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

using model chemistry: QCISD(T)=FULL/daug-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 QCISD(T)=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-277.749278
Energy at 298.15K 
HF Energy-276.982381
Nuclear repulsion energy130.897971
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 QCISD(T)=FULL/daug-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' 3146 3146        
2 A' 3103 3103        
3 A' 3045 3045        
4 A' 1467 1467        
5 A' 1428 1428        
6 A' 1371 1371        
7 A' 1151 1151        
8 A' 1139 1139        
9 A' 862 862        
10 A' 552 552        
11 A' 454 454        
12 A" 3140 3140        
13 A" 1469 1469        
14 A" 1367 1367        
15 A" 1128 1128        
16 A" 936 936        
17 A" 375 375        
18 A" 230 230        

Unscaled Zero Point Vibrational Energy (zpe) 13180.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13180.2 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 QCISD(T)=FULL/daug-cc-pVDZ
ABC
0.30867 0.29397 0.16899

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.172 0.000
C2 -0.909 1.045 0.000
H3 1.280 0.721 0.000
F4 0.325 -0.655 1.111
F5 0.325 -0.655 -1.111
H6 -1.807 0.408 0.000
H7 -0.907 1.683 0.898
H8 -0.907 1.683 -0.898

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51171.10201.38491.38492.14512.14712.1471
C21.51172.21262.37672.37671.10141.10181.1018
H31.10202.21262.01042.01043.10292.55272.5527
F41.38492.37672.01042.22172.62892.65193.3203
F51.38492.37672.01042.22172.62893.32032.6519
H62.14511.10143.10292.62892.62891.80071.8007
H72.14711.10182.55272.65193.32031.80071.7969
H82.14711.10182.55273.32032.65191.80071.7969

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 109.343 C1 C2 H7 109.480
C1 C2 H8 109.480 C2 C1 H3 114.769
C2 C1 F4 110.194 C2 C1 F5 110.194
H3 C1 F4 107.329 H3 C1 F5 107.329
F4 C1 F5 106.661 H6 C2 H7 109.632
H6 C2 H8 109.632 H7 C2 H8 109.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability