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Calculation of multicentre nuclear attraction integrals over Slater-type orbitals using unsymmetrical one-range addition theorems
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作者 Israfil I.Guseinov N.Seckin Gorgun Nimet Zaim 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第4期180-184,共5页
Using the unsymmetrical one-range addition theorems introduced by one of the authors with the help of complete orthonormal sets of $/varPsi ^/alpha $-exponential type orbitals ($/alpha = 1,0, - 1, - 2,...)$, this... Using the unsymmetrical one-range addition theorems introduced by one of the authors with the help of complete orthonormal sets of $/varPsi ^/alpha $-exponential type orbitals ($/alpha = 1,0, - 1, - 2,...)$, this paper presents the sets of series expansion relations for multicentre nuclear attraction integrals over Slater-type orbitals arising in Hartree--Fock--Roothaan equations for molecules. The final results are expressed through multicentre charge density expansion coefficients and basic integrals. The convergence of the series is tested by calculating concrete cases for arbitrary values of parameters of orbitals. 展开更多
关键词 Slater-type orbitals nuclear attraction integrals Hartree-Fock Roothaan equations unsymmetrical one-range addition theorems
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One-range addition theorems for generalized integer and noninteger μ Coulomb,and exponential type correlated interaction potentials with hyperbolic cosine in position,momentum,and four-dimensional spaces
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作者 I.I.Guseinov 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第6期137-140,共4页
The formulae are established in position,momentum,and four-dimensional spaces for the one-range addition theorems of generalized integer and noninteger μ Coulomb,and exponential type correlated interaction potentials... The formulae are established in position,momentum,and four-dimensional spaces for the one-range addition theorems of generalized integer and noninteger μ Coulomb,and exponential type correlated interaction potentials with hyperbolic cosine(GCTCP and GETCP HC).These formulae are expressed in terms of one-range addition theorems of complete orthonormal sets of Ψα-exponential type orbitals(Ψ α-ETO),α-momentum space orbitals(α-MSO),and zα-hyperspherical harmonics(zα-HSH) introduced.The one-range addition theorems obtained can be useful in the electronic structure calculations of atoms and molecules when the GCTCP and GETCP HC in position,momentum,and four-dimensional spaces are employed. 展开更多
关键词 correlated interaction potentials one-range additional theorems complete orthonormalsets of orbitals overlap integrals
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Unified treatment of one-range addition theorems for integer and non-integer n-STO, -GTO and -generalized exponential type orbitals with hyperbolic cosine in position, momentum and four-dimensional spaces
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作者 I. I. Guseinov 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第9期176-178,共3页
Simpler formulas are derived for one-range addition theorems for the integer and noninteger n generalized ex- ponential type orbitals, momentum space orbitals, and hyperspherical harmonics with hyperbolic cosine (GET... Simpler formulas are derived for one-range addition theorems for the integer and noninteger n generalized ex- ponential type orbitals, momentum space orbitals, and hyperspherical harmonics with hyperbolic cosine (GETO HC, GMSO HC, and GHSH HC) in position, momentum and four-dimensional spaces, respectively. The final results are expressed in terms of one-range addition theorems of complete orthonormal sets of Ca-exponential type orbitals, Ca- momentum space orbitals and za-hyperspherical harmonics. We notice that the one-range addition theorems for integer and noninteger n-Slater type orbitals and Gaussian type orbitals in position, momentum and four dimensional spaces are special cases of GETO HC, GMSO HC, and GHSH HC. The theorems presented can be useful in the accurate study of the electronic structure of atomic and molecular systems. 展开更多
关键词 electronic structure generalized exponential type orbitals one-range addition theorems Hartree-Fock-Roothaan equations
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