SEARCH Articles Figures Tables Jacobi vectors for a three-nuclei, four-electron system. The nuclei are Pi, P2, P3, and the electrons are ei, 02, 63, 64, [Publishers Imprint] See Also: Jacobi vectors for a three-nuclei, four-electron system. The nuclei are Pi, P2, P3, and the electrons are ei, 02, 63, 64,