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A highly flexible molecule: The peculiar case of ethynyl isothiocyanate HCCNCS
(Journal of Chemical Physics, 2018-09-12)
The rotational spectrum of the parent isotopic species of HCCNCS, along with those of three 13C singly substituted variants and one 34S minor isotopologue, has been observed with high resolution using Fourier transform ...
Derivation of an accurate geometry of 2-fluoroaniline from rotational spectroscopy and computational chemistry
(Journal of Molecular Structure, 2020-08-18)
The ground state rotational spectrum of 2-fluoroaniline was investigated using Fourier transform microwave spectroscopy in the 6-19 GHz range. The spectrum reveals hyperfine structure due to the 14N quadrupole moment and ...
Characterization of Large-Amplitude Motions and Hydrogen Bonding Interactions in the Thiophene–Water Complex by Rotational Spectroscopy
(The Journal of Physical Chemistry A, 2021-04-21)
The rotational fingerprint of the thiophene–water complex was investigated for the first time using Fourier transform microwave spectroscopy (7–20 GHz) aided by quantum mechanical calculations. Transitions for a single ...
Isothiocyanato-Containing Carbon Chains: The Laboratory Detection of HCCCCNCS and NCCCNCS via Rotational Spectroscopy
(The Journal of Physical Chemistry A, 2018-08-30)
Two new NCS-containing carbon chains of potential astronomical interest, HC4NCS and NC3NCS, were produced through dc electric discharge in a molecular beam and detected by Fourier transform microwave spectroscopy. Rotational ...
Targeting the rich conformational landscape of N-allylmethylamine using rotational spectroscopy and quantum mechanical calculations
(ChemPhysChem, 2020-10-03)
The highly variable conformational landscape of N-allylmethylamine (AMA) was investigated using Fourier transform microwave spectroscopy aided by high-level theoretical calculations to understand the energy relationship ...
Sulfur as a hydrogen bond donor in the gas phase: Rotational spectroscopic and computational study of 3-mercaptopropionic acid
(Journal of Molecular Spectroscopy, 2019-05-29)
Rotational spectra of 3-mercaptopropionic acid (3-mpa) were measured from 6 to 18 GHz using chirped pulse and cavity-based Fourier transform microwave (FTMW) spectroscopy. Theoretical calculations using the B3LYP-D3BJ and ...
Hydrogen bonding networks and cooperativity in the aqueous solvation of trimethylene oxide and sulfide rings by microwave spectroscopy and computational chemistry
(Journal of Chemical Physics, 2021-07-16)
The intermolecular interactions responsible for the microsolvation of the highly flexible trimethylene oxide (TMO) and trimethylene sulfide (TMS) rings with one and two water (w) molecules were investigated using rotational ...
Analysis of the Complex Quadrupole Hyperfine Patterns for Two Chlorine Nuclei in the Rotational Spectrum of 2,5-Dichlorothiophene
(The Journal of Physical Chemistry A, 2021-07-13)
The rotational spectrum of 2,5-dichlorothiophene (DCT) was measured for the first time using Fourier transform microwave spectroscopy from 5.5-19 GHz. Dense hyperfine splitting patterns due to the two quadrupolar chlorine ...
Rotational spectra and conformer geometries of 2-fluorophenol and 3-fluorophenol
(Journal of Molecular Spectroscopy, 2016-11-16)
The ground states of 2-fluorophenol (2FPh) and 3-fluorophenol (3FPh) and their 13C isotopologues were investigated using Fourier transform microwave (FTMW) spectroscopy in the range of 6–26GHz. Two planar conformers were ...
Synchrotron-based far infrared study of the rotation-vibration-inversion spectrum of silacyclobutane below 500 cm-1: The ν29 and ν30 bands
(Journal of Chemical Physics, 2013-12-26)
Fourier transform spectra of the four-membered heterocycle silacyclobutane (c-C3H8Si) were recorded in the far infrared region from 100-500 cm-1 with a maximum resolution of 0.000959 cm-1 using synchrotron radiation from ...