{
  "annotation_id": "fa270c03-b6f6-4ae3-809f-903372d41697",
  "date_created": "2026-03-02T18:01:10.315000Z",
  "date_modified": "2026-03-02T18:01:10.315000Z",
  "file_hash": "c086b1642948639384e2b29555fed0cc1a22ea9a7eb04132f635cd967d80b6ce",
  "private": false,
  "record": {
    "abstract": "An effusive pyrolysis source is described for generating a continuous beam of\nradicals under conditions appropriate for the helium droplet pick-up method.\nRotationally resolved spectra are reported for the $\\nu_1$ vibrational mode of\nthe propargyl radical in helium droplets at 3322.15 cm$^{-1}$. Stark spectra\nare also recorded that allow for the first experimental determination of the\npermanent electric dipole moment of propargyl, namely -0.150 D and -0.148 D for\nground and excited state, respectively, in good agreement with previously\nreported ab initio results of -0.14 D [1]. The infrared spectrum of the $\\nu_1$\nmode of propargyl-bromide is also reported. The future application of these\nmethods for the production of novel radical clusters is discussed.",
    "arxiv_id": "physics/0608086",
    "authors": [
      "Jochen K\u00fcpper",
      "Jeremy M. Merritt",
      "Roger E. Miller"
    ],
    "categories": [
      "physics.atm-clus",
      "physics.chem-ph"
    ],
    "doi": "10.1063/1.1484104",
    "journal_ref": "J. Chem. Phys. 117(2), 647-652 (2002)",
    "title": "Free Radicals in Superfluid Liquid Helium Nanodroplets: A Pyrolysis   Source for the Production of Propargyl Radical",
    "url": "https://arxiv.org/abs/physics/0608086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3fbac698-6d26-401f-a0a1-a594999d8b39",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}