Structural Determination of the Symmetry-Breaking Parameter in <i>trans</i>-<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mo>(</mo><mi mathvariant="normal">CH</mi><mo>)</mo></mrow><mrow><mi>x</mi></mrow></msub></mrow></math></span>

C. R. Fincher, Jr; C. -E. Chen; A. J. Heeger; A. G. MacDiarmid; J. B. Hastings

doi:10.1103/PhysRevLett.48.100

Structural Determination of the Symmetry-Breaking Parameter in trans- ${(CH)}_{x}$

C. R. Fincher, Jr., C. -E. Chen, A. J. Heeger, A. G. MacDiarmid, and J. B. Hastings

Phys. Rev. Lett. 48, 100 – Published 11 January 1982

Abstract

The magnitude of the symmetry-breaking dimerization distortion has been determined by analysis of x-ray scattering data from trans- ${(CH)}_{x}$ $u_{0} ≃ 0.03$ Å.This distortion can account for the magnitude of the energy gap, implying that electron-electron interactions do not dominate the physics of long-chain polyenes.