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Experimental data for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-)

22 02 02 11 45
Other names
1-Chloro-2-fluoroethane; Monofluoromonochloroethane; HCFC 151;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2H4ClF/c3-1-2-4/h1-2H2 VEZJSKSPVQQGIS-UHFFFAOYSA-N ClCCF
State Conformation
1A' CS
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A' 2984   1991Dur/Liu:4664      
2 A' 2966   1991Dur/Liu:4664      
3 A' 1467   1991Dur/Liu:4664      
4 A' 1436   1991Dur/Liu:4664      
5 A' 1397   1991Dur/Liu:4664      
6 A' 1306   1991Dur/Liu:4664      
7 A' 1090   1991Dur/Liu:4664      
8 A' 1052   1991Dur/Liu:4664      
9 A' 779   1991Dur/Liu:4664      
10 A' 383   1991Dur/Liu:4664      
11 A' 245   1991Dur/Liu:4664      
12 A" 3025   1991Dur/Liu:4664      
13 A" 3010   1991Dur/Liu:4664      
14 A" 1258   1991Dur/Liu:4664      
15 A" 1200   1991Dur/Liu:4664      
16 A" 964   1991Dur/Liu:4664      
17 A" 847   1991Dur/Liu:4664      
18 A" 138   1991Dur/Liu:4664      

vibrational zero-point energy: 12773.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.99102 0.08024 0.08024 1994Mil/Sto:75-89

Calculated rotational constants for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).
Product of moments of inertia moments of inertia
750801.8amu3Å6   3.43790047698675E-114gm3 cm6
Geometric Data
picture of Ethane, 1-chloro-2-fluoro-

Point Group


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-C 1
C-F 1
C-Cl 1
H-C 4

Connectivity
Atom 1 Atom 2
C1 C2
C1 Cl3
C1 H5
C1 H6
C2 F4
C2 H7
C2 H8
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A' Cs False           Cs 2 3
1 2 1A C1 True       2.720 NSRDS-NBS10 MW C1 3 5
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A' Cs False       Cs 2 3
1 2 1A C1 True       C1 3 5

Calculated electric quadrupole moments for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
6.499   1998Gus/Rui:163

Calculated electric dipole polarizability for CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-).

References
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squib reference DOI
1991Dur/Liu:4664 JR Durig, J Liu, TS Little "Conformational Analysis, Barriers to Internal Rotation, ab Initio Calculations, and Vibrational Assignment of 1-Chloro-2-fluoroethane" J. Phys. Chem. 1991, 95, 4664-4672 10.1021/j100165a015
1994Mil/Sto:75-89 CC Miller, SC Stone, LA Philips "Linking structure and vibrational mode coupling using high-resolution infrared spectroscopy: A comparison of gauche and trans 1-chloro-2-fluoroethane" J. Chem. Phys. 102, 75 (1995) 10.1063/1.469447
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10

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