LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 7 of total 7

Search options

  1. Article ; Online: Vacuum UV photodesorption of organics in the interstellar medium: an experimental study of formic acid HCOOH and methyl formate HCOOCH

    Bertin, Mathieu / Basalgète, Romain / Ocaña, Antonio J / Féraud, Géraldine / Romanzin, Claire / Philippe, Laurent / Michaut, Xavier / Fillion, Jean-Hugues

    Faraday discussions

    2023  Volume 245, Page(s) 488–507

    Abstract: Being a potential process that could explain gas phase abundances of so-called complex organic molecules (COMs) in the cold interstellar medium (ISM), the UV photon-induced desorption from organics-containing molecular ices has been experimentally ... ...

    Abstract Being a potential process that could explain gas phase abundances of so-called complex organic molecules (COMs) in the cold interstellar medium (ISM), the UV photon-induced desorption from organics-containing molecular ices has been experimentally studied. In this work, we focused on the observation of the photodesorbed products and the measurement of the associated photodesorption yields from pure and mixed molecular ices, each containing organic molecules whose detection has been achieved in the gas phase of the cold ISM, namely formic acid HCOOH and methyl formate HCOOCH
    Language English
    Publishing date 2023-09-20
    Publishing country England
    Document type Journal Article
    ISSN 1364-5498
    ISSN (online) 1364-5498
    DOI 10.1039/d3fd00004d
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Cryogenic Chemistry and Quantitative Non-Thermal Desorption from Pure Methanol Ices: High-Energy Electron versus X-Ray Induced Processes.

    Torres-Díaz, Daniela / Basalgète, Romain / Bertin, Mathieu / Fillion, Jean-Hugues / Michaut, Xavier / Amiaud, Lionel / Lafosse, Anne

    Chemphyschem : a European journal of chemical physics and physical chemistry

    2023  Volume 24, Issue 9, Page(s) e202200912

    Abstract: X-Ray irradiation of interstellar ice analogues has recently been proven to induce desorption of molecules, thus being a potential source for the still-unexplained presence of gaseous organics in the coldest regions of the interstellar medium, especially ...

    Abstract X-Ray irradiation of interstellar ice analogues has recently been proven to induce desorption of molecules, thus being a potential source for the still-unexplained presence of gaseous organics in the coldest regions of the interstellar medium, especially in protoplanetary disks. The proposed desorption mechanism involves the Auger decay of excited molecules following soft X-ray absorption, known as X-ray induced electron-stimulated desorption (XESD). Aiming to quantify electron induced desorption in XESD, we irradiated pure methanol (CH
    Language English
    Publishing date 2023-02-17
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2025223-7
    ISSN 1439-7641 ; 1439-4235
    ISSN (online) 1439-7641
    ISSN 1439-4235
    DOI 10.1002/cphc.202200912
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: Ro-translational dynamics of confined water. I. The confined asymmetric rotor model.

    Wespiser, Clément / Putaud, Thomas / Kalugina, Yulia / Soldera, Armand / Roy, Pierre-Nicholas / Michaut, Xavier / Ayotte, Patrick

    The Journal of chemical physics

    2022  Volume 156, Issue 7, Page(s) 74304

    Abstract: Confinement effects on the ro-translational (RT) dynamics of water, trapped in rare gas matrices or within endofullerenes (i.e., ... ...

    Abstract Confinement effects on the ro-translational (RT) dynamics of water, trapped in rare gas matrices or within endofullerenes (i.e., H
    Language English
    Publishing date 2022-02-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3113-6
    ISSN 1089-7690 ; 0021-9606
    ISSN (online) 1089-7690
    ISSN 0021-9606
    DOI 10.1063/5.0079565
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 49/16: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Confinement Effects on the Nuclear Spin Isomer Conversion of H

    Turgeon, Pierre-Alexandre / Vermette, Jonathan / Alexandrowicz, Gil / Peperstraete, Yoann / Philippe, Laurent / Bertin, Mathieu / Fillion, Jean-Hugues / Michaut, Xavier / Ayotte, Patrick

    The journal of physical chemistry. A

    2017  Volume 121, Issue 8, Page(s) 1571–1576

    Abstract: The mechanism for interconversion between the nuclear spin isomers (NSI) of ... ...

    Abstract The mechanism for interconversion between the nuclear spin isomers (NSI) of H
    Language English
    Publishing date 2017-03-02
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.7b00893
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Spectroscopic Measurements of Methane Solid-Gas Equilibrium Clapeyron Curve between 40 and 77 K.

    Cacciani, Patrice / Čermák, Peter / Pardanaud, Cédric / Valentová, Gabriela / Cosléou, Jean / Martin, Céline / Coussan, Stéphane / Noble, Jennifer A / Addab, Younes / Boursier, Corinne / Jeseck, Pascal / Bertin, Mathieu / Fillion, Jean-Hugues / Michaut, Xavier

    The journal of physical chemistry. A

    2019  Volume 123, Issue 16, Page(s) 3518–3534

    Abstract: The infrared gas-phase absorption spectrum of methane was used to determine its Clapeyron solid-gas equilibrium curve in the 40-77 K temperature range. For comparative purposes and to obtain more reliable results, two different optical experimental ... ...

    Abstract The infrared gas-phase absorption spectrum of methane was used to determine its Clapeyron solid-gas equilibrium curve in the 40-77 K temperature range. For comparative purposes and to obtain more reliable results, two different optical experimental setups were used. At higher temperatures (53-77 K), a single pass cryogenically cooled cell was coupled to a standard low-resolution Fourier transform infrared spectrometer. The second system was a state-of-the-art vertical-external-cavity surface-emitting laser tunable source operating at around 2.3 μm, combined with a 7 m path Herriott cell, to record methane absorption features down to 40 K. From the measurements, the vapor pressure curve ln( p/Pa) = -(1191.92 ± 8.92)/( T/K) + (22.49 ± 0.16) was derived in the range 40-77 K. This corresponds to a value of 9910 ± 75 J mol
    Language English
    Publishing date 2019-04-10
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.9b01278
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article ; Online: Nuclear Spin Symmetry Conservation in

    Georges, Robert / Michaut, Xavier / Moudens, Audrey / Goubet, Manuel / Pirali, Olivier / Soulard, Pascale / Asselin, Pierre / Huet, Thérèse / Roy, Pascale / Fournier, Martin / Vigasin, Andrey

    The journal of physical chemistry. A

    2017  Volume 121, Issue 40, Page(s) 7455–7468

    Abstract: We report the results of an experimental study related to the relaxation of the nuclear spin isomers of the water molecule in a supersonic expansion. Rovibrational lines of both ortho and para spin isomers were recorded in the spectral range of ... ...

    Abstract We report the results of an experimental study related to the relaxation of the nuclear spin isomers of the water molecule in a supersonic expansion. Rovibrational lines of both ortho and para spin isomers were recorded in the spectral range of H
    Language English
    Publishing date 2017-10-12
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.7b06858
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: UV photodesorption of interstellar CO ice analogues: from subsurface excitation to surface desorption.

    Bertin, Mathieu / Fayolle, Edith C / Romanzin, Claire / Öberg, Karin I / Michaut, Xavier / Moudens, Audrey / Philippe, Laurent / Jeseck, Pascal / Linnartz, Harold / Fillion, Jean-Hugues

    Physical chemistry chemical physics : PCCP

    2012  Volume 14, Issue 28, Page(s) 9929–9935

    Abstract: Carbon monoxide is after H(2) the most abundant molecule identified in the interstellar medium (ISM), and is used as a major tracer for the gas phase physical conditions. Accreted at the surface of water-rich icy grains, CO is considered to be the ... ...

    Abstract Carbon monoxide is after H(2) the most abundant molecule identified in the interstellar medium (ISM), and is used as a major tracer for the gas phase physical conditions. Accreted at the surface of water-rich icy grains, CO is considered to be the starting point of a complex organic--presumably prebiotic--chemistry. Non-thermal desorption processes, and especially photodesorption by UV photons, are seen as the main cause that drives the gas-to-ice CO balance in the colder parts of the ISM. The process is known to be efficient and wavelength-dependent, but, the underlying mechanism and the physical-chemical parameters governing the photodesorption are still largely unknown. Using monochromatized photons from a synchrotron beamline, we reveal that the molecular mechanism responsible for CO photoejection is an indirect, (sub)surface-located process. The local environment of the molecules plays a key role in the photodesorption efficiency, and is quenched by at least an order of magnitude for CO interacting with a water ice surface.
    Language English
    Publishing date 2012-07-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/c2cp41177f
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top