{
  "abstract": "Chirality often induces marked structural changes in liquid crystals (LCs) and can even induce new phases. Where chirality resides in a mesogen is thus a fundamental question, but because mesogens favor planar structures, the effect of chirality at the molecular center (core chirality) on their assemblies has remained poorly understood. This Account explores this question with the octahedral tris(β-diketonato) family M-Cn (M = Ru, Ir), whose Δ/Λ configuration proves to be a decisive design element. Enantiopure Ru-C8 builds helical hexagonal columns, whereas its racemate assembles ΔΛ-alternating paired columns, and longer alkyl chains switch the system to a micellar cubic phase. Strikingly, the racemate is the more stable form: Wallach’s rule, known for crystals, also governs the LC state. This Δ–Λ recognition can be harnessed: pairing Δ-Ru-Cn with Λ-Ir-Cn gives quasi-racemic LCs with emergent chiroptical properties, such as stereoselectively enhanced vibrational circular dichroism.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Chemistry, College of Humanities & Sciences",
    "Nihon University",
    "Faculty of Engineering and Design",
    "Kagawa University",
    "School of Frontier Engineering, Kitasato University, 1-15-1 Kitazato, Sagamihara, Kanagawa, Japan, 252-0373"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Jun Yoshida",
      "orcid": "0000-0002-2618-152X"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Mitsuo Hara"
    },
    {
      "affs": [
        4
      ],
      "name": "Go Watanabe"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6pf2fndgdn2xn.bib",
  "cited_by": 0,
  "doi": "10.26434/chemrxiv.15010803/v1",
  "fulltext_url": null,
  "id": "6pf2fndgdn2xn",
  "issns": [],
  "landing_url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010803/v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2504|Liquid Crystal Research Advancements"
    ]
  ],
  "openalex": "W7223186209",
  "pdf_url": "https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15010803/v1",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": "American Chemical Society (ACS)",
  "ris": "https://research.draconitic.com/paper/6pf2fndgdn2xn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:24Z",
      "native_id": "10.26434/chemrxiv.15010803",
      "source": "chemrxiv",
      "url": "https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010803/v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Liquid Crystal Research Advancements",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Chiral Octahedral Metallomesogens with Δ/Λ Core Chirality: Extending Wallach's Rule from Crystals to Liquid Crystals",
  "title_text": "Chiral Octahedral Metallomesogens with Δ/Λ Core Chirality: Extending Wallach's Rule from Crystals to Liquid Crystals",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:24Z",
  "url": "https://research.draconitic.com/paper/6pf2fndgdn2xn",
  "venue": "ChemRxiv",
  "versions": []
}