{
  "annotation_id": "aac8e803-7c73-44e4-98d7-6294faafeb8e",
  "date_created": "2026-03-02T18:01:24.525000Z",
  "date_modified": "2026-03-02T18:01:24.525000Z",
  "file_hash": "e0c1265c109e143b21992b2c3c502d8bfc24f03caeed60d74f64237f885fa2c2",
  "private": false,
  "record": {
    "abstract": "A U(2) algebraic model is presented to describe stretching vibrations of\nXY$_n$ (n=2, 3, and 4) systems, where anharmonic interactions between the bond\nmodes are considered. This model in a limit corresponds to an anharmonically\ncoupled local mode model. As an example, the model for a molecule XY$_4$ is\napplied to recently observed spectra of methane in both gas and liquid phases,\nand the results obtained are in good agreement with the experiments.",
    "arxiv_id": "physics/9904021",
    "authors": [
      "Xi-Wen Hou",
      "Shi-Hai Dong",
      "Zhong-Qi Ma"
    ],
    "categories": [
      "physics.chem-ph"
    ],
    "doi": "10.1006/jmsp.1999.7811",
    "journal_ref": "J. Mole. Spect. 195 (1999) 132",
    "title": "Algebraic description of anharmonic stretching vibrations",
    "url": "https://arxiv.org/abs/physics/9904021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3e497b21-c9a8-4470-b8f4-a4c9b21c9cfe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}