Colloid Journal

, Volume 70, Issue 3, pp 268–273 | Cite as

Elastic properties of a nematic in a tetrapalladium organyl-pentadecane system

  • A. V. Golovanov
  • G. V. Ryabchuk


The temperature dependences of birefringence Δn, anisotropy of permittivity ɛa, and elastic constants K 11 and K 33 in the nematic phase of a tetrapalladium organyl-pentadecane system with a pentadecane content of 55 wt % have been investigated experimentally. It has been shown that, as temperature is elevated, ɛa, K 11, and K 33 values decrease and Δn remains unchanged. Elastic constants K 11 and K 33 have been established to vary from 3.4 × 10−7 to 5.6 × 10−6 dyn and from 1.3 × 10−6 to 27.4 × 10−5 dyn, respectively. The value of ɛa has been revealed to vary over the range 0.2–0.5. It has been found that, at temperatures above the N2 → Cr phase transition by 6°C, an imposed electric field induces the growth of tetrapalladium organyl crystals.


Liquid Crystal Elastic Constant Colloid Journal Nematic Phase Pentadecane 
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Copyright information

© MAIK Nauka 2008

Authors and Affiliations

  • A. V. Golovanov
    • 1
  • G. V. Ryabchuk
    • 2
  1. 1.Nesmeyanov Institute of Organoelement CompoundsRussian Academy of SciencesMoscowRussia
  2. 2.Volgograd State Technical UniversityVolgogradRussia

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