## A New-Generation Density Functional: Towards Chemical by Igor Ying Zhang, Xin Xu (auth.)

By Igor Ying Zhang, Xin Xu (auth.)

*A New-Generation Density practical: in the direction of Chemical Accuracy for Chemistry of major crew Elements* covers the newest growth within the improvement of a brand new iteration of density sensible thought (DFT) for exact descriptions of thermochemistry, thermochemical kinetics, and nonbonded interactions of major crew molecules. during this e-book, the authors current the doubly hybrid density functionals (DHDFs), which dramatically enhance the accuracy for predictions of severe houses through together with the position of the digital (unoccupied) orbitals. The authors not just speak about the theoretical bases of 3 sessions of DHDFs but additionally display their functionality utilizing a few well-established benchmarking info sets.

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**Extra resources for A New-Generation Density Functional: Towards Chemical Accuracy for Chemistry of Main Group Elements**

**Sample text**

11638 70. Rasolt M, Geldart DJW (1986) Exchange and correlation energy in a nonuniform fermion fluid. Phys Rev B 34:1325–1328. 1325 71. Sham LJ (1971) Computational Methods in Band Theory. Plenum, New York 72. Colle R, Salvetti O (1975) Approximate calculation of the correlation energy for the closed shells. Theoret Chim Acta 37:329–334. 1007/BF01028401 73. Becke AD (1983) Hartree–Fock exchange energy of an inhomogeneous electron gas. Int J Quantum Chem 23:1915–1922. 560230605 74. Becke AD (1998) A new inhomogeneity parameter in density-functional theory.

Chem Phys 309:67–76. 034 86. Gritsenko OV, Schipper PRT, Baerends EJ (1997) Exchange and correlation energy in density functional theory: Comparison of accurate density functional theory quantities with traditional Hartree–Fock based ones and generalized gradient approximations for the molecules Li2, N2, F2. J Chem Phys 107:5007–5015. 474864 24 1 An Overview of Modern Density Functional Theory 87. Levy M, March NH, Handy NC (1996) On the adiabatic connection method, and scaling of electron–electron interactions in the Thomas–Fermi limit.

31, one starts from the adiabatic connection formulism, but eventually departs from the adiabatic connection path by replacing the general multideterminant W with a single-determinant wavefunction U with no constraint on the density q. 2 Development of DHDFs of the B2PLYP Type B2PLYP was proposed before DS1DH and 1DH. The later explored the theoretical foundation of the B2PLYP-type DHDFs in terms of multideterminant extension of the Kohn-Sham scheme. On the other hand, as Eq. 29 is just an approximation, the scaling factor before Ec ½q needs not to be k2 .