Preface List of Abbreviations I Introduction and Computational Methods A. General Considerations B. Basis Sets C. Self-Consistent Field (SCF) Methods D. Configuration Mixing (CM) E. Multiconfiguration Self-Consistent Field (MCSCF) Methods F. Selection Methods for CSFs and MOs G. Electron Pair Methods H. Many-Body Methods I. Pseudopotentials J. Equilibrium Geometries and Vibrational Properties References II Triatomic Molecules AH2 A. General Considerations B. Survey C. BeH2 and MgH2 D. BH2 and CH2+ E. CH2, SiH2, NH2+, and PH2+ F. CH2-, NH2, H2O+, SiH2-, and PH2 G. H2O, H2F+, H2S, NH2-, PH2-, and H2S- ReferencesIII Triatomic Molecules HAB and HA2 A. Survey B. LiCH, LiN+H, LiOH, LiOH-; HC2+, HCN+, HC2, and HC2-; HCSi, HSiC, HCSi+, HSiC+ C. HCN, HNC, HCO+, HOC+, HN2+, HBO, HCS+, HCP, HBS, etc. D. HCN-, HCO, HN2, HNO+, HON+, HBF E. HNO, HPO, HCF, HNF+, HO2+ F. HO2, HNF, and HOS G. HOF and HOCI H. HFCl+, HClF+, HF2, HF2-, HCl2-; AR2H, Ar2H+, He2H+, Li2H+, Be2H+, Li2H- ReferencesIV Triatomic Molecules AB2 and ABC A. Survey B. 3-Valence-Electron (VE) Molecules Li3 and Na3 and 4-VE Li2C and Li2N+ C. 8-VE Molecules ( Li2O, Li2S, and Na2S) D. 10- to 12-VE Molecules (LiNC, BCB, BCC, BNC, LiNO, NaNO, A12O, C3, Li+N2, Li+CO) E. 13- to 15-VE Molecules (CNC, LiO2, NCN, OCC, NCO+, N3+, CO2+, N2O+, N3, NCO, CSO+) F. 16-VE Molecules ( CO2, SiO2, SCO, NO2+, N2O, N2S, N3-, OCN-, SCN-, FCN, ClCN, BeF2, MgF2, CaF2, ZnF2); Also UO22+ G. 17-VE Molecules (CO2-, BF2, FCO, NO2, BeF2-, MGF2-) ¿. 18-VE Molecules ( ¿O2-, O3, SO2, CF2, CCl2, SiF2, NOCl, NSF, NF2+) I. 19- to 23-VE Molecules (NF2, PF2+, OF2, SF2, ClF2+, Cl2F+, ClF2, ClF2-, KrF2, XeF2, Ar2+F-, Kr2+F-); Also NiCO and TiO References V Reaction Surfaces A. General Considerations B. H3 C. HeH2 and He2H D. AH2 E. HA2 F. HAB G. ABC H. Four or More Atoms References VI Molecules with Trigonal Symmetry A. General Considerations B. Survey C. BH3, CH3+, BH3-, CH3, NH3+, H3O+, NH3, H3O, (CH3)3C D. AlH3, SiH3, PH3+, PH3, OPH3, SH3+ E. BF3, BCl3, BF3-, AlCl3, SO3, NO3-, NF3, NCl3, PF3, H3NO, H3CO-, F3NO, F3CO-, OPF3, CFCl3, SPF3, PCl3, OPCl3, ScF3, TiF3, VF3, CrF3, MnF3, FeF3, CoF3, NiF3, PF5, PH5, VF5, VF5-, MnCl5-2, CuCl5-3, UF5) LiBH4, NaBH4, LiAlH4, NaAlH4, ¿3¿3¿6, B3O3H3 F. ACH3 [LiCH3, H3CBeF, H3CMgF, NCH3, OCH3, OCH3-,CH3X, NiCH3, Ni(CH3)2], Acetylene Derivatives; CFCl3 G. Ethane (C2H6) and Silane (Si2H6) H. Molecular Compounds I. Trimethylenemethane [C(CH2)3] J. Cyclopropane [(CH2)3] K. Cyclopropenyl Cation (C3H3+) References VII Molecules of Tetrahedral and Octahedral Symmetry A. General Considerations B. Methane (CH4), Silane (SiH4), and CF4 C. Be4, Be4-, Mg4, P4, P4+, B4H4, B4F4, B4Cl4 D. ClO4-, SO42-, and PO43- E. MnO4-, MnO4, MnO42-, MnO43-, CrO42-, VO43-, MnCl42-, CoCl42-, CuCl42-, NiCl42-, MH4 (M = Ti ... Ni) F. SF6, SF6+, XeF6, UF6, Co(CN)6-, Cubane References VIII Aliphatic and Inorganic Molecules with Four or More Atoms: Linear, D2h, and D2d Molecules A. General Considerations B. Linear Molecules C. Molecules with D2h Symmetry D. Molecules with D2d Symmetry References IX Aliphatic and Inorganic Molecules with Four or More Atoms: Molecules with One or Two Symmetry Planes A. General Considerations B. Vinyl and Allyl Radicals and Ions; Vinylidene C. Some Three-Membered Ring Compounds D. Urea, Thiourea, and Formamide E. Other Nitrogen-Containing Compounds F. Aldehydes, Ketones, and Carboxy Molecules G. Conjugated Polyenes ¿. Miscellaneous Molecules ReferencesX Some Molecules of Low Symmetry A. Molecules with "Free Rotation" B. Hydrocarbon Molecules, Radicals, Ions, and Some Derivatives C.