E. No rby Svendsen

University of Pennsylvania

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jens Oddershede

University of Michigan–Ann Arbor

T. Stroyer‐Hansen

Odense University Hospital

F. Ghandour

Université de Reims Champagne-Ardenne

Hendrik F. Hameka

University of Pennsylvania

O. Sonnich Mortensen

University of Southern Denmark

Kathleen Gough

University of Manitoba

M. Jacon

Centre National de la Recherche Scientifique

William F. Murphy

University of Calgary

Cooperative Institutions

University of Copenhagen

Odense University Hospital

Université de Reims Champagne-Ardenne

University of Southern Denmark

Odense Municipality

Ørsted (Denmark)

University of Pennsylvania

Philadelphia University

University of Maryland, College Park

CECOM Software Engineering Center

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Initial and final molecular states as ‘‘virtual states’’ in two-photon processes

The Journal of Chemical Physics (1981)

O. Sonnich Mortensen E. No rby Svendsen

The expression for the cross section of a two-photon process is derived. It is shown, in contrast to the usual statements in the literature, that both initial and final molecular states should be included in the summation over virtual states. For the case of vibrational Raman scattering these extra terms contribute very little to the scattering tensor.

Virtual particle

Expression (computer science)

10.1063/1.441512

Cite

Citations (39)

Calculation of molecular electric polarizabilities and dipole moments. I. General theory and application to the hydrogen molecule

The Journal of Chemical Physics (1975)

E. No rby Svendsen Hendrik F. Hameka

We analyze a number of different procedures for calculating molecular electric polarizabilities. We find that one particular method should give reliable polarizablitiy values for nonpolar molecules, having no permanent electric dipole. It seems questionable that this method will yield accurate polarizability values for polar molecules, but in that case it may be used to calculate the electric dipole moment. We use the method to calculate the electric polarizabilities of the hydrogen molecule and the hydrogen molecular ion and we obtain satisfactory results.

Bond dipole moment

Chemical polarity

Hydrogen molecule

10.1063/1.430810

Cite

Citations (7)

Raman trace scattering intensity parameters for propane

The Journal of Chemical Physics (1987)

Kathleen Gough William F. Murphy T. Stroyer‐Hansen E. No rby Svendsen

Absolute Raman trace scattering cross sections have been measured for gaseous propane-h8, propane-d8, 1,1,1,2,3,3,3-propane-d7, and the two rotational isomers of 1,1,2,2,3,3,3-propane-d7. A set of ∂ᾱ/∂Sj intensity parameters were determined from the experimental cross sections and compared with the ones obtained from quantum chemistry calculations. The anomalous intensity ratio observed for the CH stretching bands of the two conformers of CHD2CD2CD3 is explained by an unanticipated difference in the ∂ᾱ/∂rCH value for the two types of methyl CH bonds.

Propane

Intensity

TRACE (psycholinguistics)

10.1063/1.453028

Cite

Citations (24)

A b i n i t i o calculation of the Raman intensity of the N2 molecule

The Journal of Chemical Physics (1979)

E. No rby Svendsen Jens Oddershede

The dynamic polarizability tensor of N2 has been calculated as a function of the internuclear distance by the time-dependent Hartree–Fock method. From these data we obtain the Raman scattering intensity and the depolarization ratio. Good agreement is obtained with measured Raman intensities. The rotation–vibrational Raman spectrum is calculated from a numerical solution of the Schrödinger equation for the nuclear motion, which includes the centrifugal distortion potential. We have also examined the validity of expressing the measured Raman intensities in terms of derivatives of the invariants of the polarizability tensor.

Distortion (music)

Depolarization ratio

Intensity

10.1063/1.438704

Cite

Citations (33)

Theoretical interpretation of the resonance Raman spectrum of gaseous chlorine

The Journal of Chemical Physics (1983)

F. Ghandour M. Jacon E. No rby Svendsen Jens Oddershede

A theoretical calculation of the Raman band profiles of gaseous chlorine excited by a 3638 Å line is performed. The resonance part of the Raman amplitude is calculated within a semiclassical approach and the nonresonant part by an ab initio calculation. The profiles of the overtones are well described by considering only the resonant scattering via the excited electronic state C 1Π(1u) and the anomalous value of the fundamental band intensity compared to the first overtone is shown to be due to virtual transitions to higher electronic states (normal Raman effect).

Overtone

10.1063/1.446087

Cite

Citations (18)

A b i n i t i o calculation of the dynamic polarizability of N2

The Journal of Chemical Physics (1986)

T. Stroyer‐Hansen E. No rby Svendsen

10.1063/1.450400

Cite

Citations (15)