@article {355, title = {The pure rotational spectrum, geometry and hyperfine constants of hafnium monosulfide, HfS}, journal = {Journal of Molecular Spectroscopy}, volume = {216}, number = {1}, year = {2002}, note = {ISI Document Delivery No.: 622VATimes Cited: 12Cited Reference Count: 47}, month = {Nov}, pages = {122-130}, type = {Article}, abstract = {{The pure rotational spectra of seven isotopomers of hafnium monosulfide have been measured for several vibrational states. For the most abundant isotopomer, (HfS)-Hf-180-S-32, the J = 1 - 0}, keywords = {BORN-OPPENHEIMER APPROXIMATION, DIATOMIC-MOLECULES, DIPOLE-MOMENTS, DUNHAM COEFFICIENTS, EMISSION-SPECTRUM, FOURIER-TRANSFORM SPECTROSCOPY, HIGH-RESOLUTION, ISOTOPE DEPENDENCE, MICROWAVE SPECTROSCOPY, STATES}, isbn = {0022-2852}, url = {://000179666700015}, author = {Cooke, S. A. and Gerry, M. C. L.} } @article {4866, title = {The hyperfine structures of ScCl and ScF}, journal = {Journal of Molecular Spectroscopy}, volume = {199}, number = {2}, year = {2000}, note = {ISI Document Delivery No.: 278NYTimes Cited: 20Cited Reference Count: 48}, month = {Feb}, pages = {275-283}, type = {Article}, abstract = {The Fourier transform microwave spectra of gaseous ScF and ScCl have been measured in their (1)Sigma(+) ground electronic states. Transitions have been observed for ScF (J = 1-0) and for both (SCCl)-Cl-35 and (SCCl)-Cl-37 (J = 1-0 and J = 2-1) in the ground vibrational state, and for (SCCl)-Cl-35 (J = 1-0 and J = 2-1) in the first excited vibrational state. The nuclear quadrupole coupling constants of Sc and of both isotopes of Cl, the spin-rotation constants for all the nuclei and the nuclear spin-nuclear spin constants for both molecules, have been determined. From these hyperfine constants, the electronic structures of ScF and ScCl have been investigated and comparisons have been made to similar molecules. ScCl has been found to be highly ionic. For (ScCl)-Cl-35, the equilibrium bond length has been reevaluated and the vibration frequency and dissociation energy have been estimated. A simple approach to account for the Sc quadrupole coupling constants has been shown to be flawed. (C) 2000 Academic Press.}, keywords = {DIPOLE-MOMENTS, ELECTRONIC-STRUCTURE, GAUSSIAN-BASIS SETS, LASER-ABLATION, MOLECULAR CALCULATIONS, ROW ATOMS, SCANDIUM MONOCHLORIDE, SINGLET-STATES, SPECTROSCOPY, SPIN INTERACTIONS}, isbn = {0022-2852}, url = {://000084996900015}, author = {Lin, W. and Beaton, S. A. and Evans, C. J. and Gerry, M. C. L.} } @article {4471, title = {Rotational spectra and hyperfine constants of ZrO and ZrS}, journal = {Journal of Chemical Physics}, volume = {110}, number = {22}, year = {1999}, note = {ISI Document Delivery No.: 199FFTimes Cited: 32Cited Reference Count: 49}, month = {Jun}, pages = {10715-10724}, type = {Article}, abstract = {The pure rotational spectra of ZrO and ZrS have been recorded using cavity Fourier transform microwave spectroscopy in the frequency range 9-26 GHz. The molecules were generated by laser ablation of a solid Zr rod in the presence of 0.05\% of O-2 or H2S, respectively, in either argon or neon. Rotational spectra of five previously unobserved isotopomers of ZrO in the X(1)Sigma(+) state have been measured. Spectra for all five (ZrS)-S-32 isotopomers and for the (ZrS)-Zr-90-S-34 isotopomer in natural abundance have also been measured; this is the first report of pure rotational transitions for ZrS. Transitions in several excited vibrational states were also measured for the most abundant isotopomers of both species. Atomic mass-dependent Born-Oppenheimer breakdown correction terms were determined by fitting the data obtained for each molecule to a Dunham-like expression. Values for the equilibrium bond lengths of the two species were also calculated from the results of these fits. For both the (ZrS)-Zr-91-S-32 and (ZrO)-Zr-91-O-16 isotopomers, nuclear hyperfine structure due to the zirconium nucleus was observed and values for eQ(q0) (Zr-91) and C-I (Zr-91) have been determined. A rotational transition in the low lying a (3)Delta state of ZrS has also been observed. (C) 1999 American Institute of Physics. [S0021-9606(99)00121-X].}, keywords = {BORN-OPPENHEIMER APPROXIMATION, COEFFICIENTS, DEPENDENCE, DIATOMIC-MOLECULES, DIPOLE-MOMENTS, DUNHAM, FOURIER-TRANSFORM SPECTROSCOPY, ISOTOPE, LOW-TEMPERATURE, METAL-OXIDES, REFRACTORY MOLECULES, ZIRCONIUM OXIDE}, isbn = {0021-9606}, url = {://000080469200010}, author = {Beaton, S. A. and Gerry, M. C. L.} } @article {3274, title = {DENSITY-FUNCTIONAL CALCULATION OF CORE-ELECTRON BINDING-ENERGIES OF C, N, O, AND F}, journal = {Journal of Chemical Physics}, volume = {103}, number = {5}, year = {1995}, note = {ISI Document Delivery No.: RL767Times Cited: 78Cited Reference Count: 39}, month = {Aug}, pages = {1842-1845}, type = {Article}, abstract = {The unrestricted generalized transition-state model using B88/P86 functional with Dunning{\textquoteright}s cc-pV5Z basis set, found to be an excellent method of calculating core-electron binding energies (CEBEs), was further applied to many more molecules, some of which contain atoms from the third period. Estimation of relativistic corrections has also been refined. The average absolute deviation of over 50 calculated CEBEs from experiment is 0.30 eV before inclusion of approximate relativistic corrections (C-rel), and 0.23 eV after adding C-rel. Those molecules with observed CEBEs served to confirm our procedure, whereas the other cases provided our prediction of CEBEs. (C) 1995 American Institute of Physics.}, keywords = {APPROXIMATION, BASIS-SETS, DIPOLE-MOMENTS, EXCHANGE, GASEOUS ATOMS, HARTREE-FOCK, HYPERPOLARIZABILITIES, LOCAL-DENSITY, MOLECULES, POLARIZABILITIES}, isbn = {0021-9606}, url = {://A1995RL76700013}, author = {Chong, D. P.} } @article {3571, title = {PULSED-BEAM MICROWAVE FOURIER-TRANSFORM MEASUREMENTS ON ISOTOPICALLY SUBSTITUTED VAN-DER-WAALS DIMER NE-OCS}, journal = {Journal of Molecular Spectroscopy}, volume = {169}, number = {2}, year = {1995}, note = {ISI Document Delivery No.: QD984Times Cited: 12Cited Reference Count: 23}, month = {Feb}, pages = {542-554}, type = {Article}, abstract = {Pure rotational spectra of seven isotopomers of Ne-OCS (Ne-OCS, Ne-22-OCS, Ne-21-OCS, Ne-(OCS)-O-18, Ne-(OCS)-C-13, Ne-(OCS)-S-34, and Ne-(OCS)-S-33) have been investigated using a pulsed jet cavity microwave Fourier transform spectrometer. Rotational and centrifugal distortion constants have been determined for all species, as well as the nuclear quadrupole coupling constants of S-33 and Ne-21 in Ne-(OCS)-S-33 and Ne-21-OCS, respectively. Harmonic force field analyses have been performed which account for the Variations in the distortion constants between the isotopomers. Effective and ground state average structures have been obtained and are discussed in light of the nuclear quadrupole coupling constants and of dipole moment measurements. The determined coupling constants have provided a means of comparing the effects of perturbation of the electronic structures of both constituents upon complexation. An electrostatic model has been applied to calculate the Ne-21 coupling constants and a possible source of their disagreement with experiment is discussed. (C) 1995 Academic Press, Inc.}, keywords = {AR, COMPLEXES, DIPOLE-MOMENTS, FORCE-FIELD, INFRARED-ABSORPTION, KR, KR-83, QUADRUPOLE, ROTATIONAL SPECTRUM, SPECTROSCOPY}, isbn = {0022-2852}, url = {://A1995QD98400022}, author = {Xu, Y. J. and Gerry, M. C. L.} } @article {2834, title = {PURE ROTATIONAL SPECTRA OF THE MIXED RARE-GAS VAN-DER-WAALS COMPLEXES NE-XE, AR-XE, AND KR-XE}, journal = {Journal of Chemical Physics}, volume = {99}, number = {2}, year = {1993}, note = {ISI Document Delivery No.: LM894Times Cited: 48Cited Reference Count: 50}, month = {Jul}, pages = {919-927}, type = {Article}, abstract = {Pure rotational transitions in the vibrational ground states of various isotopomers of the heteronuclear rare gas dimers Ne-Xe, Ar-Xe, and Kr-Xe have been measured using a pulsed molecular beam cavity microwave Fourier transform spectrometer. Rotational and centrifugal distortion constants have been obtained, and have yielded estimates of the lengths of the van der Waals bonds and of their harmonic vibration frequencies. Effects due to nuclear quadrupole coupling have been observed in Xe-131-containing complexes and have yielded the corresponding nuclear quadrupole coupling constants. The electric molecular dipole moments of the complexes have been estimated from the excitation pulse lengths, optimized for maximum signal strength (pi/2 condition).}, keywords = {ARGON, CONSTANTS, curve, DIPOLE-MOMENTS, EXCITED-STATES, INTERATOMIC POTENTIALS, PAIRS, SPECTROMETER, TRANSFORM MICROWAVE SPECTROSCOPY, ULTRAVIOLET-LASER SPECTROSCOPY}, isbn = {0021-9606}, url = {://A1993LM89400017}, author = {Jager, W. and Xu, Y. J. and Gerry, M. C. L.} }