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543.42:547.751 Vibrational spectra of indole in the isolated state and in aqueous solution have been calculated using a B3LYP/6-311++G(d, p) method. The influence of water as a solvent on vibrational spectra of indole was examined with due regard for intermolecular interactions (SCRF method) and explicit consideration of the effect of hydrogen bonds (1:1 indole:water complex).

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The possibility of the existence of states with a spontaneous interlayer phase coherence in multilayer electron systems in a high perpendicular to the layers magnetic field is investigated. It is shown that phase coherence can be established in such systems only within individual pairs of adjacent layers, while such coherence does not exist between layers of different pairs. The conditions for stability of the state with interlayer phase coherence against transition to a charge-ordered state are determined. It is shown that in the system with the number of layers N ≤ 10 these conditions are satisfied at any value of the interlayer distance d. For N > 10 there are two intervals of stability: at sufficiently large and at sufficiently small d. For N → ∞ the stability interval in the region of small d vanishes.

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