20 citations · 164 across the 28 of their papers we have counts for
28 papers
Low temperature jet spectra of (DFE)2, DFE-He, DFE-He2 and DFE in the 2210-3105 cm-1 region (DFE = 1,1 difluoroethylene)
A. J. Barclay, A. R. W. McKellar, A. Pietropolli Charmet +1
A pulsed supersonic slit jet expansion of a dilute mixture of 1,1 difluoroethylene (DFE) in helium is probed using a tunable infrared source to obtain spectra of (DFE)2, DFE-He, an…
Spectra of the D2O dimer in the O-D fundamental stretch region: the acceptor symmetric stretch fundamental and new combination bands
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
The O-D stretch fundamental region of the deuterated water dimer, (D2O)2, is further studied using a pulsed supersonic slit jet and a tunable optical parametric oscillator infrared…
Infrared spectra of the water-CO2 complex in the 4.3-3.6 micron region and determination of the ground state tunneling splitting for HDO-CO2
T. Gartner, C. Lauzin, A. R. W. McKellar +1
Spectra of water-CO2 dimers are studied using a tunable mid-infrared source to probe a pulsed slit jet supersonic expansion. H2O-CO2 and D2O-CO2 are observed in the CO2 nu3 fundame…
Doped rare gas clusters up to completion of first solvation shell, CO2-(Rg)n, n = 3-17, Rg = Ar, Kr, Xe
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
Spectra of rare gas atom clusters containing a single carbon dioxide molecule are observed using a tunable mid-infrared (4.3 micron) source to probe a pulsed slit jet supersonic ex…
Spectra of CO2-Rg2 and CO2-Rg-He trimers (Rg = Ne, Ar, Kr, and Xe): intermolecular CO2 rock, vibrational shifts and three-body effects
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
Weakly-bound CO2-Rg2 trimers are studied by high resolution (0.002 cm-1) infrared spectroscopy in the region of the CO2 nu3 fundamental band (~2350 cm-1), using a tunable OPO to pr…
Infrared spectra of (CO)-Rg trimers, Rg = Ne, Ar, Kr, and Xe
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
High resolution spectra of (CO)-Rg trimers (Rg = Ne, Ar, Kr, and Xe) in the region of the CO2 nu3 fundamental (~2350 cm) are reported, using a tunable OPO laser sour…
Observing the completion of the first solvation shell of carbon dioxide in argon from rotationally resolved spectra
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
Widespread interest in weakly bound molecular clusters of medium size (5-50 molecules) is motivated by their complicated energy landscapes, which lead to hundreds or thousands of d…
Weakly-bound clusters of atmospheric molecules: infrared spectra and structural calculations of (CO)-(CO)-(N), = (2, 1, 0), (2, 0, 1), (1, 2, 0), (1, 0, 2), (1, 1, 1), (1, 3, 0), (1, 0, 3), (1, 2, 1), (1, 1, 2)
A. J. Barclay, A. R. W. McKellar, A. Pietropolli Charmet +1
Structural calculations and high-resolution infrared spectra are reported for trimers and tetramers containing CO together with CO and/or N. Among the 9 clusters studied he…
New infrared spectra of CO2-Ne: fundamental for CO2-22Ne isotopologue, intermolecular bend, and symmetry breaking of the intramolecular CO2 bend
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
The infrared spectrum of the weakly-bound CO2-Ne complex is studied in the region of the carbon dioxide nu3 fundamental vibration (~2350 cm-1), using a tunable OPO laser source to…
Infrared spectra of both isomers of CO-CO in the CO region
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
Extensive infrared spectra of the weakly-bound CO-CO dimer are observed in the carbon dioxide asymmetric stretch region (~2350 cm-1) using a tunable infrared OPO laser so…
New infrared spectra of CO2-Xe: modeling Xe isotope effects, intermolecular bend and stretch, and symmetry breaking of the CO2 bend
A. J. Barclay, A. R. W. McKellar, Colin M. Western +1
The infrared spectrum of the weakly-bound CO2-Xe complex is studied in the region of the carbon dioxide nu3 fundamental vibration (~2350 cm-1), using a tunable OPO laser source to…
Exploring the next step in micro-solvation of CO in water: Infrared spectra and structural calculations of (H2O)4- CO and (D2O)4- CO
A. J. Barclay, A. Pietropolli Charmet, A. R. W. McKellar +1
We extend studies of micro-solvation of carbon monoxide by a combination of high-resolution IR spectroscopy and ab initio calculations. Spectra of the (H2O)4-CO and (D2O)4-CO penta…
Symmetry breaking of the bending mode of CO2 in the presence of Ar
T. A. Gartner, A. J. Barclay, A. R. W. McKellar +1
The weak infrared spectrum of CO2-Ar corresponding to the (0111) <-- (0110) hot band of CO2 is detected in the region of the carbon dioxide nu3 fundamental vibration (~2340 cm-1),…
Spectra of CO2-N2 dimer in the 4.2 micron region: symmetry breaking of the intramolecular CO2 bend, the intermolecular bend and higher K-values for the fundamental
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
Infrared spectra of the CO2-N2 dimer are observed in the carbon dioxide nu3 asymmetric stretch region (~2350 cm-1) using a tunable infrared optical parametric oscillator to probe a…
The ethylene-carbon dioxide complex and the double rotor model
A. R. W. McKellar, N. Moazzen-Ahmadi
The infrared spectrum of the weakly-bound C2H4-CO2 complex is investigated in the region of the nu3 fundamental band of CO2 (~2350 cm-1), using a tunable OPO laser source to probe…
Micro-solvation of CO in water: Infrared spectra and structural calculations for (DO)-CO and (DO)-CO
Aaron J. Barclay, Andrea Pietropolli Charmet, Kirk H. Michaelian +2
The weakly-bound molecular clusters (D2O)2-CO and (D2O)3-CO are observed in the C-O stretch fundamental region (~2150 cm-1), and their rotationally-resolved infrared spectra yield…
The most stable isomer of HC-(OCS) van der Waals complex: Theory and experiment agree on a structure with C2 symmetry
A. J. Barclay, A. Pietropolli Charmet, N. Moazzen-Ahmadi
We report the infrared spectrum of HC-(OCS) trimer in the region of the nu1 fundamental vibration of the OCS monomer. The van der Waals complexes are generated in a sup…
The water-carbon monoxide dimer: new infrared spectra, ab initio rovibrational energy level calculations, and an interesting intermolecular mode
A. Barclay, A. van der Avoird, A. R. W. McKellar +1
Rovibrational energy level calculations using a high-level intermolecular potential surface are reported for H2O-CO and D2O-CO. They predict the ground K = 1 levels to lie about 20…
Spectra of the D2O dimer in the O-D fundamental stretch region: vibrational dependence of tunneling splittings and lifetimes
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi
The fundamental O-D stretch region (2600 - 2800 cm-1) of the fully deuterated water dimer, (D2O)2, is studied using a pulsed supersonic slit jet source and a tunable optical parame…
Infrared bands of CS2 dimer and trimer at 4.5 cm-1
A. J. Barclay, K. Esteki, K. H. Michaelian +2
We report observation of new infrared bands of (CS2)2 and (CS2)3 in the region of the CS2 ν1+ ν3 combination band (at 4.5 cm-1) using a quantum cascade laser. The complexes are for…
The N2O-CS2 dimer is cross-shaped
N. Moazzen-Ahmadi, A. R. W. McKellar
The infrared spectrum of the cross-shaped van der Waals complex N2O-CS2 is observed in the region of the N2O nu1 fundamental band (~2220 cm-1) using a tuneable diode laser to probe…
Infrared spectra of Rg1,2 - C6H6 complexes, Rg = He, Ne, Ar
K. Esteki, A. J. Barclay, A. R. W. McKellar +1
Infrared spectra of Rg1,2 - C6H6 complexes (Rg = He, Ne, Ar) are observed in the region of the nu12 fundamental of C6H6 using a pulsed supersonic jet expansion and a tunable optica…
Characterization of OCS-HCCCCH and N2O-HCCCCH dimers: Theory and experiment
A. J. Barclay, A. Pietropolli Charmet, K. H. Michaelian +1
The infrared spectra of the weakly-bound dimers OCS-HCCCCH, in the region of the nu1 fundamental band of OCS (2050 cm-1), and N2O-HCCCCH, in the region of the nu1 fundamental band…
Infrared spectrum and intermolecular potential energy surface of the CO-O2 dimer
A. J. Barclay, A. R. W. McKellar, N. Moazzen-Ahmadi +3
Only a few weakly-bound complexes containing the O2 molecule have been characterized by high resolution spectroscopy, no doubt due to the complications added by the oxygen molecule…