1
|
Anderson DT, Fajardo ME, Lindsay CM. High resolution infrared spectroscopy of (HCl) 2 and (DCl) 2 isolated in solid parahydrogen: Interchange-tunneling in a quantum solid. J Chem Phys 2021; 154:164309. [PMID: 33940830 DOI: 10.1063/5.0049599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Infrared spectroscopic studies of weakly bound clusters isolated in solid parahydrogen (pH2) that exhibit large-amplitude tunneling motions are needed to probe how quantum solvation perturbs these types of coherent dynamics. We report high resolution Fourier transform infrared absorption spectra of (HCl)2, HCl-DCl, and (DCl)2 isolated in solid pH2 in the 2.4-4.8 K temperature range. The (HCl)2 spectra show a remarkable amount of fine structures that can be rigorously assigned to vibration-rotation-tunneling transitions of (HCl)2 trapped in double substitution sites in the pH2 matrix where end-over-end rotation of the cluster is quenched. The spectra are assigned using a combination of isotopically (H/D and 35Cl/37Cl) enriched samples, polarized IR absorption measurements, and four-line combination differences. The interchange-tunneling (IT) splitting in the ground vibrational state for in-plane and out-of-plane H35Cl-H37Cl dimers is 6.026(1) and 6.950(1) cm-1, respectively, which are factors of 2.565 and 2.224 smaller than in the gas phase dimer. In contrast, the (DCl)2 results show larger perturbations where the ground vibrational state IT splitting in D35Cl-D37Cl is 1.141(1) cm-1, which is a factor of 5.223 smaller than in the gas phase, and the tunneling motion is quenched in excited intramolecular vibrational states. The results are compared to similar measurements on (HCl)2 made in liquid helium nanodroplets to illustrate the similarities and differences in how both these quantum solvents interact with large amplitude tunneling motions of an embedded chromophore.
Collapse
Affiliation(s)
- David T Anderson
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, USA
| | - Mario E Fajardo
- Air Force Research Laboratory, Munitions Directorate, 2306 Perimeter Rd., Eglin AFB, Florida 32542-5910, USA
| | - C Michael Lindsay
- Air Force Research Laboratory, Munitions Directorate, 2306 Perimeter Rd., Eglin AFB, Florida 32542-5910, USA
| |
Collapse
|
2
|
Free rotor model or rigid rotor model for CH3F-Ne complex and comparison with other CH3F-rare gas systems. Chem Res Chin Univ 2016. [DOI: 10.1007/s40242-016-6109-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
O'Donnell BA, Beames JM, Lester MI. Experimental characterization of the CNX2Σ++ Ar and H2potentials via infrared-ultraviolet double resonance spectroscopy. J Chem Phys 2012; 136:234304. [DOI: 10.1063/1.4723696] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
4
|
Beames JM, O'Donnell BA, Ting M, Lester MI, Stephenson TA. Experimental characterization of the weakly anisotropic CN X 2Σ+ + Ne potential from IR-UV double resonance studies of the CN-Ne complex. J Chem Phys 2011; 134:184308. [PMID: 21568507 DOI: 10.1063/1.3586810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IR-UV double resonance spectroscopy has been used to characterize hindered internal rotor states (n(K) = 0(0), 1(1), and 1(0)) of the CN-Ne complex in its ground electronic state with various degrees of CN stretch (ν(CN)) excitation. Rotationally resolved infrared overtone spectra of the CN-Ne complex exhibit perturbations arising from Coriolis coupling between the closely spaced hindered rotor states (1(1) and 1(0)) with two quanta of CN stretch (ν(CN) = 2). A deperturbation analysis is used to obtain accurate rotational constants and associated average CN center-of-mass to Ne separation distances as well as the coupling strength. The energetic ordering and spacings of the hindered internal rotor states provide a direct reflection of the weakly anisotropic intermolecular potential between CN X (2)Σ(+) and Ne, with only an 8 cm(-1) barrier to CN internal rotation, from which radially averaged anisotropy parameters (V(10) and V(20)) are extracted that are consistent for ν(CN) = 0-3. Complementary ab initio calculation of the CN X (2)Σ(+) + Ne potential using MRCI+Q extrapolated to the complete one-electron basis set limit is compared with the experimentally derived anisotropy by optimizing the radial potential at each angle. Experiment and theory are in excellent accord, both indicating a bent minimum energy configuration and nearly free rotor behavior. Analogous experimental and theoretical studies of the CN-Ne complex upon electronic excitation to the CN B (2)Σ(+) state indicate a slightly more anisotropic potential with a linear CN-Ne minimum energy configuration. The results from these IR-UV double resonance studies are compared with prior electronic spectroscopy and theoretical studies of the CN-Ne system.
Collapse
Affiliation(s)
- Joseph M Beames
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA
| | | | | | | | | |
Collapse
|
5
|
Madebène B, Asselin P, Soulard P, Alikhani ME. Axial and equatorial hydrogen-bond conformers between (CH2)3S and H(D)F: Fourier transform infrared spectroscopy and ab initio calculations. Phys Chem Chem Phys 2011; 13:14202-14. [DOI: 10.1039/c1cp20668k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- B Madebène
- UPMC Univ. Paris 06, UMR 7075, Laboratoire de Dynamique, Interactions et Réactivité (LADIR), F-75005, Paris, France
| | | | | | | |
Collapse
|
6
|
A three-dimensional morphed potential of Ne–HCl including the ground state deuterated Σ bending vibration. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.06.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
7
|
Meenakshi PS, Biswas N, Wategaonkar S. Theoretical and experimental studies on the hydroquinone–argon 1:1 complex: A blueshifted O–H–Ar bond. J Chem Phys 2003. [DOI: 10.1063/1.1573189] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
|
8
|
Anderson DT, Hinde RJ, Tam S, Fajardo ME. High-resolution spectroscopy of HCl and DCl isolated in solid parahydrogen: Direct, induced, and cooperative infrared transitions in a molecular quantum solid. J Chem Phys 2002. [DOI: 10.1063/1.1421066] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
|
9
|
Xu Y, Armstrong GS, Jäger W. Spectroscopic study of the mixed rare-gas–molecule van der Waals trimer NeArHCl. J Chem Phys 1999. [DOI: 10.1063/1.478317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yunjie Xu
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | | | - Wolfgang Jäger
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| |
Collapse
|
10
|
Anderson DT, Schuder M, Nesbitt DJ. Large-amplitude motion in highly quantum clusters: high-resolution infrared absorption studies of jet-cooled H2–HCl and H2–DCl. Chem Phys 1998. [DOI: 10.1016/s0301-0104(98)00359-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
11
|
Weida MJ, Sperhac JM, Nesbitt DJ, Hutson JM. Signatures of large amplitude motion in a weakly bound complex: High‐resolution IR spectroscopy and quantum calculations for HeCO2. J Chem Phys 1994. [DOI: 10.1063/1.468099] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
12
|
Schuder MD, Nesbitt DJ. High resolution near infrared spectroscopy of HCl–DCl and DCl–HCl: Relative binding energies, isomer interconversion rates, and mode specific vibrational predissociation. J Chem Phys 1994. [DOI: 10.1063/1.466872] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
13
|
Schuder MD, Nelson DD, Nesbitt DJ. Slit‐jet near‐infrared diode laser spectroscopy of (DCl)2: ν1, ν2DCl stretching fundamentals, tunneling dynamics, and the influence of large amplitude ‘‘geared’’ intermolecular rotation. J Chem Phys 1993. [DOI: 10.1063/1.466005] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
14
|
Farrell JT, Sneh O, McIlroy A, Knight AEW, Nesbitt DJ. High‐resolution infrared overtone spectroscopy of ArHF via Nd:YAG/dye laser difference frequency generation. J Chem Phys 1992. [DOI: 10.1063/1.463471] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
Nesbitt DJ, Lascola R. Vibration, rotation, and parity specific predissociation dynamics in asymmetric OH stretch excited ArH2O: A half collision study of resonant V–V energy transfer in a weakly bound complex. J Chem Phys 1992. [DOI: 10.1063/1.463431] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Chang B, Williamson JM, Cullin DW, Dunlop JR, Miller TA. High resolution electronic spectroscopy of Ar⋅OH and Ar⋅OD vibronic bands. J Chem Phys 1992. [DOI: 10.1063/1.463423] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
17
|
McIlroy A, Nesbitt DJ. Intermolecular HF motion in ArnHF micromatrices (n=1,2,3,4): Classical and quantum calculations on a pairwise additive potential surface. J Chem Phys 1992. [DOI: 10.1063/1.463715] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
18
|
Hadder JE, Frederick JH. Molecular Hamiltonians for highly constrained model systems. J Chem Phys 1992. [DOI: 10.1063/1.462985] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
19
|
Brupbacher T, Lüthi H, Bauder A. An ab initio investigation of the potential energy surface of the benzene—neon van der Waals complex. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85548-o] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
20
|
Chang B, Cullin DW, Williamson JM, Dunlop JR, Rehfuss BD, Miller TA. High resolution electronic spectroscopy of Ne⋅OH. J Chem Phys 1992. [DOI: 10.1063/1.461901] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
21
|
McIlroy A, Nesbitt DJ. Narrow band 1.2–2.2 μm light via cw Nd: YAG/dye laser difference frequency generation: application to the overtone absorption spectrum of ArHF. Chem Phys Lett 1991. [DOI: 10.1016/0009-2614(91)90415-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|