Now showing items 41-50 of 298
The microwave spectrum and structure of the furan [middle dot] sulfur dioxide complex
(Elsevier, 1992)
The microwave spectrum of furan [middle dot] sulfur dioxide complex has been observed with a pulsed molecular beam Fourier transform microwave spectrometer. Transitions having a-, b-, and c-dipole selection rules were all ...
Energy Expectation Values and the Integral Hellmann–Feynman Theorem: H2+ Molecule
(The American Institute of Physics, 1968-08-01)
It is by now well known that the integral Hellmann–Feynman (IHF) theorem has little quantitative utility for chemically interesting problems, although the formalism potentially affords a ready physical interpretation of ...
Intermolecular multiple scattering of electrons. I. Theory
(The American Institute of Physics, 1983-06-15)
Coherent intramolecular multiple scattering by free molecules has been investigated extensively in the literature. Scant attention has been paid to incoherent intermolecular multiple scattering, however, a potentially ...
Electron diffraction investigation of pulsed supersonic jets
(The American Institute of Physics, 1989-07)
A pulsed nozzle source has been developed for electron diffraction studies of molecular clusters. Disturbances of the electron beam by the field actuating the pulser have been reduced to a negligible magnitude by introducing ...
Nuclear spin relaxation in paramagnetic solutions. Effects of large zero‐field splitting in the electron spin Hamiltonian
(The American Institute of Physics, 1990-11-15)
Expressions are derived describing nuclear spin relaxation in paramagnetic salt solutions under conditions where the electron spin Hamiltonian is dominated by a uniaxial quadratic zero‐field splitting (zfs) interaction. ...
Two‐point characteristic function for the Kepler–Coulomb problem
(The American Institute of Physics, 1975-10)
Hamilton’s two‐point characteristic function S (q2t2,q1t1) designates the extremum value of the action integral between two space–time points. It is thus a solution of the Hamilton–Jacobi equation in two sets of variables ...
Rotational analysis of the red electronic emission system A3[Phi] --> X3[Delta] of diatomic niobium nitride (NbN)
(Elsevier, 1988-08)
The (0,0) band of the red emission system of the diatomic molecule niobium nitride (NbN) has been rotationally analyzed and found to arise from an A3[Phi]r-X3[Delta]r transition. Constants for the two states have been ...
Carbonyl mediated conductance through metal bound peptides: a computational study
(IOP Publishing Ltd, 2007-10-24)
Large increases in the conductance of peptides upon binding to metal ions have recently been reported experimentally. The mechanism of the conductance switching is examined computationally. It is suggested that oxidation ...
Electron diffraction studies of supersonic jets. VI. Microdrops of benzene
(The American Institute of Physics, 1984-02-15)
Large clusters of benzene were generated in supersonic flow through a Laval nozzle with carrier gases He, Ne, or Ar. Benzene concentration and carrier pressures were varied over wide ranges. Diffraction patterns recorded ...
Nonrelativistic Coulomb Green’s function in parabolic coordinates
(The American Institute of Physics, 1981-02)
The nonrelativistic Coulomb Green’s function G(+)(r1,r2,k) is evaluated by explicit summation over discrete and continuum eigenstates in parabolic coordinates. This completes the derivation of Meixner, who was able to ...