from NH 3 and an alkyne, the formation of vinylamine has never been unambiguously evidenced (Ferris et al, 1992) (Scheme 12).…”

Vibrational Spectra, DFT Calculations, and Assignments of the syn and the gauche Forms of Vinylphosphine

“…On the other hand, this compound could be one of the constituents of the Jupiter and Saturn atmospheres, where vinylphosphine can be formed by the photolysis of PH 3 in the presence of C 2 H 2 (2).…”

Synthesis, chemistry and photochemistry of cyanobutadiyne (HCCCCCN)

“…Only the formation of dusts attributed to oligomeric compounds were observed on the wall of the cell. These results are quite unexpected because cyanoacetylene 1 as well as simple alkynes easily form adducts in similar conditions (Ferris and Guillemin, 1990;Guillemin et al, 1995Guillemin et al, , 1998. As an example, only traces of numerous compounds were observed in the photolysis of cyanobutadiyne 3 with dihydrogen sulfide in excess at 254 nm.…”