Title:
Title:
CHF3 infrared absorption cross sections
Authors:
Authors:
Berezkin, Kirill, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.1. Allgemeine und Anorganische Chemie, ORCID: 0009-0000-8873-521X
Li, Gang, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.1. Allgemeine und Anorganische Chemie, ORCID: 0000-0002-5605-7896
Lüttschwager, Nils O. B., Georg-August-Universität Göttingen, Göttingen, GERMANY, ORCID: 0000-0001-8459-1714
Kim, Mi Eon, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4. Analytische Chemie der Gasphase, ORCID: 0000-0002-3024-2655
Bohlius, Henning, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4. Analytische Chemie der Gasphase, ORCID: 0000-0003-0495-2554

Show all authors (8)
Contributors:
Contributors:
HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Languages:
Languages:
en
DOI:
DOI:
10.7795/720.20250708
Resource Type:
Resource Type:
PTB: Measurement data, DINI: ResearchData, DataCite: Dataset
Publisher:
Publisher:
Physikalisch-Technische Bundesanstalt (PTB)
Rights:
Rights:
https://creativecommons.org/licenses/by/4.0/
CC-BY 4.0 International
Relationships:
Relationships:
IsSupplementedBy: DOI 10.7795/720.20250709
IsSupplementTo: DOI 10.1016/j.jqsrt.2025.109642
Dates:
Dates:
Available: 2025-07-08
Classifications:
Classifications:
INSPEC A0765G IR spectroscopy and spectrometers ; INSPEC A3320E Infrared molecular spectra
File:
File:
Download File (application/zip) 1.1 MB
MD5 Checksum: af972c4e329a4058b12321bfde938ddf
SHA256 Checksum: a530bb802ee5425aefa73f0c9b6cfa76c46ae997d3bdff794a00dffd53531a0b
Keywords:
Keywords:
CHF3 ; fluoroform ; HFC-23 ; IR ; absorption cross section ; molecular vibration ; fundamental vibration ; combination vibration bands ; integrated cross section ; measurement uncertainty ; hot bands
Abstract:
Abstract:
This dataset is generated from two composite infrared absorption cross section spectra of fluoroform (CHF3) in synthetic air at the temperatures 296.90(8) and 296.07(8) and the total pressures 674.69(62) and 748.92(70) Torr, respectively, in the range of 600-1940cm-1. Every spectrum was splitted into 6 regions, containing an isolated absorption feature. This makes 12 *.dat files altogether. Single components are available at https://doi.org/10.7795/720.20250709.
Table of Contents:
Table of Contents:
Description of the individual files:
Each file contains three columns: 1. Wavenumber (in cm-1); 2. Absorption cross section (in cm^2/molecule); 3. Expanded uncertainty (in cm^2/molecule).

Method: FTIR
Format: .dat (TAB as column separator)
Recommended software: MS Excel, Origin (proprietary), or any text editor (e.g., Notepad)
Parameters: in the filename in the following format: `CHF3_[temperature in K]_[total pressure in Torr]_air_[wavenumber interval in cm-1]_[nominal resolution in cm-1].dat`
Other:
Other:
This work was done within the project “Metrology for climate relevant volatile organic compounds”, MetClimVOC. The project has received funding from EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and motivation programme.
Funding:
Funding:
European Commission (EC), ISNI: 0000 0001 2162 673X, Grant Title: Metrology for climate relevant volatile organic compounds, Grant Number: EMPIR 19ENV06 MetClimVOC

Authors

Berezkin, Kirill, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.1. Allgemeine und Anorganische Chemie, ORCID: 0009-0000-8873-521X
Li, Gang, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.1. Allgemeine und Anorganische Chemie, ORCID: 0000-0002-5605-7896
Lüttschwager, Nils O. B., Georg-August-Universität Göttingen, Göttingen, GERMANY, ORCID: 0000-0001-8459-1714
Kim, Mi Eon, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4. Analytische Chemie der Gasphase, ORCID: 0000-0002-3024-2655
Bohlius, Henning, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.4. Analytische Chemie der Gasphase, ORCID: 0000-0003-0495-2554
Ebert, Volker, Physikalisch-Technische Bundesanstalt (PTB), 3.01 Metrologische Grundlagen der Gasanalytik, ORCID: 0000-0002-1394-3097
Harrison, Jeremy J., School of Physics and Astronomy, University of Leicester, Leicester, United Kingdom; National Centre for Earth Observation, Leicester, United Kingdom, ORCID: 0000-0001-5530-7104
Lüttschwager (Domanskaya), Alexandra, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 3.1. Allgemeine und Anorganische Chemie, ORCID: 0000-0002-3934-6805

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