Results 261 to 270 of about 697,855 (291)

Dipole-Dipole Interaction Driven Self-Assembly of Merocyanine Dyes: From Dimers to Nanoscale Objects and Supramolecular Materials.

Accounts of Chemical Research, 2016
π-Conjugation between heterocyclic donor (D) and acceptor (A) groups via a polymethine chain leads to dyes with dipole moments greater than 10 D. These dipole moments direct the self-assembly of the dyes into antiparallel dimer aggregates, even in dilute
F. Würthner
semanticscholar   +1 more source

DIPOLE-DIPOLE INTERACTION IN A SUPERCONDUCTOR

Modern Physics Letters B, 1994
Based on the London theory and the Pippard theory of superconductivity, we have calculated the magnetic induction distribution from a magnetic dipole located in a superconductor. The results have been used to evaluate the interaction energy between two magnetic dipoles located in the superconductor. The relevant applications of these calculations have
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A demonstration of dipole-dipole interactions

Journal of Chemical Education, 1983
An easily assembled overhead projection demonstration of dipole-dipole interactions can be made by using strips of flexible magnetic tape.
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Noncovalently bound complexes of polar molecules: dipole-inside-of-dipole vs. dipole–dipole systems

New Journal of Chemistry, 2017
Complexes of polar molecules framed by counter-ions exhibit significant stabilities, huge dipole moments, prominent IR-spectral signatures and feasible anion-mediated formation.
S. Kerr, F. Y. Naumkin
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Dipole–Dipole Interactions in Tungstates

The Journal of Chemical Physics, 1968
The vibrational spectra of divalent metal tungstates of the form MWO4, where M = Ba, Sr, Ca, or Zn, have been analyzed in terms of dipole–dipole interactions between adjacent tungstate ions. The van der Waals potential constants determined are of the order of (13 − 110) × 10−60 erg·cm6 and approximate those for alkali halides.
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The dipole-dipole potential in statistical mechanics

Molecular Physics, 1975
We study the interaction energy of a system of N particles with embedded point dipoles in a cube, this cube being duplicated indefinitely throughout space. We are able to evaluate exactly this energy for arbitrary positions and orientations of the N particles, to provide an effective hamiltonian suitable for the study of the statistical mechanics of ...
J.W. Perram, E.R. Smith
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Demonstration of magnetic dipole resonances of dielectric nanospheres in the visible region.

Nano letters (Print), 2012
Strong resonant light scattering by individual spherical Si nanoparticles is experimentally demonstrated, revealing pronounced resonances associated with the excitation of magnetic and electric modes in these nanoparticles.
A. Evlyukhin, S. Novikov, U. Zywietz, R. Eriksen, C. Reinhardt, S. Bozhevolnyi, B. Chichkov   +6 more
semanticscholar   +1 more source

Systematic AB Initio Gradient Calculation of Molecular Geometries, Force Constants, and Dipole Moment Derivatives

, 1979
Systematic ab initio gradient calculation of molecular geometries, force constants, and dipole moment derivatives is described. A new basis set, denoted 4-21, is presented for first-row atoms.
P. Pulay, G. Fogarasi, F. Pang, J. E. Boggs   +3 more
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Teaching ion-ion, ion-dipole, and dipole-dipole interactions

Journal of Chemical Education, 1977
Shows how electrostatic interactions can be expressed quantitatively through Coulomb's law and taught at a variety of places in the chemistry curriculum.
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Hyperpolarizabilities of the nitroanilines and their relations to the excited state dipole moment

, 1977
We have measured the second and third order hyperpolarizabilities of the three nitroaniline isomers and of two related molecules. For some isomers the intramolecular charge transfer is found to cause a very large enhancement of the second order ...
J. Oudar, D. Chemla
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