Studied an energy spectrum of traps in poly(di-n-hexylsilane) by fractional thermoluminescence. The spectrum is discrete, while the frequency factor is dispersed. It was found that this energies form three oscillatory series. Energy of the oscillatory quantum for each series coincides with the energy corresponding symmetrical Raman mode of the polymer silicon backbone. It is found that each oscillator series corresponds to a specific conformation of the silicon backbone. Model of traps was developed which adequately explain all observed thermoluminescent features of the material.