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Nonharmonic frequency

In closed system studies of the BZ reaction, three principal modes of homogeneous oscillations have been identified (1) low-frequency, large amplitude, highly nonlinear (i.e., nonharmonic) relaxation oscillations... [Pg.205]

Similar results hold for more general low-frequency fluctuations, nonharmonic and with arbitrary direction 9. Indeed, in the same rotating frame the dynamics reduces to rotation about the ((-axis by the angle (p(t) =... [Pg.22]

If we neglect the terms in J,.2 and J J2, and consequently the nonharmonic character and the dependence of the y s on J, the energy is resolved into a rotational component and an oscillation component of the well-known form. As a nearer approximation we have a dependence of the oscillation frequency on the rotation quantum number and also the non-harmonic character of the oscillation. Naturally our method admits of more accurate calculations of the energy, involving higher powers of J and Je. [Pg.126]

The measured frequency of the hydroxyl anion differs from that expected for a harmonic oscillator, because molecular species behave like nonharmonic oscillators (5—7). Briefly, the anharmonicity Xj2 (in units of cm ofa molec-... [Pg.105]

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Nonharmonicity

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