Dichlorodifluoromethane
- Formula: CCl2F2
- Molecular weight: 120.914
- IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1(3,4)5
- IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N
- CAS Registry Number: 75-71-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Methane, dichlorodifluoro-; Algofrene Type 2; Arcton 12; Arcton 6; Chlorofluoromethane (CCl2F2); Difluorodichloromethane; Electro-CF 12; F 12; Freon 12; Frigen 12; FC 12; Genetron 12; Isceon 122; Isotron 12; Ledon 12; R 12; R 12, Refrigerant; Refrigerant 12; CF2Cl2; Fluorocarbon 12; Propellant 12; Dwuchlorodwufluorometan; Eskimon 12; Freon F-12; Kaiser chemicals 12; Rcra waste number U075; Ucon 12; Ucon 12/halocarbon 12; UN 1028; CCl2F2; Halon 122; CFC-12; Halocarbon 12; Isotron 2; Propellent 12; Refrigerant R12; Chlorofluorocarbon 12; Dymel 12; FCC 12; FKW 12; Forane 12
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Vibrational and/or electronic energy levels
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Takehiko Shimanouchi
Symmetry: C2ν Symmetry Number σ = 2
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1 | 1 | CF2 s-str | 1101 | C | 1101 S | gas | 1098 M | |||
| a1 | 2 | CCl2 s-str | 667 | C | 667 S | gas | 667.2 S p | |||
| a1 | 3 | CF2 scis | 458 | D | 457.5 S | gas | ||||
| a1 | 4 | CCl2 scis | 262 | C | 261.5 S dp | gas | ||||
| a2 | 5 | CF2 twist | 322 | C | ia | 322 W dp | gas | |||
| b1 | 6 | CF2 a-str | 1159 | C | 1159 S | 1167 W dp | gas | |||
| b1 | 7 | CF2 rock | 446 | C | 446 W | |||||
| b2 | 8 | CCl2 a-str | 902 | E | 922 VS | 923 W dp | gas | |||
| b2 | 8 | CCl2 a-str | 902 | E | 882 VS | FR(ν3+ν9) | ||||
| b2 | 9 | CF2 wag | 437 | C | 437 W | 433 M | gas | |||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| M | Medium |
| W | Weak |
| ia | Inactive |
| p | Polarized |
| dp | Depolarized |
| FR | Fermi resonance with an overtone or a combination tone indicated in the parentheses. |
| C | 3~6 cm-1 uncertainty |
| D | 6~15 cm-1 uncertainty |
| E | 15~30 cm-1 uncertainty |
References
Go To: Top, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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