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

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-277.786355
Energy at 298.15K 
HF Energy-277.055840
Nuclear repulsion energy132.397125
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/TZVP
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' 3183 3038 19.46      
2 A' 3135 2992 34.43      
3 A' 3091 2950 3.49      
4 A' 1515 1446 5.65      
5 A' 1482 1414 70.41      
6 A' 1429 1364 3.01      
7 A' 1196 1141 61.50      
8 A' 1178 1124 71.51      
9 A' 892 851 9.81      
10 A' 584 557 6.95      
11 A' 479 457 14.61      
12 A" 3179 3034 11.50      
13 A" 1513 1444 0.03      
14 A" 1445 1379 33.38      
15 A" 1190 1136 147.70      
16 A" 985 940 65.64      
17 A" 390 372 0.02      
18 A" 238 227 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13551.7 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 12933.7 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/TZVP
ABC
0.31711 0.29904 0.17259

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.163 0.000
C2 -0.901 1.039 0.000
H3 1.263 0.715 0.000
F4 0.322 -0.649 1.096
F5 0.322 -0.649 -1.096
H6 -1.793 0.413 0.000
H7 -0.899 1.669 0.889
H8 -0.899 1.669 -0.889

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50431.09081.36431.36432.12952.13312.1331
C21.50432.18832.35542.35541.08971.08971.0897
H31.09082.18831.98671.98673.07082.52542.5254
F41.36432.35541.98672.19192.60812.62863.2875
F51.36432.35541.98672.19192.60813.28752.6286
H62.12951.08973.07082.60812.60811.77961.7796
H72.13311.08972.52542.62863.28751.77961.7782
H82.13311.08972.52543.28752.62861.77961.7782

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 109.313 C1 C2 H7 109.598
C1 C2 H8 109.598 C2 C1 H3 114.023
C2 C1 F4 110.294 C2 C1 F5 110.294
H3 C1 F4 107.517 H3 C1 F5 107.517
F4 C1 F5 106.897 H6 C2 H7 109.481
H6 C2 H8 109.481 H7 C2 H8 109.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability