Mössbauer spectroscopy of ferrocene-containing thermotropic liquid crystals

Bekeshev, V. G.; Rochev, V.Ya.; Makarov, E. F.

doi:10.1007/bf02398215

Cited by 4 publications

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“…Besides ESR, Mössbauer spectroscopic investigations have also been performed. [18,19,23] In this paper, we describe the mesomorphism of iron(iii) complexes containing the ligand 1,4,7-tris[3,4-bis(decyloxy)benzyl]-1,4,7-triazacyclononane (L), their thermal transformations, and the results of Mössbauer spectroscopic investigations, which revealed their octahedral structure, their bridging behavior, and a redox equilibrium of the iron centers.…”

Section: Introductionmentioning

confidence: 99%

Liquid Crystalline Octahedral Iron(III) Complexes with 1,4,7-Tris[3,4-bis(decyloxy)benzyl]-1,4,7-triazacyclononane: Thermal Characterization and Mössbauer Investigations of Bridging and Redox Behavior

et al. 1998

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The complexation of iron(iii) chloride with 1,4,7-tris[3,4-bis(decyloxy)-benzyl]-1,4,7-triazacyclononane leads to a liquid crystalline product, which forms a second mesophase after thermal treatment at around 70 8C above the first clearing temperature. Polarizing microscopy, DSC, and UV observations reveal a transformation, which was further investigated by Mössbauer spectroscopy. In different temperature ranges, various octahedral, binuclear iron(iii) complexes are present along with a monomeric species. In the presence of water and oxygen, the iron(iii) center participates in a redox equilibrium.

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Section: Introductionmentioning

confidence: 99%