C₉H₁₈O₂ (Pelargonic acid)

Liquids

1 dataset, together covering 0.4–0.59 µm. Default: Rubio et al. 2015: n 0.400–0.590 µm.

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Datasets

Rubio et al. 2015: n 0.400–0.590 µm n 0.4–0.59 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# C9H18O2 (Pelargonic acid): Rubio et al. 2015: n 0.400–0.590 µm
c9h18o2 = ls.fetch_refractiveindex("organic", "pelargonic_acid", "Rubio", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c9h18o2.range_nm)  # (400, 590) nm
eps = c9h18o2.eps([486])  # complex permittivity

Downloads the original record once (pinned to the imported snapshot) and caches it.

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_a84ffcd2ed10/lightsmith"
c9h18o2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c9h18o2.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (pelargonic-acid/rubio-2015).

# ... load c9h18o2 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c9h18o2)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=590, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

Materials guide Open a sphere of it in Studio Quick start Ask the community

Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.

About C9H18O2 (Pelargonic acid)

Pelargonic acid is a saturated fatty acid with a nine-carbon chain. It is a colorless oily liquid with an unpleasant odor. Naturally occurring in some plants and essential oils, pelargonic acid is used as a contact herbicide for weed control. Additionally, it is employed in the production of lubricants, plasticizers, and as an intermediate in organic synthesis. Chemical formula: CH₃(CH₂)₇COOH

Other names: pelargonic_acid, C9H18O2, Pelargonic acid, C₉H₁₈O₂, Nonanoic acid, n-Nonanoic acid, 1-Nonanoic acid, {'"C9': '0"'}

API: /v1/materials/mat_67afe1383cc4 · slug pelargonic-acid