Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Silvia, Alessandrini"'
Publikováno v:
ACS Central Science, Vol 10, Iss 1, Pp 13-15 (2024)
Externí odkaz:
https://doaj.org/article/20fb8f751a31434a8767929d0a12aeb0
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
The chemistry of the interstellar medium occurs under extreme conditions and can lead to the formation of exotic molecules. These are species that on Earth are unstable and/or highly reactive. Their discovery in space is usually based on the astronom
Externí odkaz:
https://doaj.org/article/fcf5a3419bd949aa8c0500c9dbbf8258
Autor:
Luca Bizzocchi, Francesca Tonolo, Barbara M. Giuliano, Paola Caselli, Mattia Melosso, Luca Dore, Silvia Alessandrini, Cristina Puzzarini, Andrea Pietropolli Charmet
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 26 (2024)
Heavy oxygen isotopic species of HCO ^+ are important optically thin astrophysical tracers. The ground-state rotational spectrum of HC ^18 O ^+ , DC ^18 O ^+ , HC ^17 O ^+ , and DC ^17 O ^+ has been recorded in the laboratory in the frequency range f
Externí odkaz:
https://doaj.org/article/eaffe713292945e09f7853acfc0ad82c
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 32 (2024)
The gas-phase reactions of methanimine (CH _2 NH) with small radicals, such as CN, CP, CCH, and OH, have been extensively studied theoretically in the literature, and the presence of a common, general reaction mechanism has been postulated. Since met
Externí odkaz:
https://doaj.org/article/294c8012875d46f582dc0b727725f68e
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
Radioastronomy is a powerful tool for the discovery of molecules in space but it requires molecular species to be polar. The observation of apolar species can be however enabled by protonation, which occurs from reaction with the abundant H3+ ion whe
Externí odkaz:
https://doaj.org/article/6e49b78d38cd42d9865291b4b5af0243
Publikováno v:
Molecules, Vol 28, Iss 7, p 3226 (2023)
The C3H3NO family of isomers is relevant in astrochemistry, even though its members are still elusive in the interstellar medium. To identify the best candidate for astronomical detection within this family, we developed a new computational protocol
Externí odkaz:
https://doaj.org/article/649d99efc86246df9183d19bd545985b
Autor:
Silvia Alessandrini, Mattia Melosso
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
The escalating identification of new complex molecules in the interstellar medium claims for potential formation routes of such species. In this regard, the present work considers the reaction between oxirane and the CN radical as a feasible formatio
Externí odkaz:
https://doaj.org/article/90def68f713248b38be0db1910e4db92
Publikováno v:
Molecules, Vol 27, Iss 1, p 302 (2022)
Phosphorous-containing molecules have a great relevance in prebiotic chemistry in view of the fact that phosphorous is a fundamental constituent of biomolecules, such as RNA, DNA, and ATP. Its biogenic importance has led astrochemists to investigate
Externí odkaz:
https://doaj.org/article/64aabcde3c7149249ebc345d95e9d412
Autor:
Alessio Melli, Mattia Melosso, Luca Bizzocchi, Silvia Alessandrini, Ningjing Jiang, Francesca Tonolo, Salvatore Boi, Giorgia Castellan, Carlotta Sapienza, Jean-Claude Guillemin, Luca Dore, Cristina Puzzarini
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, 2022, 126 (36), pp.6210-6220. ⟨10.1021/acs.jpca.2c05018⟩
Journal of Physical Chemistry A, 2022, 126 (36), pp.6210-6220. ⟨10.1021/acs.jpca.2c05018⟩
International audience; Several interstellar molecules are highly reactive unsaturated carbon chains, which are unstable under terrestrial conditions. Laboratory studies in support of their detection in space thus face the issue of how to produce the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::098b7f53c52e5bffa8a73b01a75c61f5
https://doi.org/10.1021/acs.jpca.2c05018
https://doi.org/10.1021/acs.jpca.2c05018
Autor:
Juncheng Lei, Silvia Alessandrini, Junhua Chen, Yang Zheng, Lorenzo Spada, Qian Gou, Cristina Puzzarini, Vincenzo Barone
Publikováno v:
Molecules, Vol 25, Iss 21, p 4899 (2020)
The most stable isomer of the 1:1 complex formed by 2,2,2-trifluoroacetophenone and water has been characterized by combining rotational spectroscopy in supersonic expansion and state-of-the-art quantum-chemical computations. In the observed isomer,
Externí odkaz:
https://doaj.org/article/82a69b98d6bb452897d996b2f7c3c06d