Search Results: MCSCF


Multi-configurational self-consistent field
Jumat, 2025-11-21 20:17:07

Multi-configurational self-consistent field (MCSCF) is a method in quantum chemistry used to generate qualitatively correct reference states of molecules...

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Newton-X
Senin, 2025-12-08 13:05:38

Newton-X, it is used with a number of quantum-chemical methods, including MCSCF (Multiconfigurational Self-Consistent Field), MRCI (Multi-Reference Configuration...

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Dalton (program)
Selasa, 2023-07-18 05:09:21

of calculating various molecular properties using the Hartree–Fock, MP2, MCSCF and coupled cluster theories. Version 2.0 of DALTON added support for density...

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Configuration interaction
Kamis, 2025-06-05 20:36:25

ground state one should use the multi-configurational self-consistent field (MCSCF) method because the Hartree–Fock determinant is qualitatively wrong and...

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PySCF
Jumat, 2025-12-19 01:21:13

various functions to do the Hartree–Fock, MP2, density functional theory, MCSCF, coupled cluster theory at non-relativistic level and 4-component relativistic...

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MOLCAS
Jumat, 2025-11-14 05:53:09

Complete Active Space (CASSCF) level, but also employing more restricted MCSCF wave functions (RASSCF). It is also possible, at this level of theory, to...

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List of quantum chemistry and solid-state physics software
Selasa, 2026-05-05 22:07:13

simulating within lower periodicity. 2 QuanPol is a full spectrum (HF, MCSCF, GVB, MP2, DFT, TDDFT, CHARMM, AMBER, OPLSAA) QM/MM package integrated in...

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Complete active space perturbation theory
Senin, 2025-11-03 08:48:36

conjunction with the multi-configurational self-consistent field method (MCSCF) to avoid near-degeneracy correlation effects. In the early 1960s, the perturbation...

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Fragment molecular orbital
Selasa, 2026-05-05 10:28:21

Density functional theory (DFT), Multi-configurational self-consistent field (MCSCF), time-dependent DFT (TDDFT), configuration interaction (CI), second order...

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Complete active space
Jumat, 2025-09-12 03:12:32

as CASPT2 and NEVPT. CASSCF Multi-configurational self-consistent field (MCSCF) Battaglia, Stefano; Rossmannek, Max; Rybkin, Vladimir V.; Tavernelli, Ivano;...

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GAMESS (US)
Kamis, 2025-12-11 16:42:48

generalized valence bond (GVB), and multi-configurational self-consistent field (MCSCF). Correlation corrections after these SCF calculations can be estimated...

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Columbus (software)
Senin, 2026-01-19 12:42:05

Unitary Group Approach (GUGA). Analytic gradients for MCSCF, MR-CISD, MR-ACPF and MR-AQCC Analytic MCSCF and MR-CISD nonadiabatic coupling vectors Support...

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Vibronic coupling
Minggu, 2026-02-22 05:09:50

Details about this method can be found in ref. For the implementation for SA-MCSCF and MRCI in COLUMBUS, please see ref. The computational cost of evaluating...

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Mixed quantum-classical dynamics
Minggu, 2026-02-08 16:41:23

analytical PES FSSH, FSTU, FSTU/SD, CSDM, MFE, army ant tunnelling Cobramm MCSCF, MRCI/OMx, QM/MM FSSH DFTBaby TD-(LC)-DFTB FSSH Jade LR-TDDFT, CIS, ADC(2)...

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Slater determinant
Senin, 2026-03-02 22:19:27

theory. In more accurate theories (such as configuration interaction and MCSCF), a linear combination of Slater determinants is needed. The word "detor"...

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Electronic correlation
Senin, 2026-04-27 16:03:18

is qualitatively wrong. The multi-configurational self-consistent field (MCSCF) method takes account of this static correlation, but not dynamical correlation...

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Møller–Plesset perturbation theory
Selasa, 2025-11-18 13:48:11

determinant wave function. Multi-configurational self-consistent field (MCSCF) methods use several determinants and can be used for the unperturbed operator...

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Ab initio quantum chemistry methods
Senin, 2026-05-25 05:59:17

Multi-configurational self-consistent field – Method in quantum chemistry (MCSCF including CASSCF and RASSCF) Multi-reference configuration interaction (MRCI)...

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MOLPRO
Senin, 2026-05-11 20:14:20

configuration interaction (CI) codes. This resulted in the quadratically convergent MCSCF/CASSCF code called MULTI, which allowed modals to be optimized a weighted...

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Post–Hartree–Fock
Minggu, 2026-05-03 08:52:03

correlation. These methods include: Multi-configurational self-consistent field (MCSCF) Multireference single and double configuration interaction (MRCISD) N-electron...

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Silacyclobutane
Senin, 2026-04-20 10:23:18

5°, respectively utilizing multi-configurational self-consistent field (MCSCF) and gas electron diffraction. Like cyclobutane, the small heterocyclic...

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NWChem
Rabu, 2025-12-24 20:49:53

identity approximation (RI-MP2), multiconfigurational self-consistent-field (MCSCF) theory, selected configuration interaction (CI), Møller–Plesset perturbation...

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Poul Jørgensen (chemist)
Minggu, 2026-03-08 12:18:08

diverse and include work on: multi-configurational self-consistent field (MCSCF) methods Lagrangian techniques for molecular property calculations and analytic...

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Diradicaloid
Kamis, 2026-04-23 06:41:17

the planar four-membered ring form, rather than as the bicyclic isomer. MCSCF calculations predicted a singlet ground state. In addition, the calculated...

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