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Vibrational intensities and anharmonicity in MIR, NIR and Raman spectra of liquid CHCl3, CDCl3, CHBr3 and CDBr3: Spectroscopic and theoretical study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tasinato N, Regini G, Stoppa P, Charmet AP, Gambi A. Anharmonic force field and vibrational dynamics of CH2F2 up to 5000 cm−1 studied by Fourier transform infrared spectroscopy and state-of-the-art ab initio calculations. J Chem Phys 2012; 136:214302. [DOI: 10.1063/1.4720502] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Marquardt R, Sanrey M, Gatti F, Le Quéré F. Full-dimensional quantum dynamics of vibrationally highly excited NHD2. J Chem Phys 2010; 133:174302. [DOI: 10.1063/1.3496374] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Perez-Delgado Y, Manzanares CE. Cavity Ring Down and Fourier Transform Infrared Spectroscopy at Low Temperatures (84−297 K): Fermi Resonance and Intensities of the C−H Fundamental and Overtone (Δυ = 1−6) Transitions of CHD 3. J Phys Chem A 2010; 114:7918-27. [DOI: 10.1021/jp105382p] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yasnahir Perez-Delgado
- Department of Chemistry & Biochemistry, Baylor University, 101 Bagby Avenue, Baylor Sciences Building E-216, Waco, Texas 76706
| | - Carlos E. Manzanares
- Department of Chemistry & Biochemistry, Baylor University, 101 Bagby Avenue, Baylor Sciences Building E-216, Waco, Texas 76706
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Hippler M, Quack M. Intramolecular energy transfer from isotope selective overtone spectroscopy by vibrationally assisted dissociation and photofragment ionization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19971010307] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Blunt VM, Brock A, Manzanares IC. Overtone Spectroscopy of CHD3in Liquid Argon Solutions. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19950990342] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Hippler M, Quack M. Overtone Spectroscopy of Chloroform in a Supersonic Jet by Vibrationally Assisted Dissociation and Photofragment Ionization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19950990327] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Horká V, Quack M, Willeke M. Analysis of the CH-chromophore spectra and dynamics in dideutero-methyliodide CHD2I1. Mol Phys 2008. [DOI: 10.1080/00268970802275611] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hippler M. Quantum chemical study and infrared spectroscopy of hydrogen-bonded CHCl3–NH3 in the gas phase. J Chem Phys 2007; 127:084306. [PMID: 17764247 DOI: 10.1063/1.2757176] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Molecular association of chloroform with ammonia is studied by high-level quantum chemical calculations including correlated MP2 and CCSD(T) calculations with basis sets up to6-311++G(d,p) and counterpoise corrected energies, geometries, and frequencies. The calculations predict an eclipsed hydrogen-bonded complex of C(3v) symmetry (DeltaE(0)=-15.07 kJ mol(-1)) with 225.4 pm intermolecular CHcdots, three dots, centeredN distance. Intermolecular interactions are analysed by Kitaura-Morokuma [Int. J. Quantum Chem. 10, 325 (1976)] interaction energy decomposition. Compared to the monomer, the C-H bond is elongated, and the CH-stretching fundamental shifts to lower wave numbers and has a marked approximately 340-fold increase of its intensity. Based on these predictions, the complex is observed by infrared spectroscopy in the gas phase at room temperature. A subtraction procedure isolates its spectrum, and a dilution series confirms the presence of a 1:1 complex. The CHCl(3)cdots, three dots, centeredNH(3) complex has an experimental -17.5 cm(-1) shift of its CH-stretching vibration, and CDCl(3)cdots, three dots, centeredNH(3) a -12.5 cm(-1) shift of the CD-stretching vibration. After a deperturbation of the CH-stretching/bending mode Fermi resonance system, this indicates a "redshifting" or more appropriately, a "C-H elongating" hydrogen bond in agreement with the ab initio calculations. An estimate of the complex concentration gives the equilibrium constant K(p)=0.024 (p(theta)=10(5) Pa) at 295 K for the dimerization, providing one of the few examples where a hydrogen-bonded gas phase complex at room temperature could be quantitatively studied by infrared spectroscopy.
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Affiliation(s)
- Michael Hippler
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom.
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Camden JP, Bechtel HA, Ankeny Brown DJ, Zare RN. Comparing reactions of H and Cl with C–H stretch-excited CHD3. J Chem Phys 2006; 124:034311. [PMID: 16438587 DOI: 10.1063/1.2155434] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report the methyl radical product state distributions for the reactions of H and Cl with CHD3(nu1 = 1,2) at collision energies of 1.53 and 0.18 eV, respectively. Both reactions demonstrate mode selectivity. The resulting state distributions from the H+CHD3(nu1 = 1,2) reactions are well described by a spectator model. The reactions Cl + CHD3(nu1 = 1,2) exhibit similar behavior, but in some aspects the spectator model breaks down. We attribute this breakdown to enhanced intramolecular vibrational redistribution in the Cl + CHD3(nu1 = 1,2) reactions compared to the H + CHD3(nu1 = 1,2) reactions, caused by the interaction of the slower Cl atom with the vibrationally excited CHD3, which is promoted either by its longer collision duration, its stronger coupling, or both.
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Affiliation(s)
- Jon P Camden
- Department of Chemistry, Stanford University, Stanford, California 94305-5080, USA
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Evidence for a blue-shifting intramolecular hydrogen bond in the vibrational overtone spectrum of 1H-nonafluorobutane. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.09.124] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Rodziewicz P, Melikova SM, Rutkowski KS, Buda F. Car-Parrinello Molecular Dynamics Study of a Blue-Shifted Intermolecular Weak-Hydrogen-Bond System. Chemphyschem 2005; 6:1719-24. [PMID: 16086357 DOI: 10.1002/cphc.200400577] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pawel Rodziewicz
- Faculty of Chemistry, University of Wroclaw, 14 F. Joliot-Curie 50-383 Wroclaw, Poland
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Blue shifted F3CH⋯FCD3 and Cl3CH⋯FCD3 weakly H-bound complexes. Cryospectroscopic and ab initio study. Chem Phys 2005. [DOI: 10.1016/j.chemphys.2005.01.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Herrebout WA, Melikova SM, Delanoye SN, Rutkowski KS, Shchepkin DN, van der Veken BJ. A Cryosolution Infrared Study of the Complexes of Fluoroform with Ammonia and Pyridine: Evidence for a C−H···N Pseudo Blue-Shifting Hydrogen Bond. J Phys Chem A 2005; 109:3038-44. [PMID: 16833627 DOI: 10.1021/jp0448696] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mid-infrared spectra of mixed solutions in liquid xenon containing fluoroform and either ammonia or pyridine have been investigated at temperatures between 173 and 213 K. For both Lewis bases, a new band is found in the CH stretching region at a frequency approximately 5 cm(-1) higher than that of monomer fluoroform, which is assigned to a complex between fluoroform and the Lewis base. A detailed analysis of the nu1/2nu(4) Fermi resonance in the proton donor shows that the blue shifts observed for the complexes are not caused by a strengthening of the CH bond during the complexation, but are due to the changes in the Fermi resonance interactions. Information on the nu1/2nu(4) Fermi resonance was also obtained for the complexes of fluoroform with dimethyl ether and trimethyl amine.
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Affiliation(s)
- Wouter A Herrebout
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
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Ramesh SG, Sibert EL. A study of the vibrations of fluoroform with a sixth order nine-dimensional potential: a combined perturbative-variational approach. Mol Phys 2005. [DOI: 10.1080/00268970512331316247] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Melikova S, Rutkowski K, Rodziewicz P, Koll A. Comparative studies of blue shifting and red shifting effects in fluoroform and acetylene cryogenic solutions. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.05.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Breidung J, Cosléou J, Demaison * J, Sarka K, Thiel W. Ab initioanharmonic force field, molecular parameters, equilibrium structure and enthalpy of formation of fluoroform. Mol Phys 2004. [DOI: 10.1080/00268970412331287089] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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HA TAEKYU, QUACK MARTIN, STOHNER JÜRGEN. Spectroscopy and dynamics of the isolated sp2CH chromophore in trideuteroacetaldehyde CD3CHO as derived from extrapolated SDCIab initiocalculations. Mol Phys 2002. [DOI: 10.1080/00268970210121641] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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DING YUN, HE SHENGGUI, ZHENG JINGJING, HU SHUIMING, WANG XIANGHUAI, ZHU QINGSHI. Overtone spectrum and the Fermi resonance of the SiH chromophore in SiHCI3. Mol Phys 2001. [DOI: 10.1080/00268970110063926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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24
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He SG, Yuan LF, Lin H, Zhu QS, Wang XG. Study of the Perpendicular Band Intensities of the CH Chromophore in CHCl3, CHBr3, and CHI3 with Three-Dimensional Dipole Moment Surface from Density Functional Calculations. J Phys Chem A 2001. [DOI: 10.1021/jp0040906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sheng-Gui He
- Open Laboratory of Bond Selective Chemistry, and the Institute for Advanced Studies, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Lan-Feng Yuan
- Open Laboratory of Bond Selective Chemistry, and the Institute for Advanced Studies, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hai Lin
- Open Laboratory of Bond Selective Chemistry, and the Institute for Advanced Studies, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Qing-Shi Zhu
- Open Laboratory of Bond Selective Chemistry, and the Institute for Advanced Studies, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiao-Gang Wang
- Departement de chimie, Universite de Montreal, C.P. 6128, succursale Centre-ville, Montreal, Quebec H3C 3J7, Canada
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DONLEY EA, MARQUARDTT R, QUACK M, STOHNER J, THANOPULOS I, WALLENBORN EU. Some simple mechanisms of multiphoton excitation in many-level systems. Mol Phys 2001. [DOI: 10.1080/00268970010009657] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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26
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He SG, Zheng JJ, Hu SM, Lin H, Ding Y, Wang XH, Zhu QS. The stretching vibrational overtone spectra of PH3: Local mode vibrational analysis, dipole moment surfaces from density functional theory and band intensities. J Chem Phys 2001. [DOI: 10.1063/1.1352038] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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D parameter of the morse potential as a new bond index for estimating bond breaking energy in a molecule. ADVANCES IN QUANTUM CHEMISTRY 2001. [DOI: 10.1016/s0065-3276(01)40013-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Beil A, Hollenstein H, Monti OLA, Quack M, Stohner J. Vibrational spectra and intramolecular vibrational redistribution in highly excited deuterobromochlorofluoromethane CDBrClF: Experiment and theory. J Chem Phys 2000. [DOI: 10.1063/1.1302083] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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29
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Pochert J, Quack M, Stohner J, Willeke M. Ab initio calculation and spectroscopic analysis of the intramolecular vibrational redistribution in 1,1,1,2-tetrafluoroiodoethane CF3CHFI. J Chem Phys 2000. [DOI: 10.1063/1.1302084] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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CEDEÑO DAVIDL, PENG JINGPING, REYNOLDS DOVIE, MINA-CAMILDE NAIRMEN, MANZANARES CARLOS. Infrared absorptions and band widths of dilute solutions of CF3H in liquid Ar, N2, and Xe. Mol Phys 1999. [DOI: 10.1080/00268979909483118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Cronin TJ, Wang X, Bethardy GA, Perry DS. High-Resolution Infrared Spectra in the C-H Region of CH2F2: The nu6 and 2nu2 Bands. JOURNAL OF MOLECULAR SPECTROSCOPY 1999; 194:236-242. [PMID: 10079162 DOI: 10.1006/jmsp.1998.7800] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
High-resolution, infrared absorption spectra of the nu6 (asymmetric C-H stretch) and 2nu2 (H-C-H symmetric bend overtone) bands of jet-cooled CH2F2 are reported with a sub-Doppler resolution of approximately 0.002 cm-1. More than 600 transitions were observed in the range of 3002-3036 cm-1, of which 268 were assigned the nu6 fundamental and 184 were assigned to the 2nu2 overtone. A fit of the nu6 band to the A-reduced Watson Hamiltonian yielded eight effective constants including nu0 = 3014.0503(1), A' = 1.62868(4), B' = 0.354165(5), and C' = 0.308852(3) cm-1. Similarly, the weaker 2nu2 band was fit to seven parameters including nu0 = 3026.2297(2), and A' = 1.63396(6), B' = 0.35367(1), and C' = 0.31183(1) cm-1. Numbers in parentheses are two standard deviations in units of the last digit. Anomalous values of the A rotational constant and the DeltaK centrifugal distortion constant are attributed to an a-axis Coriolis interaction between the 2nu2 and nu6 bands. The relative intensity of the 2nu2 band is used to estimate the stretch-bend anharmonic interaction with nu1. Copyright 1999 Academic Press.
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Affiliation(s)
- TJ Cronin
- Department of Chemistry, University of Akron, Akron, Ohio, 44325-3601
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Marquardt R, Quack M. Global analytical potential hypersurfaces for large amplitude nuclear motion and reactions in methane. I. Formulation of the potentials and adjustment of parameters to ab initio data and experimental constraints. J Chem Phys 1998. [DOI: 10.1063/1.476513] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Roberto Marquardt
- Laboratorium für Physikalische Chemie, ETH-Zürich (Zentrum), 8092 Zürich, Switzerland
| | - Martin Quack
- Laboratorium für Physikalische Chemie, ETH-Zürich (Zentrum), 8092 Zürich, Switzerland
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Colmont J, Priem D, Dréan P, Demaison J, Boggs JE. Rotational Spectra of the Isotopic Species of Chloroform: Experimental and Ab Initio Structures. JOURNAL OF MOLECULAR SPECTROSCOPY 1998; 191:158-175. [PMID: 9724592 DOI: 10.1006/jmsp.1998.7623] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The millimeter-wave spectra of three different samples of chloroform (CHCl3, CDCl3, and 13CHCl3) have been measured between 145 and 470 GHz which corresponds to J values between 22 and 70. We report accurate rotational and centrifugal distortion constants for the ground vibrational states of 11 isotopic species. The experimental ro, rs, rIepsilon, rrho<INF POS="STACK">m, and rz structures have been determined using the determined rotational constants. The structure has also been calculated ab initio at the SCF, MP2, RQCISD, and B3LYP levels using triple zeta polarized basis sets. The experimental results are found in excellent agreement with the ab initio predictions. An approximate equilibrium structure has been obtained by combining the experimental results and the ab initio calculations: re(C-H) = 1.080 (2) Å, re(C-Cl) = 1.760 (2) Å, and anglee(HCCl) = 108.23 (2) degrees. Copyright 1998 Academic Press.
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Affiliation(s)
- J Colmont
- UMR CNRS, Universitéde Lille I, Villeneuve d'Ascq Cedex, 59655, France
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He Y, Hippler M, Quack M. High-resolution cavity ring-down absorption spectroscopy of nitrous oxide and chloroform using a near-infrared cw diode laser. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)00424-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Boyarkin OV, Lubich L, Settle RDF, Perry DS, Rizzo TR. Intramolecular energy transfer in highly vibrationally excited methanol. I. Ultrafast dynamics. J Chem Phys 1997. [DOI: 10.1063/1.475041] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Model atom approximation for estimating the localized bond energy based on the Morse potential. J STRUCT CHEM+ 1997. [DOI: 10.1007/bf02762648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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37
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Solá IR, Muñoz-Crego C, Dı́az A, Muñoz-Sanz R, Santamarı́a J. A three-dimensional wave-packet method for the CH overtone spectroscopy and intramolecular vibrational relaxation dynamics of the fluoroform molecule. J Chem Phys 1997. [DOI: 10.1063/1.473386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I. R. Solá
- Departamento Quı́mica-Fı́sica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - C. Muñoz-Crego
- Departamento Quı́mica-Fı́sica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - A. Dı́az
- Departamento Quı́mica-Fı́sica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - R. Muñoz-Sanz
- Departamento Quı́mica-Fı́sica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - J. Santamarı́a
- Departamento Quı́mica-Fı́sica I, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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Abstract
The dynamics of unimolecular reactions can be modelled by classical mechanics for the motion of nuclei on Born-Oppenheimer or other effective potential surfaces, by the corresponding quantum mechanical equations of motion and, perhaps, by quantum statistical treatments. In this paper I provide a synopsis of fundamental, qualitatively important effects arising from the quantum nature of intramolecular dynamics, as opposed to classical mechanics, and illustrate these with theoretical predictions and experimental examples from the work of my group in Zurich. These include quantum nonlinearity in infrared (IR) multiphoton excitation and reaction, non-classical wavepacket spreading in the Fermi resonance coupled modes in CHX3 molecules, effects of zero point energy and angular momentum in unimolecular reactions, nuclear spin symmetry conservation and inter con version and the hypothetical effects arising from the violation of parity and time reversal symmetry in unimolecular reactions. Specific applications to experiments include IR laser chemistry of CF3I and CF3Br, IR spectroscopy and dynamics of CHF3 and predissociation spectra and dynamics of II
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SIGNORELL RUTH, MARQUARDT ROBERTO, QUACK MARTIN, A.SUHM MARTIN. The permanentectric dipole moment of CH2D2: FIR el spectroscopy. Mol Phys 1996. [DOI: 10.1080/002689796174146] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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41
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Hippler M, Quack M. Isotope selective overtone spectroscopy of CHCl3 by vibrationally assisted dissociation and photofragment ionization. J Chem Phys 1996. [DOI: 10.1063/1.471457] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Maynard AT, Wyatt RE, Iung C. A quantum dynamical study of CH overtones in fluoroform. I. A nine‐dimensionalabinitiosurface, vibrational spectra and dynamics. J Chem Phys 1995. [DOI: 10.1063/1.470149] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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43
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Marquardt R, Gonçalves NS, Sala O. Overtone spectrum of the CH chromophore in CHI3. J Chem Phys 1995. [DOI: 10.1063/1.470150] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Beckmann K, Gerhards M, Kleist E, Bettermann H. Vibrational transitions of coupled stretching and bending overtones in chloroform. J Chem Phys 1995. [DOI: 10.1063/1.470485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Iung C, Leforestier C. Direct calculation of overtones: Application to the CD3H molecule. J Chem Phys 1995. [DOI: 10.1063/1.468837] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Palmieri P, Tarroni R, Hühn MM, Handy NC, Willetts A. An improved anharmonic force field of CHClF2. Chem Phys 1995. [DOI: 10.1016/0301-0104(94)00316-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Kauppi E. Effects of X3frame vibrations on the CH chromophore in CHX3type molecules: Harmonic coupling in curvilinear internal coordinate approach. J Chem Phys 1994. [DOI: 10.1063/1.468371] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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