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Walther Caminati - One of the best experts on this subject based on the ideXlab platform.

  • Oligomers based on weak hydrogen bond networks: a rotational study of the tetramer of Difluoromethane
    Chemical communications (Cambridge England), 2014
    Co-Authors: Gang Feng, Luca Evangelisti, Ivo Cacelli, Laura Carbonaro, Giacomo Prampolini, Walther Caminati
    Abstract:

    We report the rotational spectrum of one conformer of the tetramer of Difluoromethane (CH2F2)4 (the first pure rotational spectrum of a tetramer of an asymmetric rotor), and describe the network of weak hydrogen bonds which connect the four subunits.

  • non bonding interactions and internal dynamics in ch2f2 h2co a rotational and model calculations study
    Physical Chemistry Chemical Physics, 2013
    Co-Authors: Gang Feng, Luca Evangelisti, Montserrat Vallejolopez, Alberto Lesarri, Emilio J Cocinero, Walther Caminati
    Abstract:

    The rotational spectra of three isotopologues of the 1 : 1 complex between Difluoromethane and formaldehyde have been observed and assigned using pulsed jet Fourier transform microwave spectroscopy. The formaldehyde lies in the FCF plane of Difluoromethane, linked through a C–H⋯F and a bifurcated CH2⋯O weak hydrogen bonds. The rotational transitions are split into two component lines with a relative intensity ratio of 1 : 3, due to the internal rotation of the formaldehyde moiety along its symmetry axis. The barrier to this motion has been estimated by using a flexible model to be V2 = 180(10) cm−1.

  • Fourier transform microwave spectrum of Difluoromethane-Xe
    Journal of Molecular Spectroscopy, 2009
    Co-Authors: Shouyuan Tang, Luca Evangelisti, Walther Caminati
    Abstract:

    Abstract The microwave spectra of three isotopomers of the complex of Difluoromethane–xenon ( 132 Xe, 131 Xe, 129 Xe) have been studied by supersonic jet Fourier transform microwave spectroscopy. A general improvement of the fittings has been obtained with respect to a previous millimeter wave free jet investigation (Caminati, 2006) [12]. In particular, the nuclear quadrupole coupling constants of the 131 Xe nucleus in Difluoromethane– 131 Xe have been precisely determined, χ aa = 0.941(4), χ bb = 0.642(4) and χ cc = −1.583(4) MHz, respectively.

  • Fourier transform microwave spectrum of Difluoromethane–Xe
    Journal of Molecular Spectroscopy, 2009
    Co-Authors: Shouyuan Tang, Luca Evangelisti, Walther Caminati
    Abstract:

    The microwave spectra of three isotopomers of the complex of Difluoromethane–xenon (132Xe, 131Xe, 129Xe) have been studied by supersonic jet Fourier transform microwave spectroscopy. A general improvement of the fittings has been obtained with respect to a previous millimeter wave free jet investigation [W. Caminati, J. Phys. Chem. A. 110 (2006) 4359]. In particular, the nuclear quadrupole coupling constants of the 131Xe nucleus in Difluoromethane–131Xe have been precisely determined, χaa = 0.941(4), χbb = 0.642(4) and χcc = -1.583(4) MHz, respectively

  • Free-jet rotational spectrum and tunneling motion of Difluoromethane···xenon
    The journal of physical chemistry. A, 2006
    Co-Authors: Walther Caminati
    Abstract:

    The rotational spectra of three isotopologues of Difluoromethane···xenon have been investigated by free-jet millimeter-wave absorption spectroscopy. Only μc-type transitions have been observed, all...

Kyaw Thu - One of the best experts on this subject based on the ideXlab platform.

Sebastiano Tomassetti - One of the best experts on this subject based on the ideXlab platform.

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Jiyoung Park - One of the best experts on this subject based on the ideXlab platform.