@article {1416,
	title = {Energetics and dynamics of threshold photoion-pair formation in HF/DF},
	journal = {Journal of Chemical Physics},
	volume = {124},
	number = {7},
	year = {2006},
	note = {ISI Document Delivery No.: 014IPTimes Cited: 4Cited Reference Count: 36},
	month = {Feb},
	pages = {10},
	type = {Article},
	abstract = {Threshold ion-pair production spectroscopy (TIPPS) has been applied to two isotopomers, HF and DF. From the high resolution (similar to 0.3 cm(-1)) TIPP spectra, the ion-pair thresholds of HF/DF have been precisely measured. Combined with the ionization energy of H(D), the electron affinity of F, and the zero point energies of HF/DF, the difference between their classical bond dissociation energies was obtained as D-e(H-F)-D-e(D-F)=12.4 +/- 0.5 cm(-1). Our result provides an experimental estimate of the Born-Oppenheimer breakdown in the ground electronic state. The present work also measured the total ion-pair yield spectra of HF and DF in the threshold region, and the ion-pair formation mechanisms of these two molecules were discussed in light of the high resolution results.},
	keywords = {Born-Oppenheimer breakdown, DIATOMIC HYDRIDES, DISSOCIATION-ENERGIES, ELECTRONIC-SPECTRUM, HF, ION, ISOTOPIC DEPENDENCE, PHOTOELECTRON-SPECTROSCOPY, PRODUCTION SPECTROSCOPY, X1-SIGMA+ STATES},
	isbn = {0021-9606},
	url = {<Go to ISI>://000235473500019},
	author = {Hu, Q. J. and Hepburn, J. W.}
}
@article {1574,
	title = {High resolution laser induced fluorescence spectroscopy of the [18.8] (3)Phi(i)-X (3)Phi(i) (0,0) band of cobalt monofluoride},
	journal = {Journal of Chemical Physics},
	volume = {125},
	number = {6},
	year = {2006},
	note = {ISI Document Delivery No.: 073TITimes Cited: 5Cited Reference Count: 33Steimle, Timothy C. Ma, Tongmei Adam, Allan G. Hamilton, William D. Merer, Anthony J.},
	month = {Aug},
	pages = {9},
	type = {Article},
	abstract = {The fine and hyperfine interaction parameters in the [18.8] (3)Phi (upsilon=0) and X (3)Phi (upsilon=0) states of cobalt monofluoride, CoF, have been determined from an analysis of high-resolution laser induced fluorescence spectra of the [18.8] (3)Phi(3)-X (3)Phi(3) and [18.8] (3)Phi(4)-X (3)Phi(4) band systems. The previously reported pure rotational transitions of the X (3)Phi(4)(upsilon=0) state [T. Okabayashi and M. Tanimoto, J. Mol. Spectrosc. 221, 149 (2003)] were included in the data set. The hyperfine parameters for Co-59 (I=7/2) and F-19 (I=1/2) have been interpreted using atomic data together with a proposed molecular orbital description for the [18.8](3)Phi(i) and X (3)Phi(i) states. A comparison of the hyperfine parameters in the X (3)Phi state of cobalt monohydride, CoH, with those of the X (3)Phi state of CoF reveals that the bonding in the two molecules is significantly different. It is shown that, in a situation where the Omega substates of a multiplet degenerate electronic state are analyzed separately, the Fermi contact parameter b can be determined with fair accuracy from the apparent centrifugal distortion of the hyperfine structure. (c) 2006 American Institute of Physics.},
	keywords = {ALTERNATING COPOLYMERIZATION, CARBON-DIOXIDE, COF, COMPLEXES, ELECTRONIC-SPECTRUM, GROUND-STATE, HYPERFINE-STRUCTURE, PARAMETERS, PROPYLENE-OXIDE, TRANSITION-METAL},
	isbn = {0021-9606},
	url = {<Go to ISI>://000239765100017},
	author = {Steimle, T. C. and Ma, T. M. and Adam, A. G. and Hamilton, W. D. and Merer, A. J.}
}
@article {630,
	title = {The Renner-Teller effect and Sears resonances in the ground state of the GeCH and GeCD free radicals},
	journal = {Journal of Chemical Physics},
	volume = {119},
	number = {19},
	year = {2003},
	note = {ISI Document Delivery No.: 738EFTimes Cited: 8Cited Reference Count: 15},
	month = {Nov},
	pages = {10115-10124},
	type = {Article},
	abstract = {The vibrational energy levels of the jet-cooled GeCH and GeCD radicals have been studied by a combination of laser-induced fluorescence and wavelength-resolved emission techniques. The radicals were produced in a pulsed electric discharge free jet expansion using methyltrichlorogermane and tetramethylgermane-d(12) precursors. A re-examination of the weaker hot bands in the LIF spectrum has provided a more complete vibrational analysis of the upper state energy levels. The single vibronic level emission spectra obtained by pumping several bands of each isotopomer were analyzed to provide information on the low-lying ground state vibronic energy levels up to 3000 cm(-1) above the zero-point level. Strong interactions occur in these molecules between vibronic levels with the same value of P, but differing by one unit of v(2); such interactions were first described for NCS by Northrup and Sears [Mol. Phys. 71, 45 (1990)] and are conveniently called "Sears resonances." The spectra of GeCH were further complicated by Fermi resonances between the bending and Ge-C stretching levels. Despite these difficulties, it proved possible to analyze the data using a standard Renner-Teller model with the addition of Sears resonance coupling terms. The validity of the fitted parameters was tested using the isotope relations. The Sears resonance parameters for GeCH are much larger than those of NCS, a result of the much stronger vibronic coupling in the germanium methylidynes. (C) 2003 American Institute of Physics.},
	keywords = {ELECTRONIC-SPECTRUM, GERMANIUM METHYLIDYNE, ORBITAL ANGULAR-MOMENTUM, SILICON METHYLIDYNE SICH, SPECTROSCOPY},
	isbn = {0021-9606},
	url = {<Go to ISI>://000186273200016},
	author = {He, S. G. and Li, H. Y. and Smith, T. C. and Clouthier, D. J. and Merer, A. J.}
}
@article {5200,
	title = {Orbital angular momentum (Renner-Teller) effects in the (2)Pi(i) ground state of silicon methylidyne (SiCH)},
	journal = {Journal of Chemical Physics},
	volume = {114},
	number = {2},
	year = {2001},
	note = {ISI Document Delivery No.: 388ZMTimes Cited: 19Cited Reference Count: 42},
	month = {Jan},
	pages = {725-734},
	type = {Article},
	abstract = {The ground state vibrational energy levels of jet-cooled SiCH and SiCD have been studied by a combination of laser-induced fluorescence and wavelength-resolved fluorescence techniques. The radicals were produced by a pulsed electric discharge at the exit of a supersonic expansion using tetramethylsilane or methyltrichlorosilane as the precursor. Emission spectra have been obtained by pumping both perpendicular and parallel (vibronically induced) bands, providing complementary information on the Si-C stretching and Si-C-H bending modes. Ground state energy levels up to 4000 cm(-1) have been assigned and fitted using a vibrational Hamiltonian that incorporates Renner-Teller, spin-orbit, vibrational anharmonicity, and Fermi resonance interactions. The validity of the derived parameters has been tested using the isotope relations. (C) 2001 American Institute of Physics.},
	keywords = {ELECTRONIC-SPECTRUM, FERMI-RESONANCE INTERACTIONS, GAS-PHASE, MOLECULAR-STRUCTURE, MONOFLUOROSILYLENE, PYROLYSIS JET SPECTROSCOPY, SIMPLEST UNSATURATED SILYLENE, spin-orbit, TRIATOMIC-MOLECULES, VIBRATIONAL FREQUENCIES},
	isbn = {0021-9606},
	url = {<Go to ISI>://000166213000011},
	author = {Smith, T. C. and Li, H. Y. and Hostutler, D. A. and Clouthier, D. J. and Merer, A. J.}
}
@article {3981,
	title = {F-19 spin-rotation constants and shielding tensor of sulphur difluoride from its microwave spectrum},
	journal = {Journal of Chemical Physics},
	volume = {106},
	number = {17},
	year = {1997},
	note = {ISI Document Delivery No.: WV763Times Cited: 12Cited Reference Count: 46},
	month = {May},
	pages = {6916-6922},
	type = {Article},
	abstract = {The microwave spectrum of the unstable molecule sulphur difluoride, SF2, prepared via a pulsed electric discharge in an SF6/OCS mixture, has been measured using a pulsed jet cavity Fourier transform spectrometer. F-19 hyperfine structure has been resolved, and unusually small, negative values have been determined for two of the spin-rotation coupling constants. These constants have been used to calculate the 19F principal, inertial axis nuclear shielding components; the determined paramagnetic shieldings are also unusual and produce a large positive average shielding, sigma(av). The shieldings have been compared with the corresponding constants obtained for OF2, SiF2, and GeF2. The results for SF2 are consistent with values determined from earlier NMR experiments and ab initio calculations. The origin of the unusual shieldings has been found, and is discussed, using a semi-quantitative model, in terms of the geometry and the electronic energy level structure of the molecule. (C) 1997 American Institute of Physics.},
	keywords = {DIPOLE, DISCHARGE, ELECTRONIC-SPECTRUM, GAS-PHASE, HYPERFINE CONSTANTS, INFRARED-SPECTRUM, OXYGEN DIFLUORIDE, SF2, SPECTROSCOPY, SULFUR DIFLUORIDE},
	isbn = {0021-9606},
	url = {<Go to ISI>://A1997WV76300014},
	author = {Gatehouse, B. and Muller, H. S. P. and Gerry, M. C. L.}
}
