Optical constants

Refractive index of C₂Cl₃N (Trichloroacetonitrile)

Chang et al. 2024: n 0.4–2.0 µm

Data: formula 1
Range: 0.4–2 µm
Temperature: 295 K
Licence: CC0-1.0

Axis Log x Log y

Click the plot to set the calculator wavelength.

At one wavelength

Refractive index n: 1.43619
Extinction coefficient k: 0

Permittivity ε₁: 2.06265
Permittivity ε₂: 0

Absorption coefficient α: 0 cm⁻¹
Penetration depth δ = λ/(2πk): — nm

Abbe number V_d: 55.997
Chromatic dispersion dn/dλ: -0.0399172 µm⁻¹

Group index n_g: 1.45965
Group velocity dispersion: 75.9152 fs²/mm

Dispersion parameter D: -414.158 ps/(nm·km)
Photon energy: 2.11001 eV

ε = (n + ik)², α = 4πk/λ, n_g = n − λ dn/dλ, GVD = λ³/(2πc²) d²n/dλ², D = −(λ/c) d²n/dλ². Group-velocity dispersion is given for formula data only.

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# C2Cl3N (Trichloroacetonitrile): Chang et al. 2024: n 0.4–2.0 µm
c2cl3n = ls.fetch_refractiveindex("organic", "trichloroacetonitrile", "Chang", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(c2cl3n.range_nm)  # (400, 2000) nm
eps = c2cl3n.eps([633])  # 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_e3d3243d85c0/lightsmith"
c2cl3n = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(c2cl3n.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (trichloroacetonitrile/chang-2024).

# ... load c2cl3n as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=c2cl3n)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, 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"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_e3d3243d85c0/lightsmith?model=drude_lorentz"
c2cl3n_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

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.

Dispersion formula

Sellmeier (formula 1), λ in µm

n^{2} - 1 = \frac{1.03 λ^{2}}{λ^{2} - {0.103}^{2}}

Valid from 0.4 to 2.0 µm.

Coefficients as stored

C_i	Value
C1	0.0
C2	1.03
C3	0.103

Comments and conditions

21.5–22.0 °C.

Conditions

temperature: 295 K

References

H.-J. Chang, N. Munera, C. Lopez-Zelaya, D. Banerjee, G. Beadie, E. W. Van Stryland, D. J. Hagan. Refractive index measurements of liquids from 0.5 to 2 µm using Rayleigh interferometry. Opt. Mater. Express 14, 1253–1267 (2024)

doi:10.1364/ome.519907 Refractive index measurements of liquids from 0.5 to 2 µm using Rayleigh interferometry, Optical Materials Express (2024)

Cite

Hao-Jung Chang et al.. Refractive index measurements of liquids from 0.5 to 2 µm using Rayleigh interferometry. Optical Materials Express, 14, 1253 (2024), doi:10.1364/ome.519907; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

Computed on 400 wavelengths, the same grid as the API and the library

CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata

C2Cl3N (Trichloroacetonitrile), Chang et al. 2024: n 0.4–2.0 µm: n and k versus wavelength
λ (µm)	n
0.4	1.450223
0.401617	1.450006
0.40324	1.449791
0.40487	1.449578
0.406506	1.449367
0.408149	1.449157
0.409799	1.44895
0.411455	1.448745
0.413118	1.448541
0.414788	1.448339
0.416465	1.448139
0.418148	1.447941
0.419838	1.447744
0.421535	1.44755
0.423239	1.447357
0.424949	1.447166
0.426667	1.446976
0.428391	1.446788
0.430123	1.446602
0.431861	1.446418
0.433607	1.446235
0.435359	1.446053
0.437119	1.445874
0.438886	1.445696
0.44066	1.445519
0.442441	1.445344
0.444229	1.445171
0.446024	1.444999
0.447827	1.444829
0.449637	1.44466
0.451455	1.444493
0.453279	1.444327
0.455111	1.444162
0.456951	1.443999
0.458798	1.443838
0.460652	1.443678
0.462514	1.443519
0.464383	1.443362
0.46626	1.443206
0.468145	1.443051
0.470037	1.442898
0.471937	1.442746
0.473844	1.442595
0.47576	1.442446
0.477683	1.442298
0.479613	1.442151
0.481552	1.442006
0.483498	1.441862
0.485452	1.441719
0.487414	1.441577
0.489385	1.441437
0.491363	1.441298
0.493349	1.44116
0.495343	1.441023
0.497345	1.440887
0.499355	1.440753
0.501373	1.44062
0.5034	1.440488
0.505434	1.440357
0.507477	1.440227
0.509528	1.440098
0.511588	1.439971
0.513655	1.439844
0.515732	1.439719
0.517816	1.439594
0.519909	1.439471
0.52201	1.439349
0.52412	1.439228
0.526239	1.439108
0.528366	1.438989
0.530501	1.438871
0.532645	1.438754
0.534798	1.438637
0.53696	1.438522
0.53913	1.438408
0.541309	1.438295
0.543497	1.438183
0.545694	1.438072
0.547899	1.437962
0.550114	1.437853
0.552337	1.437744
0.55457	1.437637
0.556811	1.43753
0.559062	1.437425
0.561321	1.43732
0.56359	1.437216
0.565868	1.437113
0.568155	1.437011
0.570452	1.43691
0.572757	1.43681
0.575072	1.436711
0.577397	1.436612
0.57973	1.436514
0.582073	1.436417
0.584426	1.436321
0.586788	1.436226
0.58916	1.436131
0.591541	1.436038
0.593932	1.435945
0.596333	1.435853
0.598743	1.435761
0.601163	1.435671
0.603593	1.435581
0.606032	1.435492
0.608482	1.435404
0.610941	1.435316
0.613411	1.435229
0.61589	1.435143
0.618379	1.435058
0.620879	1.434973
0.623388	1.434889
0.625908	1.434806
0.628438	1.434724
0.630978	1.434642
0.633528	1.434561
0.636088	1.43448
0.638659	1.434401
0.641241	1.434322
0.643833	1.434243
0.646435	1.434165
0.649048	1.434088
0.651671	1.434012
0.654305	1.433936
0.656949	1.433861
0.659605	1.433786
0.662271	1.433712
0.664948	1.433639
0.667635	1.433566
0.670334	1.433494
0.673043	1.433423
0.675763	1.433352
0.678495	1.433282
0.681237	1.433212
0.68399	1.433143
0.686755	1.433074
0.689531	1.433006
0.692318	1.432939
0.695116	1.432872
0.697925	1.432806
0.700746	1.43274
0.703579	1.432675
0.706422	1.43261
0.709278	1.432546
0.712144	1.432483
0.715023	1.43242
0.717913	1.432357
0.720814	1.432295
0.723728	1.432234
0.726653	1.432173
0.72959	1.432112
0.732539	1.432052
0.7355	1.431993
0.738472	1.431934
0.741457	1.431876
0.744454	1.431818
0.747463	1.43176
0.750484	1.431703
0.753517	1.431647
0.756563	1.43159
0.759621	1.431535
0.762691	1.43148
0.765774	1.431425
0.768869	1.431371
0.771977	1.431317
0.775097	1.431264
0.77823	1.431211
0.781375	1.431158
0.784533	1.431106
0.787704	1.431055
0.790888	1.431003
0.794085	1.430953
0.797294	1.430902
0.800517	1.430852
0.803752	1.430803
0.807001	1.430754
0.810263	1.430705
0.813538	1.430657
0.816826	1.430609
0.820127	1.430562
0.823442	1.430514
0.82677	1.430468
0.830112	1.430421
0.833467	1.430376
0.836836	1.43033
0.840218	1.430285
0.843614	1.43024
0.847024	1.430196
0.850447	1.430151
0.853885	1.430108
0.857336	1.430064
0.860801	1.430021
0.86428	1.429979
0.867774	1.429937
0.871281	1.429895
0.874803	1.429853
0.878338	1.429812
0.881888	1.429771
0.885453	1.42973
0.889032	1.42969
0.892625	1.42965
0.896233	1.429611
0.899855	1.429571
0.903492	1.429532
0.907144	1.429494
0.910811	1.429455
0.914492	1.429417
0.918188	1.42938
0.921899	1.429342
0.925626	1.429305
0.929367	1.429269
0.933123	1.429232
0.936895	1.429196
0.940681	1.42916
0.944483	1.429125
0.948301	1.429089
0.952134	1.429054
0.955982	1.42902
0.959846	1.428985
0.963726	1.428951
0.967621	1.428917
0.971532	1.428884
0.975458	1.42885
0.979401	1.428817
0.98336	1.428785
0.987334	1.428752
0.991325	1.42872
0.995332	1.428688
0.999355	1.428656
1.00339	1.428625
1.00745	1.428594
1.01152	1.428563
1.01561	1.428532
1.01971	1.428502
1.02384	1.428472
1.02797	1.428442
1.03213	1.428412
1.0363	1.428383
1.04049	1.428353
1.04469	1.428324
1.04892	1.428296
1.05316	1.428267
1.05741	1.428239
1.06169	1.428211
1.06598	1.428183
1.07029	1.428156
1.07461	1.428128
1.07896	1.428101
1.08332	1.428074
1.0877	1.428048
1.09209	1.428021
1.09651	1.427995
1.10094	1.427969
1.10539	1.427943
1.10986	1.427917
1.11434	1.427892
1.11885	1.427867
1.12337	1.427842
1.12791	1.427817
1.13247	1.427793
1.13704	1.427768
1.14164	1.427744
1.14625	1.42772
1.15089	1.427696
1.15554	1.427673
1.16021	1.427649
1.1649	1.427626
1.16961	1.427603
1.17433	1.42758
1.17908	1.427558
1.18385	1.427535
1.18863	1.427513
1.19344	1.427491
1.19826	1.427469
1.2031	1.427447
1.20797	1.427425
1.21285	1.427404
1.21775	1.427383
1.22267	1.427362
1.22761	1.427341
1.23258	1.42732
1.23756	1.4273
1.24256	1.427279
1.24758	1.427259
1.25262	1.427239
1.25769	1.427219
1.26277	1.4272
1.26787	1.42718
1.273	1.427161
1.27814	1.427141
1.28331	1.427122
1.2885	1.427103
1.2937	1.427085
1.29893	1.427066
1.30418	1.427048
1.30945	1.427029
1.31475	1.427011
1.32006	1.426993
1.3254	1.426975
1.33075	1.426957
1.33613	1.42694
1.34153	1.426922
1.34696	1.426905
1.3524	1.426888
1.35787	1.426871
1.36335	1.426854
1.36886	1.426837
1.3744	1.426821
1.37995	1.426804
1.38553	1.426788
1.39113	1.426772
1.39675	1.426756
1.4024	1.42674
1.40807	1.426724
1.41376	1.426708
1.41947	1.426693
1.42521	1.426677
1.43097	1.426662
1.43675	1.426647
1.44256	1.426632
1.44839	1.426617
1.45424	1.426602
1.46012	1.426587
1.46602	1.426573
1.47195	1.426558
1.4779	1.426544
1.48387	1.42653
1.48987	1.426516
1.49589	1.426502
1.50194	1.426488
1.50801	1.426474
1.5141	1.42646
1.52022	1.426447
1.52637	1.426433
1.53254	1.42642
1.53873	1.426407
1.54495	1.426394
1.55119	1.426381
1.55746	1.426368
1.56376	1.426355
1.57008	1.426342
1.57643	1.42633
1.5828	1.426317
1.58919	1.426305
1.59562	1.426292
1.60207	1.42628
1.60854	1.426268
1.61504	1.426256
1.62157	1.426244
1.62813	1.426232
1.63471	1.426221
1.64131	1.426209
1.64795	1.426198
1.65461	1.426186
1.6613	1.426175
1.66801	1.426164
1.67475	1.426152
1.68152	1.426141
1.68832	1.42613
1.69514	1.42612
1.70199	1.426109
1.70887	1.426098
1.71578	1.426087
1.72271	1.426077
1.72968	1.426066
1.73667	1.426056
1.74369	1.426046
1.75074	1.426036
1.75781	1.426025
1.76492	1.426015
1.77205	1.426005
1.77921	1.425996
1.7864	1.425986
1.79362	1.425976
1.80087	1.425966
1.80815	1.425957
1.81546	1.425947
1.8228	1.425938
1.83017	1.425929
1.83756	1.425919
1.84499	1.42591
1.85245	1.425901
1.85993	1.425892
1.86745	1.425883
1.875	1.425874
1.88258	1.425866
1.89019	1.425857
1.89783	1.425848
1.9055	1.42584
1.9132	1.425831
1.92093	1.425823
1.9287	1.425814
1.93649	1.425806
1.94432	1.425798
1.95218	1.425789
1.96007	1.425781
1.96799	1.425773
1.97594	1.425765
1.98393	1.425757
1.99195	1.425749
2	1.425742

Optical transmission calculator

Free-standing sample in vacuum, normal incidence

Transmittance T: —
Reflectance R: —

Fresnel reflection calculator

R_p: —
R_s: —
R = (R_p+R_s)/2: —
Phase φ_p: —
Phase φ_s: —
Brewster angle θ_B: —
Critical angle θ_C: —

C₂Cl₃N (Trichloroacetonitrile): all datasets

Chang et al. 2024: n 0.4–2.0 µm n 0.4–2 µm default

About C2Cl3N (Trichloroacetonitrile)

Trichloroacetonitrile (C₂Cl₃N) is a halogenated nitrile compound characterized by its colorless appearance and sharp, pungent odor. It is primarily used as a chemical intermediate in the synthesis of agrochemicals, pharmaceuticals, and other organic compounds. Trichloroacetonitrile is also employed in the production of antifungal agents and as a reagent in various chemical reactions where it contributes its halogen and nitrile functionalities. Although it is not commonly noted for its optical properties, trichloroacetonitrile's unique molecular structure could have potential uses in specialized optical measurements and studies involving nitrile-based materials.

More about C2Cl3N (Trichloroacetonitrile) →

Provenance

Version: 1 (snapshot c5c2f18)
Source page: refractiveindex.info
Original file: database/data/organic/C2Cl3N - trichloroacetonitrile/nk/Chang.yml
ID: ds_e3d3243d85c0
API: /v1/datasets/ds_e3d3243d85c0

Plot