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All results from a given calculation for CH3CHF2 (Ethane, 1,1-difluoro-)

using model chemistry: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-277.668836
Energy at 298.15K 
HF Energy-276.959997
Nuclear repulsion energy131.726499
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CCSD(T)=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3177 3060        
2 A' 3095 2981        
3 A' 3074 2961        
4 A' 1476 1422        
5 A' 1447 1394        
6 A' 1383 1332        
7 A' 1169 1126        
8 A' 1158 1116        
9 A' 878 846        
10 A' 568 547        
11 A' 465 448        
12 A" 3175 3058        
13 A" 1481 1426        
14 A" 1405 1354        
15 A" 1180 1136        
16 A" 967 931        
17 A" 375 362        
18 A" 237 229        

Unscaled Zero Point Vibrational Energy (zpe) 13355.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 12864.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVDZ
ABC
0.31244 0.29792 0.17123

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.326 0.163 0.000
C2 -0.910 1.033 0.000
H3 1.273 0.734 0.000
F4 0.326 -0.647 1.104
F5 0.326 -0.647 -1.104
H6 -1.803 0.386 0.000
H7 -0.921 1.671 0.900
H8 -0.921 1.671 -0.900

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51131.10541.36911.36912.14062.15352.1535
C21.51132.20292.35972.35971.10321.10271.1027
H31.10542.20292.00532.00533.09542.54962.5496
F41.36912.35972.00532.20722.61102.63983.3076
F51.36912.35972.00532.20722.61103.30762.6398
H62.14061.10323.09542.61102.61101.79941.7994
H72.15351.10272.54962.63983.30761.79941.7995
H82.15351.10272.54963.30762.63981.79941.7995

picture of Ethane, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 108.921 C1 C2 H7 109.955
C1 C2 H8 109.955 C2 C1 H3 113.769
C2 C1 F4 109.915 C2 C1 F5 109.915
H3 C1 F4 107.793 H3 C1 F5 107.793
F4 C1 F5 107.432 H6 C2 H7 109.316
H6 C2 H8 109.316 H7 C2 H8 109.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability