Journal ArticleDOI
Rotational spectra and structures of the Ar2–H35Cl/37Cl trimers
Reads0
Chats0
TLDR
In this paper, rotational spectra of the Ar2-HCl trimer with the pulsed nozzle Fourier transform method using the Flygare Mark II spectrometer were analyzed for each of the transitions and the coupling constants and line centers determined.Abstract:
Microwave rotational spectra have been observed for both Cl isotopes of the Ar2–HCl trimer with the pulsed nozzle Fourier transform method using the Flygare Mark II spectrometer. The Cl nuclear quadrupole hyperfine structure was analyzed for each of the transitions and the coupling constants and line centers determined. Sixteen transitions were observed in the 2 to 15 GHz region for the 35Cl species and 11 for 37Cl. The line centers were fitted to obtain ground state rotational and quartic centrifugal distortion constants A‘, B‘, C‘, τ1, τ2, τaaaa, τbbbb, and τcccc. For Ar2–H35Cl, the values are 1733.857, 1667.932, 844.491, −0.1170, −0.0292, −0.1199, −0.0802, and −0.0079 MHz, respectively, and for Ar2–H37Cl: 1733.824, 1606.877, 828.497, −0.1121, −0.0279, −0.1205, −0.0737, and −0.0075 MHz. The equilibrium geometry is determined to be T shaped with C2v symmetry and the H end of the HCl closest to the Ar2. Large amplitude slightly anisotropic torsional motion of the HCl is evident from the hyperfine constant...read more
Citations
More filters
Journal ArticleDOI
Least-squares mass-dependence molecular structures for selected weakly bound intermolecular clusters
TL;DR: In this article, the applicability of the recently proposed method of Watson et al. to the determination of geometries of weakly bound clusters was tested, and the method delivered equilibrium-quality structural parameters from highly precise fits to only the ground state rotational constants.
Journal ArticleDOI
The vibrational spectroscopy and dynamics of weakly bound neutral complexes.
TL;DR: A growing number of binary and tertiary van der Waals and hydrogen-bonded complexes are being studied by means of near-infrared laser spectroscopy, generating a wealth of detailed structural and dynamical information that provides exacting tests of the corresponding theoretical methods.
Journal ArticleDOI
Molecular clusters: Structure and dynamics of weakly bound systems
Zlatko Bačić,Roger E. Miller +1 more
TL;DR: Weakly bound atomic and molecular clusters can be viewed as finite-size "pieces" of the condensed phases of matter as mentioned in this paper, and the finite size of these pieces can be observed from both the experimental and theoretical points of view.
Journal ArticleDOI
Near infrared spectroscopic observation of the linear and cyclic isomers of the hydrogen cyanide trimer
K. W. Jucks,R. E. Miller +1 more
TL;DR: In this article, a sub-Doppler resolution infrared spectra for both the linear and cyclic conformers of the hydrogen cyanide trimer was obtained, and the vibrational predissociation lifetime of the complex was found to be strongly mode specific.
Journal ArticleDOI
Nonadditive intermolecular forces from the spectroscopy of van der Waals trimers : calculations on Ar2-HCl
Adam Cooper,Jeremy M. Hutson +1 more
TL;DR: In this paper, a method for calculating vibrational energies, rotational constants and angular expectation values for van der Waals trimers was developed and applied to the Ar2-HCl complex.
References
More filters
Journal ArticleDOI
Fabry–Perot cavity pulsed Fourier transform microwave spectrometer with a pulsed nozzle particle source
T. J. Balle,W. H. Flygare +1 more
TL;DR: In this article, the design, construction, and operation of a new type of microwave spectrograph which allows the measurement of the resonant transitions of transient or otherwise short-lived species is described.
Journal ArticleDOI
Determination of Centrifugal Distortion Coefficients of Asymmetric‐Top Molecules
TL;DR: In this article, the rotational Hamiltonian of an asymmetric-top molecule in a given vibrational state, obtained by the usual vibrational perturbation treatment, is transformed by means of a unitary transformation to a reduced Hamiltonian which is suitable for fitting to observed energies.
Journal ArticleDOI
Dipole Moment and Hyperfine Parameters of H35Cl and D35Cl
TL;DR: The molecular-beam electric resonance spectra of H 35Cl and D 35Cl have been analyzed in this article, and the molecular constants obtained in the observed states are as follows (numbers in parentheses are the errors in the final significant figures): H35Clυ = 0, J.
Journal ArticleDOI
Gas-phase spectroscopy and the properties of hydrogen-bonded dimers. HCN.cntdot..cntdot..cntdot.HF as the spectroscopic prototype
Anthony C. Legon,D. J. Millen +1 more
Journal ArticleDOI
Determination of the structure of ArHCl
TL;DR: In this paper, the rotational and hyperfine structure constants for the lowest vibrational state of the four isotopic species of ArHCl and ArDCl were measured by molecular beam electric resonance spectroscopy.
Related Papers (5)
Nonadditive intermolecular forces from the spectroscopy of van der Waals trimers : calculations on Ar2-HCl
Adam Cooper,Jeremy M. Hutson +1 more
Fabry–Perot cavity pulsed Fourier transform microwave spectrometer with a pulsed nozzle particle source
T. J. Balle,W. H. Flygare +1 more