Sonia Coriani^a, Christof Hättig^a, Poul Jørgensen^a, Asger Halkier^a, Antonio Rizzo^b
a Department of Chemistry, Århus University, DK-8000 Århus C, Denmark
^b Istituto di Chimica Quantistica ed Energetica Moleculare del Consiglio Nazionale delle Ricerche, I-56126 Pisa, Italy

Chem. Phys. Lett. 281, 445-451 (1998).
Received 16 October 1997

We present the results of calculations of the Verdet constants for H₂, N₂, C₂H₂, and CH₄, within a recently implemented quadratic response function approach, for the hierachy of coupled cluster models CCS, CC2, and CCSD. For hydrogen, our FCI results are compared with experiment and with previous calculations of ``benchmark'' quality. The results for nitrogen and acetylene are compared with experiment and former theoretical investigations. For methane, this is the first ab initio study of the Verdet constant.

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Sonia Coriani^a, Christof Hättig^a, Poul Jørgensen^a, Asger Halkier^a, Antonio Rizzo^b
a Department of Chemistry, Århus University, DK-8000 Århus C, Denmark
^b Istituto di Chimica Quantistica ed Energetica Moleculare del Consiglio Nazionale delle Ricerche, I-56126 Pisa, Italy

Chem. Phys. Lett. 293, 324 (1998).

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