Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Helge Johansen"'
Autor:
B. Roos, Helge Johansen
Publikováno v:
International Journal of Quantum Chemistry. 8:137-143
Ab initio MO-SCF-LCAO calculations have been carried out for the high- and low-spin configurations of the Ni(CH3)2 complex. The nickel-to-carbon bond length, the bond angle at the nickel atom, and the bond strength have been investigated, and it has
Autor:
Kiyoshi Tanaka, Helge Johansen
Publikováno v:
International Journal of Quantum Chemistry. 64:453-458
Autor:
Muhammed Nour Homsi, Elmar Weinhold, Monika Haugg, Helge Johansen, Nathalie Trabesinger-Rüf, Ryszard Gawinecki, Frank K. H. Kuske, Herta Effenberger, Carsten Christophersen, Günter Häfelinger, Joan Nielsen
Publikováno v:
Acta Chemica Scandinavica. 50:967-972
Autor:
Torben Frøberg, Helge Johansen, Joan Nielsen, Carsten Christophersen, Ryszard Gawinecki, Günter Häfelinger, Muhammed Nour Homsi, Frank K. H. Kuske, Monika Haugg, Nathalie Trabesinger-Rüf, Elmar G. Weinhold
Publikováno v:
Acta Chemica Scandinavica. 50:961-966
Autor:
Nikos K. Karamanos, George W. Francis, Giovanni Sindona, Anna Napoli, Dagfinn W. Aksnes, Terje Østvold, George Stavropoulos, Atle Aaberg, Sverre Rolseth, George Karigiannis, Helge Johansen
Publikováno v:
Acta Chemica Scandinavica. 49:79-84
Autor:
Helge Johansen, Philip Coppens, Jaume Casabó, Inger Søtofte, Erwan Le Clouerec, Ole Buchardt, Kurt Nielsen
Publikováno v:
Acta Chemica Scandinavica. 47:943-949
Autor:
Helge Johansen, Kim Mandix
Publikováno v:
The Journal of Physical Chemistry. 96:7261-7265
Ab initio Hartree-Fock multiconfigurational self-consistent-field and configuration-interaction calculations have been performed for the hexaaqua and hexacyanide complexes of Fe(II) and Fe(III). The electron density and the bonding is analyzed using
Publikováno v:
Chemical Physics Letters. 193:231-235
The spin-density distribution of the ground state of CrF 3− 6 in K 2 NaCrF 6 has been investigated, using the size-extensive averaged coupled pair functional method in a Gaussian basis set of atomic natural orbitals. Calculations correlating up to
Publikováno v:
Acta oncologica (Stockholm, Sweden). 47(4)
From November 1951 to December 1957, 666 consecutive patients with untreated primary breast cancer admitted to the Radium Center in Copenhagen were randomised before their operability was evaluated into two groups, simple mastectomy with postoperativ
Publikováno v:
Chemical Physics. 24:355-366
Ab initio calculations have been performed in order to investigate the ground state potential energy surface of the gas phase reaction NC + NO ⇌ NCNO. Both restricted (RHF) and unrestricted (UHF) Hartree-Pock approximations and direct configuration