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

using model chemistry: CCSD(T)/aug-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)/aug-cc-pVDZ
 hartrees
Energy at 0K-277.732825
Energy at 298.15K 
HF Energy-276.980481
Nuclear repulsion energy130.757969
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)/aug-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' 3144 3026        
2 A' 3103 2987        
3 A' 3044 2930        
4 A' 1464 1409        
5 A' 1426 1372        
6 A' 1367 1315        
7 A' 1150 1106        
8 A' 1136 1094        
9 A' 861 829        
10 A' 549 528        
11 A' 452 435        
12 A" 3137 3019        
13 A" 1465 1410        
14 A" 1364 1313        
15 A" 1127 1085        
16 A" 935 900        
17 A" 372 358        
18 A" 230 222        

Unscaled Zero Point Vibrational Energy (zpe) 13162.5 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 12668.9 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)/aug-cc-pVDZ
ABC
0.30829 0.29318 0.16872

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.325 0.173 0.000
C2 -0.911 1.046 0.000
H3 1.283 0.722 0.000
F4 0.325 -0.656 1.111
F5 0.325 -0.656 -1.111
H6 -1.808 0.405 0.000
H7 -0.910 1.684 0.900
H8 -0.910 1.684 -0.900

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51311.10331.38681.38682.14642.14932.1493
C21.51312.21702.37922.37921.10311.10331.1033
H31.10332.21702.01292.01293.10722.55812.5581
F41.38682.37922.01292.22242.62942.65523.3242
F51.38682.37922.01292.22242.62943.32422.6552
H62.14641.10313.10722.62942.62941.80371.8037
H72.14931.10332.55812.65523.32421.80371.7998
H82.14931.10332.55813.32422.65521.80371.7998

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 109.247 C1 C2 H7 109.471
C1 C2 H8 109.471 C2 C1 H3 114.945
C2 C1 F4 110.182 C2 C1 F5 110.182
H3 C1 F4 107.320 H3 C1 F5 107.320
F4 C1 F5 106.503 H6 C2 H7 109.667
H6 C2 H8 109.667 H7 C2 H8 109.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability