Arbeider i CRIStin


  • Røeggen, Inge Arvid; Gao, Bin. Combination of large and small basis sets in electronic structure calculations on large systems. Journal of Chemical Physics 2018; Volum 148 (13). ISSN 0021-9606.s doi: 10.1063/1.5018148.

  • Røeggen, Inge Arvid; Gao, Bin. Perturbed atoms in molecules and solids: The PATMOS model. Journal of Chemical Physics 2013; Volum 139 (9). ISSN 0021-9606.s doi: 10.1063/1.4818577.

  • Røeggen, Inge; Johansen, Tor. Cholesky decomposition of the two-electron integral matrix in electronic structure calculations. Journal of Chemical Physics 2008; Volum 128. ISSN 0021-9606.s doi: 10.1063/1.2925269.

  • Røeggen, Inge. Analytic functions for the three-body potential of the helium trimer. Journal of Chemical Physics 2007; Volum 126. ISSN 0021-9606.s doi: 10.1063/1.2737777.

  • Røeggen, Inge. An extended group function model for intermolecular interactions. Theoretical Chemistry accounts 2006; Volum 116. ISSN 1432-881X.s 683 - 690.

  • Røeggen, Inge. An ab initio study of the fcc and hcp structures of helium. Journal of Chemical Physics 2006; Volum 124. ISSN 0021-9606.

  • Roeggen, I; Røeggen, Inge; Veseth, Leif. Interatomic potential for the Chi(1)Sigma(+)(g) state of Be-2, revisited. International Journal of Quantum Chemistry 2005; Volum 101. ISSN 0020-7608.

  • Røeggen, Inge. The Li+-H2 system in a rigid-rotor approximation: potential energy surface and transport coefficients. Journal of Physics B: Atomic, Molecular and Optical Physics 2002 (35). ISSN 0953-4075.s 1707 - 1725.

  • Røeggen, Inge; Skullerud, H. R.; Løvaas, T. H.; Dysthe, D. K.. The Li+ - H2 system in a rigid rotor approximation: potential energy Surface and transport coefficients. Journal of Physics B: Atomic, Molecular and Optical Physics 2002; Volum 35 (1707). ISSN 0953-4075.

  • Røeggen, Inge. Extended geminal models. Springer 1999.

  • Elford, M. T.; Røeggen, Inge; Skullerud, H. R.. Interaction potential and transport coefficients for Li+ ions in helium. Journal of Physics B: Atomic, Molecular and Optical Physics 1999; Volum 32 (1873). ISSN 0953-4075.

  • Ahmadi, G. R.; Røeggen, Inge. Measurements of plasma potential and electron temperature fluctuations in a low-temperature magnetized plasma. Theoretical Chemistry accounts 1997; Volum 97 (41). ISSN 1432-881X.

  • Ahmadi, G. R.; Røeggen, Inge. A minimal distortion localization of occupied orbitals in supermolecule Calculations of intermolecular interactions. Theoretical Chemistry accounts 1997; Volum 97 (41). ISSN 1432-881X.

  • Røeggen, Inge; Almlöf, J.. An extended geminal calculation of the three-body potential for the ground state of the helium trimer. Journal of Molecular Structure: THEOCHEM 1996; Volum 388 (331). ISSN 0166-1280.

  • Wind, P.; Røeggen, Inge. Ab initio calculation of the three-body interaction in the (H2)3 trimer. Chemical Physics 1996; Volum 211 (179). ISSN 0301-0104.

  • Røeggen, Inge; Wind, P.. Electron correlation, extended geminal models, and intermolecular Interactions: Theory. Journal of Chemical Physics 1996; Volum 105 (2751). ISSN 0021-9606.

  • Dahl, T.; Røeggen, Inge. An Analysis of Electron Donor-Acceptor Complexes: H2OF2, H2OCl2, and H2OClF. Journal of the American Chemical Society 1996; Volum 118 (4152). ISSN 0002-7863.

  • Røeggen, Inge; Almlöf, J.. Interatomic Potential for the X 1+ State of Be2. International Journal of Quantum Chemistry 1996; Volum 60 (453). ISSN 0020-7608.

  • Wind, P.; Røeggen, Inge. Energy expansion in the extended geminal model. Chemical Physics 1996; Volum 206 (307). ISSN 0301-0104.

  • Ahmadi, G. R.; Almlöf, J.; Røeggen, Inge. The interatomic potential for the X 1 state of ArNa+, NeNa+, HeNa+. Chemical Physics 1995; Volum 199 (33). ISSN 0301-0104.

  • Røeggen, Inge; Almlöf, J. An accurate calculation of the three-body potential for the ground state of the helium trimer. Journal of Chemical Physics 1995; Volum 102 (7095). ISSN 0021-9606.

  • Røeggen, Inge; Almlöf, J.; Ahmadi, G. R.; Wind, P. A.. An accurate computational model for the study of intermolecular interactions. Journal of Chemical Physics 1995; Volum 102 (7088). ISSN 0021-9606.

  • Ahmadi, G. R.; Røeggen, Inge. The interatomic potential for the X 1 state of ArLi+. Journal of Physics B: Atomic, Molecular and Optical Physics 1994; Volum 27 (5603). ISSN 0953-4075.

  • Røeggen, Inge; Ahmadi, G. R.. A quantchem chemical study of the F- and H-bonded isomers of HF/ClF. Journal of Molecular Structure: THEOCHEM 1994; Volum 307 (9). ISSN 0166-1280.

  • Røeggen, Inge; Ahmadi, G. R.; Wind, P. A.. Intermolecular potentials calculated by an extended group function model: Theory. Journal of Chemical Physics 1993; Volum 99 (277). ISSN 0021-9606.

  • Wind, P.; Røeggen, Inge. A theoretical study of the (H2)2 dimer. Ill. The isotropic potential. Chemical Physics 1993; Volum 174 (345). ISSN 0301-0104.

  • Wind, P.; Røeggen, Inge. A theoretical study of the H2 dimer: II. The potential energy surface. Chemical Physics 1992; Volum 167 (263). ISSN 0301-0104.

  • Røeggen, Inge; Wind, P.. A theoretical study of the H2 dimer: I.Bonding. Chemical Physics 1992; Volum 167 (247). ISSN 0301-0104.

  • Skullerud, H.; Røeggen, Inge; Løvaas, T. H.. Mobility and diffusion of lithium in neon. Journal of Physics B: Atomic, Molecular and Optical Physics 1992; Volum 25 (1811). ISSN 0953-4075.

  • Røeggen, Inge; Skullerud, H.. The interatomic potential for the X 1 state of NeLi+. Journal of Physics B: Atomic, Molecular and Optical Physics 1992; Volum 25 (1795). ISSN 0953-4075.

  • Røeggen, Inge. An energy decomposition analysis of intermolecular interactions. Journal of Mathematical Chemistry 1992; Volum 10 (205). ISSN 0259-9791.

  • Røeggen, Inge. Analysis of Electron Donor-Acceptor Complexes: BH3CO, BH3HN3. Chemical Physics 1992; Volum 162 (271). ISSN 0301-0104.

  • Røeggen, Inge; Dahl, T.. An analysis of Weakly bonded EDA Complexes: F2NH3, C12NH3, CIFNH3. Journal of the American Chemical Society 1992; Volum 114 (511). ISSN 0002-7863.

  • Røeggen, Inge. Atoms and Electron-pair Bonds in a Molecule: An Appproach within the Context of Extended Geminal Models. International Journal of Quantum Chemistry 1991; Volum 40 (149). ISSN 0020-7608.

  • Røeggen, Inge. Analysis of Hydrogen Bonded Systems: (H20)2, H20HF, (HF)2. Molecular Physics 1990; Volum 70 (353). ISSN 0026-8976.

  • Røeggen, Inge. Electron Correlation Described by Extended Geminal Models: The EXGEM7 and EXRHF3 Models. International Journal of Quantum Chemistry 1990; Volum 37 (585). ISSN 0020-7608.

  • Røeggen, Inge; Wisløff-Nilssen, E.. Prediction of a metastable D3h form of tetra oxygen. Chemical Physics Letters 1989; Volum 157 (409). ISSN 0009-2614.

  • Røeggen, Inge. Electron Correlation Described by Extended Geminal Models:. Journal of Chemical Physics 1988; Volum 89 (441). ISSN 0021-9606.

  • Røeggen, Inge; Morokuma, K.; Yamashita, K.. On the binding energy of the ground state of Be2. Chemical Physics Letters 1987; Volum 140 (349). ISSN 0009-2614.

  • Røeggen, Inge; Wisløff-Nilssen, E.. An energy fragment analysis of molecular properties: Theory. Chemical Physics Letters 1987; Volum 86 (2869). ISSN 0009-2614.

  • Røeggen, Inge. Electron Correlation Described by Extended Geminal Models: The EXGEM4 and EXGEM5 Models. International Journal of Quantum Chemistry 1987; Volum 31 (95). ISSN 0020-7608.

  • Røeggen, Inge; Wisløff-Nilssen, E.. The Beebe-Linderberg two-electron integral approximation. Chemical Physics Letters 1986; Volum 132 (154). ISSN 0009-2614.

  • Røeggen, Inge. On the weaknesses of the VSEPR model. Journal of Chemical Physics 1986; Volum 85 (969). ISSN 0021-9606.

  • Røeggen, Inge. Intermolecular potentials calculated by an extended geminal model: Theory. Journal of Chemical Physics 1986; Volum 85 (262). ISSN 0021-9606.

  • Røeggen, Inge. Derivation of an extended geminal model. Journal of Chemical Physics 1983; Volum 79 (5520). ISSN 0021-9606.

  • Røeggen, Inge. Electron correlation described by an extended group function model: The EXGF1 model. Journal of Chemical Physics 1983; Volum 78 (2485). ISSN 0021-9606.

  • Røeggen, Inge. An Extended Geminal Model Calculation of the Dissociation Energy of the Ground State of Li2. Chemical Physics Letters 1982; Volum 92 (398). ISSN 0009-2614.

  • Røeggen, Inge. Electron Correlation Described by Extended Geminal Models: The EXGEM2 and EXGEM3 Models. International Journal of Quantum Chemistry 1982; Volum 22 (149). ISSN 0020-7608.

  • Røeggen, Inge. Electron Correlation Described by an Extended Geminal Model. International Journal of Quantum Chemistry 1981; Volum 20 (817). ISSN 0020-7608.

  • Røeggen, Inge. Antisymmetric Product of Geminals in the Context of the method of Moments. International Journal of Quantum Chemistry 1981; Volum 19 (319). ISSN 0020-7608.

  • Røeggen, Inge; Aashamar, K.. Pair functions and biorthonormal orbitals in the context of the method of moments. I. Molecular Physics 1977; Volum 33 (453). ISSN 0026-8976.

  • Røeggen, Inge; Huggett, J. P.; Armour, E. A. G.. A Least-Squares Method Applied to the Hydrogen Molecule. Theoretica Chimica Acta 1975; Volum 39 (161). ISSN 0040-5744.

  • Røeggen, Inge. Application of a Least-Squares method in Configuration Interaction Calculations. Chemical Physics Letters 1975; Volum 31 (271). ISSN 0009-2614.

  • Røeggen, Inge. Resolvent technique and Fade Approximants in Configuration Interaction Calculations. International Journal of Quantum Chemistry 1975; Volum 9 (431). ISSN 0020-7608.

  • Røeggen, Inge. On the Quantization of Angular Momenta in Diatomic Molecules. Physica Norvegica 1974; Volum 2 (161). ISSN 0031-8930.

  • Røeggen, Inge. Applications of Fade Approximants of Type II in Partitioning Technique. International Journal of Quantum Chemistry 1973; Volum 7 (1193). ISSN 0020-7608.

  • Røeggen, Inge. Convergence Acceleration of matrix Hartree-Fock Calculationsby Pa de Approximants of Type II. Chemical Physics Letters 1973; Volum 22 (140). ISSN 0009-2614.

  • Røeggen, Inge. On least Squares Estimation of Non-Linear Parameters withParticular Emphasis on Matrix Evaluation. Physica Norvegica 1973; Volum 7 (33). ISSN 0031-8930.

  • Røeggen, Inge. On the Calculation of permanent Electric Dipole Moments and Polarizability Anisotropies from Stark Effect Data. Journal of Molecular Spectroscopy 1972; Volum 44 (470). ISSN 0022-2852.

  • Røeggen, Inge. Polynomial Approximations to the stark perturbed Rotational Energy levels of the Rigid Symmetry Top Rotor. Atomic Data 1972; Volum 4 (289).

  • Røeggen, Inge. The Inversion Eigenvalues of Non- States of Diatomic Molecules, Expressed in Terms of Quantum Numbers. Theoret. Chim. Acta (Berl) 1971; Volum 21 (398).

  • Røeggen, Inge. On the Determination of Small Electric Dipole Moments of Excited Electronic States in Diatomic Molecules. Journal of Molecular Spectroscopy 1971; Volum 39 (123). ISSN 0022-2852.

  • Røeggen, Inge. The Theory of the Stark effect in multiplet states of diatomic molecules. Journal of Physics B: Atomic, Molecular and Optical Physics 1971; Volum 4 (168). ISSN 0953-4075.

  • Røeggen, Inge. Anskuelighet og rom i mikrokosmos. Populærvitenskaplig forelesningsserie 2002-10-11 - 2004.

  • Røeggen, Inge. Pertubated atoms in molecules and solids. A Coastal voayage in Quantum Chemistry 2003-09-18 - 2003-09-21 2003.

  • Røeggen, Inge. Pertubed Atoms in Molecules and Solids: the PATMOS model. Fourth Congress of the International Society for Theoretical Chemical Physics 2002-07-09 - 2002-07-17 2002.

  • Røeggen, Inge. Perturbed atoms in molecules and solids: the PATMOS model. Fysikermøtet 2001-06-14 - 2001-06-17 2001.

  • Røeggen, Inge. Intermolecular Interactions Studied by an Extended Geminal Model. Second European Workshop on Quantum Systems in Chemistry and Physics 1997-04-05 - 1997-04-09 1997.