Titlebook: Excited States in Quantum Chemistry; Theoretical and Expe Cleanthes A. Nicolaides,Donald R. Beck Book 1979 D. Reidel Publishing Company, Do

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https://doi.org/10.1007/978-3-658-06294-1erally quite large difference in correlation energy between the combined system and the individual fragments. The situation is especially critical if multiple bonds are broken as in N., for example, for which the single-configuration Hartree-Fock treatment yields only a dissociation energy of D.= 5.

MEAN

Partizipative Gesundheitsforschungoretical organic chemistry. Because of their inherently more complicated nature, photochemical reactions are very difficult to analyze experimentally to the degree of mechanistic detail to which one has become accustomed in the case of thermal reactions. Even relatively crude theory is thus offered

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Ansgar Klein,Hans-Josef Legrand,Thomas Leiffor calculations on excited states of molecules. They represent neither a review nor an original article. Consequently the bibliography is limited to a few essential references. Limitations of space permit only a brief discussion of the main ideas. We shall refer the reader to the literature for numerical results where appropriate.

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Aspects of the Theory of Disordered Systems, one particle eigenstates thus affecting seriously the transport properties of the materials. The metastability of the amorphous state is revealed physically through a linear (in T) contribution to the specific heat in the limit T → 0.

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