Publikationen von Kantharuban Sivalingam

Dittmer, A.; Leyser da Costa Gouveia, T.; Sivalingam, K.; DeBeer, S.; Neese, F.; Maganas, D. Revisiting the band gap problem in bulk Co₃O₄ and its isostructural Zn and Al derivatives through the lens of theoretical spectroscopy. Physical Chemistry Chemical Physics 2025, 27, 17225–17244.

Kempfer, E. M.; Sivalingam, K.; Neese, F. Efficient Implementation of Approximate Fourth Order N-Electron Valence State Perturbation Theory. Journal of Chemical Theory and Computation 2025, 21, 3953–3967.

Guo, Y.; Sivalingam, K.; Chilkuri, V. G.; Neese, F. Approximations of density matrices in N-electron valence state second-order perturbation theory (NEVPT2). III. Large active space calculations with selected configuration interaction reference. The Journal of Chemical Physics 2025, 162, 144110.

Rao, S. V.; Maganas, D.; Sivalingam, K.; Atanasov, M.; Neese, F. Extended Active Space Ab Initio Ligand Field Theory: Applications to Transition-Metal Ions. Inorganic Chemistry 2024, 63, 24672–24684.

Lechner, M. H.; Papadopoulos, A.; Sivalingam, K.; Auer, A. A.; Koslowski, A.; Becker, U.; Wennmohs, F.; Neese, F. Code generation in ORCA: progress, efficiency and tight integration. Physical Chemistry Chemical Physics 2024, 26, 15205–15220.

Guo, Y.; Pavošević, F.; Sivalingam, K.; Becker, U.; Valeev, E. F.; Neese, F. SparseMaps—A systematic infrastructure for reduced-scaling electronic structure methods. VI. Linear-scaling explicitly correlated N-electron valence state perturbation theory with pair natural orbital. The Journal of Chemical Physics 2023, 158, 124120.

Kollmar, C.; Sivalingam, K.; Guo, Y.; Neese, F. An efficient implementation of the NEVPT2 and CASPT2 methods avoiding higher-order density matrices. The Journal of Chemical Physics 2021, 155, 234104.

Guo, Y.; Sivalingam, K.; Kollmar, C.; Neese, F. Approximations of density matrices in N-electron valence state second-order perturbation theory (NEVPT2). II. The full rank NEVPT2 (FR-NEVPT2) formulation. The Journal of Chemical Physics 2021, 154, 214113.

Guo, Y.; Sivalingam, K.; Neese, F. Approximations of density matrices in N-electron valence state second-order perturbation theory (NEVPT2). I. Revisiting the NEVPT2 construction. The Journal of Chemical Physics 2021, 154, 214111.

Kollmar, C.; Sivalingam, K.; Neese, F. An alternative choice of the zeroth-order Hamiltonian in CASPT2 theory. The Journal of Chemical Physics 2020, 152, 214110.

Lang, L.; Sivalingam, K.; Neese, F. The combination of multipartitioning of the Hamiltonian with canonical Van Vleck perturbation theory leads to a Hermitian variant of quasidegenerate N-electron valence perturbation theory. The Journal of Chemical Physics 2020, 152, 014109.

Kollmar, C.; Sivalingam, K.; Helmich-Paris, B.; Angeli, C.; Neese, F. A perturbation-based super-CI approach for the orbital optimization of a CASSCF wave function. Journal of Computational Chemistry 2019, 40, 1463–1470.