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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
| You are here: Experimental > One molecule all properties | |
| Other names |
|---|
| Propane, 2,2-difluoro-; HFC 272ca; R 272ca; Dimethyldifluoromethane; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/C3H6F2/c1-3(2,4)5/h1-2H3 | CC(F)(F)C |
| State | Conformation |
|---|---|
| 1A1 | C2V |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-543.00 | 13.00 | kJ mol-1 | webbook | |
Hfg(0K) ![]() |
13.00 | kJ mol-1 | webbook |
| Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
|---|---|---|---|---|---|---|---|---|---|
| Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
| 1 | A1 | 3017 | 1981Dur/Gui:5946-5953 | CH3 a-str | |||||
| 2 | A1 | 2963 | CH3 s-stretch | ||||||
| 3 | A1 | 1443 | CH3 a-deform | ||||||
| 4 | A1 | 1396 | CH3 s-deform | ||||||
| 5 | A1 | 1245 | CF2 s-str | ||||||
| 6 | A1 | 908 | CH3 rock | ||||||
| 7 | A1 | 779 | CC s-stretch | ||||||
| 8 | A1 | 524 | CF2 sciss | ||||||
| 9 | A1 | 333 | CCC bend | ||||||
| 10 | A2 | 3015 | CH3 a-str | ||||||
| 11 | A2 | 1452 | CH3 a-deform | ||||||
| 12 | A2 | 994 | CH3 rock | ||||||
| 13 | A2 | 354 | CF2 twist | ||||||
| 14 | A2 | 255 | CH3 torsion | ||||||
| 15 | B1 | 3017 | B1 & B2 switched | CH3 a-str | |||||
| 16 | B1 | 1471 | B1 & B2 switch | CH3 a-deform | |||||
| 17 | B1 | 1197 | B1 & B2 switch | CF2 a-str | |||||
| 18 | B1 | 925 | B1 & B2 switch | CH3 rock | |||||
| 19 | B1 | 517 | B1 & B2 switch | CF2 rock | |||||
| 20 | B1 | 285 | B1 & B2 switch | CH3 torsion | |||||
| 21 | B2 | 3017 | B1 & B2 switch | CH3 a-str | |||||
| 22 | B2 | 2955 | B1 & B2 switch | CH3 s-stretch | |||||
| 23 | B2 | 1464 | B1 & B2 switch | CH3 a-deform | |||||
| 24 | B2 | 1390 | B1 & B2 switch | CH3 s-deform | |||||
| 25 | B2 | 1266 | B1 & B2 switch | CC a-stretch | |||||
| 26 | B2 | 987 | B1 & B2 switch | CH3 rock | |||||
| 27 | B2 | 435 | B1 & B2 switch | CF2 wag | |||||
| A | B | C | reference | comment |
|---|---|---|---|---|
| 0.17178 | 0.16145 | 0.16030 | 1981Dur/Gui:5946-5953 | B0 |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 1077623 | amu3Å6 | 4.9344061159275E-114 | gm3 cm6 | |
Point Group C2v
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| Atom | x (Å) | y (Å) | z (Å) |
|---|
Bond descriptions
| Bond Type | Count |
|---|---|
| C-C | 2 |
| C-F | 2 |
| H-C | 6 |
| Atom 1 | Atom 2 |
|---|---|
| C1 | C2 |
| C1 | C3 |
| C1 | F4 |
| C1 | F5 |
| C2 | H6 |
| C2 | H8 |
| C2 | H9 |
| C3 | H7 |
| C3 | H10 |
| C3 | H11 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 11.420 | 0.020 | webbook |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | 2.400 | 2.400 | 1981Dur/Gui:5946-5953 | MW μ0 ±0.02 D | C2v | 1 | 2 | ||
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | C2v | 1 | 2 | |||||
| squib | reference | DOI |
|---|---|---|
| 1981Dur/Gui:5946-5953 | JR Durig, GA Guirgis, YS Li "Microwave, Raman, and far infrared spectra, barrier to internal rotation, and dipole moment of 2,2-difluoropropane" J. Chem. Phys. 74, 5946 (1981) | 10.1063/1.441032 |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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