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Carter EA, Goddard WA. Correlation‐consistent configuration interaction: Accurate bond dissociation energies from simple wave functions. J Chem Phys 1988. [DOI: 10.1063/1.453957] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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152
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Guo Y, Langlois JM, Goddard WA. Electronic Structure and Valence-Bond Band Structure of Cuprate Superconducting Materials. Science 1988; 239:896-9. [PMID: 17759035 DOI: 10.1126/science.239.4842.896] [Citation(s) in RCA: 277] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
From ab initio calculations on various clusters representing the La2-xSrxCu(1)O(4) and Y(1)Ba(2)Cu(3)O(7) classes of high-temperature superconductors, it is shown that (i) all copper sites have a Cu(II)(d(9))oxidation state with one unpaired spin that is coupled antiferromagnetically to the spins of adjacent Cu(II) sites; (ii) oxidation beyond the cupric (Cu(II)) state leads not to Cu(III) but rather to oxidized oxygen atoms, with an oxygen ppi hole bridging two Cu(II) sites; (iii) the oxygen ppihole at these oxidized sites is ferromagnetically coupled to the adjacent Cu(II)d electrons despite the fact that this is opposed by the direct dd exchange; and (iv) the hopping of these oxygen ppi holes (in CuO sheets or chains) from site to site is responsible for the conductivity in these systems (N-electron band structures are reported for the migration of these localized charges).
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153
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Carter EA, Goddard WA. Correlation‐consistent singlet–triplet gaps in substituted carbenes. J Chem Phys 1988. [DOI: 10.1063/1.454099] [Citation(s) in RCA: 129] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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154
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Analytical energy third derivatives for two-configuration self-consistent-field wavefunctions. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0166-1280(88)80402-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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155
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McAdon MH, Goddard WA. Charge density waves, spin density waves, and Peierls distortions in one‐dimensional metals. I. Hartree–Fock studies of Cu, Ag, Au, Li, and Na. J Chem Phys 1988. [DOI: 10.1063/1.454654] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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156
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Garrison BJ, Goddard WA. Dissociation energetics of SiF systems of relevance to etching reactions. J Chem Phys 1987. [DOI: 10.1063/1.453706] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kirtman B, DeMelo CP. Local space approximation for treatment of impurities in polymers. Solitons in polyacetylene. J Chem Phys 1987. [DOI: 10.1063/1.452202] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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161
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Carter EA, Goddard WA. Electron correlation, basis sets, and the methylene singlet–triplet gap. J Chem Phys 1987. [DOI: 10.1063/1.452287] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Messmer RP, Schultz PA. New theoretical description of the carbon-carbon triple bond. PHYSICAL REVIEW LETTERS 1986; 57:2653-2656. [PMID: 10033826 DOI: 10.1103/physrevlett.57.2653] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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165
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Kleier DA, Weeks GH. Electronic structure and conformational analysis of paraquat in three oxidation states. ACTA ACUST UNITED AC 1986. [DOI: 10.1016/0166-1280(86)85002-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Amaya-Tapia A, Cisneros C, Russek A. Autodetaching states of H2 - and charge-transfer processes in H- on H collisions. PHYSICAL REVIEW. A, GENERAL PHYSICS 1986; 34:2591-2599. [PMID: 9897572 DOI: 10.1103/physreva.34.2591] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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167
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Illas F, Merchan M, Pelissier M, Marlieuu̧ JP. Inexpensive determinations of valence virtual MOs for CI calculations. Chem Phys 1986. [DOI: 10.1016/0301-0104(86)85014-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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168
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Schultz PA, Messmer RP. Valence-bond theory of off-center impurities in silicon: Substitutional nitrogen. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 34:2532-2553. [PMID: 9939948 DOI: 10.1103/physrevb.34.2532] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Yamaguchi Y, Frisch MJ, Lee TJ, Schaefer HF, Binkley JS. Analytic evaluation of infrared intensities and polarizabilities by two-configuration self-consistent field wave functions. ACTA ACUST UNITED AC 1986. [DOI: 10.1007/bf00527708] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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173
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Freund H, Messmer RP, Spiess W, Behner H, Wedler G, Kao CM. Interpretation of electronic excitations in coordinated CO systems as observed by electron-energy-loss spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 33:5228-5240. [PMID: 9939020 DOI: 10.1103/physrevb.33.5228] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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174
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Haddon R. GVB and POAV analysis of rehybridization and π-orbital misalignment in non-planar conjugated systems. Chem Phys Lett 1986. [DOI: 10.1016/0009-2614(86)87055-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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175
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Dupuis M, Fitzgerald G, Hammond B, Lester WA, Schaefer HF. Theoretical study of the H+O3↔OH+O2↔O+HO2 system. J Chem Phys 1986. [DOI: 10.1063/1.450342] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hay PJ, Martin RL. All‐electron and valence‐electron calculations on AgH, Ag2, and AgO. J Chem Phys 1985. [DOI: 10.1063/1.449729] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Maclagan RGAR, Kirtman B. Factors determining bond angles from a classical valence bond perspective. Covalent structure of H2O. Theor Chem Acc 1985. [DOI: 10.1007/bf00529060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kao CM, Messmer RP. Ab initio cluster-model study of the electronic ground-state and photoemission properties of NiN2 and NiCO: Models for chemisorption. PHYSICAL REVIEW. B, CONDENSED MATTER 1985; 31:4835-4847. [PMID: 9936443 DOI: 10.1103/physrevb.31.4835] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Wadt WR, Hay PJ. Ab initio effective core potentials for molecular calculations. Potentials for main group elements Na to Bi. J Chem Phys 1985. [DOI: 10.1063/1.448800] [Citation(s) in RCA: 8398] [Impact Index Per Article: 215.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Brown FB, Steckler R, Schwenke DW, Truhlar DG, Garrett BC. An improved potential energy surface for F+H2→HF+H and H+H′F→HF+H′. J Chem Phys 1985. [DOI: 10.1063/1.448781] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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182
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Kao C, Messmer R. The origins of correlation effects in the valence ionization energies of N2: A generalized-valence-bond interpretation. Chem Phys Lett 1984. [DOI: 10.1016/0009-2614(84)80222-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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183
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Engelke R, Hay PJ, Kleier DA, Wadt WR. A theoretical study of possible benzene dimerizations under high‐pressure conditions. J Chem Phys 1983. [DOI: 10.1063/1.446319] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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184
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Kirtman B. Density matrix treatment of localized electronic interactions. Separated electron pairs. J Chem Phys 1983. [DOI: 10.1063/1.445859] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ro/eggen I. Electron correlation described by an extended group function model: The EXGF1 model. J Chem Phys 1983. [DOI: 10.1063/1.445055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ruedenberg K, Schmidt MW, Gilbert MM, Elbert S. Are atoms intrinsic to molecular electronic wavefunctions? III. Analysis of FORS configurations. Chem Phys 1982. [DOI: 10.1016/0301-0104(82)87006-7] [Citation(s) in RCA: 119] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Botch BH, Dunning TH. Theoretical characterization of negative ions. Calculation of the electron affinities of carbon, oxygen, and fluorine. J Chem Phys 1982. [DOI: 10.1063/1.442959] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Jackels CF. A theoretical potential energy surface study of several states of the methoxy radical. J Chem Phys 1982. [DOI: 10.1063/1.442752] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Botch BH, Dunning TH, Harrison JF. Valence correlation in the s2dn, sdn+1, and dn+2 states of the first‐row transition metal atoms. J Chem Phys 1981. [DOI: 10.1063/1.442456] [Citation(s) in RCA: 106] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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197
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Kuwajima S. A new self‐consistent‐field valence bond method. I. Method for conjugated systems. J Chem Phys 1981. [DOI: 10.1063/1.441025] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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198
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Lengsfield BH, Phillips DH, Schug JC. Half‐projected Hartree–Fock calculations on several small molecules. J Chem Phys 1981. [DOI: 10.1063/1.441727] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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199
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Laidig WD, Schaefer HF. Large multiconfiguration self‐consistent‐field wave functions for the ozone molecule. J Chem Phys 1981. [DOI: 10.1063/1.441494] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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200
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Brooks BR, Laidig WD, Saxe P, Schaefer HF. A multiconfiguration self‐consistent‐field formalism utilizing the two‐particle density matrix and the unitary group approach. J Chem Phys 1980. [DOI: 10.1063/1.439599] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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