Treatment of nonlinear optical properties due to large amplitude anharmonic vibrational motions: umbrella motion in NH3

A general reduced dimensionality finite field nuclear relaxation method for calculating vibrational nonlinear optical properties of molecules with large contributions due to anharmonic motions is introduced. In an initial application to the umbrella (inversion) motion of NH3 it is found that difficu...

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Detalles Bibliográficos
Autores: Luis Luis, Josep Maria, Reis, Heribert, Papadopoulos, Manthos G., Kirtman, Bernard
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/3243
Acceso en línea:http://hdl.handle.net/10256/3243
Access Level:acceso abierto
Palabra clave:Amoníac
Dinàmica molecular
Molècules
Òptica no lineal
Ammonia
Molecules
Molecular dynamics
Nonlinear optics
Descripción
Sumario:A general reduced dimensionality finite field nuclear relaxation method for calculating vibrational nonlinear optical properties of molecules with large contributions due to anharmonic motions is introduced. In an initial application to the umbrella (inversion) motion of NH3 it is found that difficulties associated with a conventional single well treatment are overcome and that the particular definition of the inversion coordinate is not important. Future applications are described