Chemistry Abbreviations and Acronyms

1. PUHF
   (spin)-projected Unrestricted Hartree-fock
2. PWBA-C
   Coulomb Corrected Plane Wave Born Approxn.
3. PWBA-C-EX
   Coulomb Corrected Plane Wave Born Approxn. (with) Exchange
4. PWBE
   Plane-wave Born Approxn. With Exchange
5. PWG SCF
   Plane-wave Gaussian Self-consistent Field Method
6. QCFF/PI
   Quantum Mechanical Consistent Force Field Method for Pi-electron Systems
7. QCISD(T)
   Quadratic Ci (with) Single (and) Double (excitations) (and) [triple Excitations Added Perturbatively]
8. QCT-IEQMT
   Quasiclassical Trajectory-internal Energy Quantum Mechanical Threshold
9. QECISDTQ
   Quadratic Size-extensive Cisdtq
10. QLCPMET
    Quasilinearized Coupled-pair-many-electron Theory
11. QPEN
    Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei
12. QPLDA
    Quasiparticle Local-density Approxn.
13. QPMDA
    Quasiparticle Mean Density Approxn. (assocd. With Local-d. Theory)
14. QRHF-CC
    Quasirestricted Hartree-fock Coupled Cluster
15. QSSPC
    Quasi-steady-state Photoconductance
16. QUAL2E
    Enhanced Stream Water Quality Model
17. QXRD
    Quantitative X-ray Diffraction
18. R-CNDO/1X
    Relativistic Complete Neglect of Differential Overlap (method)
19. R-GVB
    Resonating-generalized Valence Bond (wave Function)
20. R2PI
    Resonant Two-photon Ionization

Last updated: August 16, 2021 — Total entries: 20,936